| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 416210000 | Distally supported on radial arm | 45 |
| 20080213097 | ANGLED AIRFOIL EXTENSION FOR FAN BLADE - An angled fan blade extension includes an attachment portion and an angled portion. The attachment portion is configured to facilitate securing the angled fan blade extension to the distal end of a fan blade. The angled portion is configured to extend from the distal end of the attachment portion, creating an angled extension relative to the fan blade. Adding angular fan blade extensions to fan blades may improve the airflow control, and thereby increase the utility and efficiencies of a fan. | 09-04-2008 |
| 20080226455 | Quick click - The Quick-Click is a ceiling fan blade holder that utilizes spring-loaded balls to clamp a ceiling fan blade to it rather than traditional screws. To use The Quick Click, a user would press the spring-loaded button to make the balls move out of position and release their clamp on the fan blade. At this point, the user could remove a blade for cleaning or to change the blades. To reinsert a blade, the user would again press the spring-loaded button and insert the blade into the blade holder, lining up the holes in the fan blade with the balls located within the blade holder. | 09-18-2008 |
| 20080226456 | Fan assembly and method - Fans according to some embodiments of the present invention include a spider, a central hub coupled to the spider, and two or more fan blades. One or more fan design features can be employed (alone or in combination) in the fans of the present invention, including the use of spider arms and/or fan blades having twisted shapes, spider lobes having cupped shapes, spiders and/or fan blades having thinner dimensions than conventional spider and fan blades in similarly-sized fans, fan blades having narrower widths, larger camber-to-chord ratios and/or tapering camber-to-chord ratios, and embossments located on the spider or the fan blades of the fan. In addition, pre-balanced spider assemblies can be employed as an alternative to balancing a fan after assembly. | 09-18-2008 |
| 20080273979 | Quick install blade arms for ceiling fans - Quick attachable and detachable mounting arms for ceiling fans. A first version has flat headed fasteners initially attached to one end of mounting arms, with key-hole slots in the endshield of the ceiling fan motor. The user raises the mounting arm so that the flat headed fasteners fits through the larger openings in the keyhole slots and then pulls the mounting arm outward until the arm locks in place by the smaller opening portions of the keyhole slots. Rubber type gaskets and washers help lock and hold the mounting arms in place. The flat headed fasteners can also be located on the endshields with the keyhole slots on mounting arms. A second embodiment includes inwardly deformable springably snapable fasteners that can be located on the ends of the mounting arms which can deform inwardly and expand after passing through slots on the endshield of the rotor. Alternatively, the fasteners can be located on the bottom of the endshield with the receiving slots on the ends of the mounting arms. The different versions can include guide posts for allowing only one single fastener to be needed. A third embodiment allows the inwardly bendable snapable fasteners to be removable with screws. | 11-06-2008 |
| 20090004014 | FAST-POSITIONING DEVICE FOR ASSEMBLING BLADE BRACKETS TO A MOTOR HOUSING OF A CEILING FAN - A fast-positioning device for assembling blade brackets to a motor housing of a ceiling fan includes a motor housing and plural blade brackets. The motor housing has the circumference of its underside divided in to equal parts respectively formed thereon with a positioning plate protruding downward and respectively formed with a long side and a short side. The long sides of the positioning plates are radially and orderly arranged, based on the center of the motor housing. Each blade bracket has the corresponding side of the motor housing formed with a connecting portion having its end cut with at least one notch to be horizontally and directly fitted on the positioning plate of the motor housing without obstructing sight line, enabling the blade brackets to be quickly positioned on the motor housing and their locking locations to be completely aligned to each other. | 01-01-2009 |
| 20090004015 | FAST-POSITIONING DEVICE FOR ASSEMBLING BLADE BRACKETS TO A MOTOR HOUSING OF A CEILING FAN - The invention relates to a fast-positioning device for assembling b lad e brackets to a motor housing of a ceiling fan. The motor housing has its bottom provided with at least a positioning plate respectively projected downward at plural locations equidistantly spaced apart around its circumference. Each of the positioning plates has a long side arranged around the circumference of the motor housing. Each blade bracket has a connecting portion for connecting with the motor housing. The connecting portion has at least a plugging groove bored vertically to correspond to and be inserted by the positioning plate, so as to keep the blade bracket quickly positioned under the motor housing and engaging positioning locations of the blade brackets and the motor housing exactly facing to each other. | 01-01-2009 |
| 20090004016 | FAST-POSITIONING DEVICE FOR ASSEMBLING BLADE BRACKETS TO A MOTOR HOUSING OF A CEILING FAN - The invention relates to a fast-positioning device for assembling blade brackets to a motor housing of a ceiling fan. The motor housing has its bottom provided with plural locations located around its circumference, which are respectively extended downward with at least two restricting plates having a long side aligned as a beam radiated from the center of the motor housing. Each location of the restricting plates is to be connected with a blade bracket, which has a connecting portion extended with at least one positioning projection for being moved horizontally to engage with the restricting plates. As good vision is kept during installation, the blade brackets can be easily assembled on the motor housing and the relative locations to be positioned are in a line. | 01-01-2009 |
| 20090035140 | QUICK ASSEMBLY BLADE FOR A CEILING FAN (2) - A quick assembly blade for a ceiling fan includes a blade frame, a blade and a press board. The blade frame has at least three studs respectively secured thereon with a fastener to be fitted in the insert holes of the blade and the engage holes of the press board. The engage holes of the press board have their rear ends respectively expanded to form a receiving hole with a comparatively large diameter. The blade is bored with a positioning hole among its insert holes, and the press board is disposed with at least one stopper at a location corresponding to the positioning hole of the blade. Thus, when the press board is assembled on the blade, the engage holes is respectively fixed with the underside of the fasteners, and the stopper is stuck in the positioning hole to prevent the press board from disengaging, thus quickly finishing assembly of the blade. | 02-05-2009 |
| 20090035141 | QUICK ASSEMBLY BLADE FOR A CEILING FAN (4) - A quick assembly blade for a ceiling fan includes a blade frame, one stop member, a blade and a press board. The blade frame has a pan-shaped body fixed with three projecting bases protruding upward. The blade and the press board are respectively and correspondingly bored with insert holes and engage holes to be respectively fitted on the projecting bases. The stop member is secured on one of the projecting bases and inserted through a through hole of said blade, having its free end formed with a stop portion received in a receiving hole of said press board and stuck on the inner wall of the receiving hole. When the press board is moved backward horizontally, the blade can be quickly and stably assembled on the blade frame, and the stop member is concealed in the receiving hole not exposed to outside, able to elevate the integral beauty of the ceiling fan. | 02-05-2009 |
| 20090035142 | QUICK ASSEMBLY BLADE FOR A CEILING FAN - A quick assembly blade for a ceiling fan includes a blade frame, a blade and a clamping member. The blade frame is fixed therein with at least three studs spaced apart equidistantly for a fastener to be respectively locked therein. The blade has one end bored with insert holes at the locations corresponding to the studs of the blade frame for the fasteners to be respectively inserted therethrough. The clamping member plate-shaped is secured on the blade at a location matching with the blade frame, having one end cut with two engage notches corresponding to two adjacent fasteners below and the other end provided with an elastic engage portion. The clamping member can be quickly pressed and fixed on the blade by means of its engage notches and its elastic engage portion to enable the blade to be assembled on the blade frame quickly and stably. | 02-05-2009 |
| 20090035143 | QUICK ASSEMBLY BLADE FOR A CEILING FAN - A quick assembly blade for a ceiling fan includes a blade frame fixed in side with at least three studs respectively for a fastener to be inserted therein. A blade to be secured on the blade frame is bored with three assembling holes at the locations corresponding to the studs of the blade frame, and a clamping member made of elastic material is fixed on the blade. The clamping member is cut with three engage notches at the locations corresponding to the fasteners. The clamping member has its opposite sides compressed transversely to be received among the fasteners and, after released, the clamping member will recover its elastic force and have its engage notches respectively and quickly engaged on the fasteners, thus achieving effect of quickly and stably assembling the blade of the ceiling fan. | 02-05-2009 |
| 20090123287 | QUICK ASSEMBLY BLADES FOR A CEILING FAN - Quick assembly blades for a ceiling fan at least include a blade bracket, a blade and a clamping member. The clamping member is composed of a base plate and a top plate. A rear portion of the base plate has an elastic supporting plate corresponding to a locking plate provided in a rear portion of the top plate, so that the base plate and the top plate can axially move closer to each other to keep a leaning portion of the supporting plate blocked by a locking portion formed inside the locking plate, thus enabling the blade quickly assembled and firmly clamped on the blade bracket by the clamping member. | 05-14-2009 |
| 20090169389 | IMPELLER AND COOLING FAN USING THE SAME - A cooling fan ( | 07-02-2009 |
| 20090175728 | Blade arm - The apparatus of the present invention comprises a user adjustable variable axial length and variable pitch ceiling fan blade arm. The blade arm includes a pair of extension elements. Each element is threadably engaged with each other. At the other end of the extension elements are custom flanges for the purpose of attaching a fan blade and connecting the blade arm to a ceiling fan motor. | 07-09-2009 |
| 20090208337 | TURBINE BLADE SUPPORT ASSEMBLY - A turbine blade support assembly comprises a central hub. A plurality of carrying members extend outwardly from the central hub. A respective subsidiary hub is provided on each of the carrying members for securing a respective turbine blade to each carrying member. | 08-20-2009 |
| 20090246028 | FAN BLADE IRON ISOLATION - A ceiling fan is disclosed having an electric motor ( | 10-01-2009 |
| 20100074754 | Securing Device For Connecting Blades To Blade-Root Attachment Of Remote-Control Helicopters - A remote-control helicopter rotor mechanism includes a rotor with multiple blade-root attachments and each blade-root attachment includes a slot located between two arms. Each arm includes two clamping surfaces and a recess which is defined longitudinally in an inside thereof and located between the two clamping surfaces. Multiple blades each have an elongate body and a root, the root has two protrusions extending from two opposite sides thereof and a passage is defined through the two protrusions and the root. The root inserted into the slot of the blade-root attachment corresponding thereto and a screw extends through the two arms and the passage of the root to connect the root within the slot. The protrusions are matched with the recesses of the two arms and the two clamping surfaces are matched with surfaces of the root. | 03-25-2010 |
| 20100104442 | FAN BLADE MOUNTING SYSTEM - A ceiling fan ( | 04-29-2010 |
| 20100124504 | Structure of ceiling fan blades their frames - A structure of blade and blade frame for a ceiling fan is disclosed. The inserting parts of a blade frame go through the through holes on a blade. Each inserting part has a stopping part exposed from the blade. An elastic positioning element connects several limiting parts using linear linking parts. The limiting parts urge against the stopping parts in opposite directions, providing constraints between the stopping parts and the blade and, thereby, combining the blade and the blade frame. | 05-20-2010 |
| 20100150722 | Fixture Device of Blade and Blade Frame of a Ceiling Fan - A fixture of blade and blade frame in a ceiling fan is disclosed. The blade frame has an inserting part to go through the through hole on the blade. The stopping part of the inserting part is blocked by the limiting parts of the positioning element, thereby restricting and positioning the blade and the blade frame. At least one of the several limiting parts is movable and can retract and extend relative to the positioning element, thereby blocking and leaving the corresponding stopping part. Along with fixed limiting parts, the blade and the blade frame can be controlled to be positioned or departed. | 06-17-2010 |
| 20110058947 | Fan Blade Mounting System - A ceiling fan ( | 03-10-2011 |
| 20110103959 | Support Spine for a Wind Turbine Blade - According to embodiments described in the specification, a support spine for a wind turbine blade is provided, comprising an anchor member having a proximal end and a distal end, a transition member extending from the distal end of the anchor member, the transition member having a distal end, and a blade support member extending from the distal end of the transition member. At least a portion of the anchor member can be configured for coupling to a rotor drum. The support spine has a reduced cross-sectional area at the distal end of the transition member than at the distal end of the anchor member. The support spine can support one or more wind turbine blades. | 05-05-2011 |
| 20110158812 | KIND OF FAN BLADE CAN BE EASILY ASSEMBLED AND DISASSEMBLED - This invention publishes a kind of fan blade which can be assembled and disassembled quickly, including blade and blade bracket for ceiling fan, desk fan, pole fan, etc. In this invention, the blade and blade bracket are joined together by the inserting structure. During assembling, we only need to align the mounting holes with the elastic connectors and press downwards forcibly, and then the blade could be installed on the blade bracket securely. In this invention, screws are unnecessary for installing the blade on the blade bracket. The assembling is fast and the inserting structure is firm and reliable. When it comes to the necessity of disassembling the blade, only a press plate with matched holes is needed to press the elastic connectors and separate the blade from the blade bracket, which could greatly enhance the ease of use. | 06-30-2011 |
| 20110158813 | Quick Assembly Blades for Ceiling Fans - Easy to attach and detach blades for overhead ceiling fans. A first version has a ceiling fan blade with keyhole slots that fit over flat topped fasteners on a mounting arm. Pulling the blade away from the arm locks the slots to the fasteners. A second version is similar to the first and has a decorative bottom cover having snappable tapered protrusions which attach through the keyholes and into mateable through-holes in the mounting arm connection. The third version has a protruding end portion of the blade that fits into a slot in the mounting arm where spring loaded pistons press into grooves in the protrusion end portion of the blade. Latching handles allow users to manually move the pistons. A fourth version has a slot in the blade which fits about a mateable housing in the mounting arm where opposing spring loaded pistons press into interior wall grooves in the slot of the blade. A fifth version has the blade with slots fit over the end of the mounting arm so that pulling the blade from the mounting arm causes spring loaded piston to interlock into a interior wall groove in the slot of the blade. | 06-30-2011 |
| 20110243745 | Structure for combining vane frame and vane of hanging fan - A structure for combining a vane frame and a vane of a hanging fan includes an elastic plate onto the vane frame, a pressing portion at a front end of the elastic plate, a latching portion at a rear end of the elastic plate, and three embedding blocks on the vane frame. One of the embedding blocks abuts the elastic plate. Slants are formed on both sides of the embedding block. A snap-in portion is formed at the bottom of the embedding block. Three embedding holes are formed at a front end of the vane, each having a connecting surface for connecting the vane with each embedding block. The pressing portion abuts the vane. The connecting surface and slant abut with each other. The front end of the embedding hole is snapped with the snap-in portion. The latching portion is pressed against a rear end of the embedding hole. | 10-06-2011 |
| 20120020795 | MOUNTING APPARATUS FOR FAN - A mounting apparatus for mounting a system fan and an exterior fan to a chassis includes a mounting bracket and a plurality of connecting members. The mounting bracket includes a rectangular hollow frame and x-shaped spoke fixed in the rectangular hollow frame. Each of the connecting members includes a first connecting portion and a second connecting portion extending from an end of the first connecting portion. The system fan is secured to the chassis by the first connecting portion each running through the mounting bracket, the chassis, and the system fan. The exterior fan is secured to the chassis by fastening means each running through the exterior fan and one second connecting portion of the connecting members. | 01-26-2012 |
| 20120034085 | FAN ASSEMBLIES AND METHODS FOR ASSEMBLING SAME - In general terms, embodiments of the present invention relate to fan assemblies and methods for installing the same. For example, some embodiments of the present invention include a fan assembly that includes: (a) a rotational member; (b) a connection member structured for connection to the rotational member and including a body portion and a head portion; and (c) a blade arm defining an opening therein, such that the opening includes an open end portion and a closed end portion. In some embodiments, the connection member and the blade arm are configured such that, (a) when the blade arm is positioned in a support state, the head portion of the connection member rests against the blade arm to support the blade arm relative to the rotational member, and (b) when the blade arm is positioned in a secure state, the head portion of the connection member at least partially bears against the blade arm adjacent to the opening defined in the blade arm. Also, some of these embodiments of the present invention may be characterized as “easy install” fan assemblies because they include an “easy install” blade arm to motor connection, as described above, and/or an “easy install” blade arm to fan blade connection. | 02-09-2012 |
| 20120087796 | CEILING FAN - A ceiling fan having a motor for rotating a spider with the spider designed to support a plurality of blades for rotation. The spider having a plurality of outwardly extending arms with each blade secured at its root end to at least a pair of the arms. | 04-12-2012 |
| 20120099997 | Vertical Axis Wind Turbine - A vertical axis wind turbine comprising a main wind blade with one or more blade(s), at least one connecting arm, attached to main blade and an abutment of connecting arm arranged with axle hole of wind rotor shaft, wherein, a main blade is fixed with abutment of connecting arm through connecting arm to form an vertical axis wind turbine. | 04-26-2012 |
| 20120230828 | CYLINDRICAL WINDMILL FOR WIND POWER GENERATION - The cylindrical windmill for wind power generation includes: a support frame formed in a cylindrical shape around a rotational shaft; a plurality of wing fixtures protruded from the support frame; a plurality of wing fixing plates, each of which is fixed to the corresponding wing fixture and has elastic properties; and a plurality of wings, each of which is composed of an operating range installed in such a manner that the middle portion between the center and the tip of a wing is fixed to one side of the wing fixing plate to open or close a space that is formed between the wing fixture and the wing fixing plate, and an auxiliary operating range adapted to protrude outside the wing fixture when the space is opened by the operating range. | 09-13-2012 |
| 20120251326 | NOISE AND PERFORMANCE IMPROVED ROTOR BLADE FOR A HELICOPTER - A noise reduced and performance improved rotor blade ( | 10-04-2012 |
| 20130156585 | METHOD AND DEVICE FOR ELECTRICAL POWER GENERATION FROM WIND POWER AND METHOD OF MANUFACTURE THEREOF - A method and system are provided for converting wind power into electrical energy. One or more blades are attached by one or more struts to a vertical or central shaft, wherein each strut mechanically couples at least one of the blades to the shaft. One or more blades may be laminar. An optional method of fabricating a wind turbine blade, or fluid turbine blade, wherein the blade may be manufactured by a pultrusion process; may present a constant blade twist along a central axis of the blade itself; and/or may present a cross-section along the blade central axis. Alternatively or additionally, an airfoil is provided may be laminar and/or uncambered. According to a still additional optional aspect of the method of the present invention, a Darrieus-type vertical-axis wind turbine is provided, the turbine having a shaft that defines a rotation axis with a plurality of substantially rigid blades. | 06-20-2013 |
| 20130287577 | ROTOR-ARM ASSEMBLY AND A MULTI-ROTORCRAFT - Various embodiments provide a rotor-arm assembly for a multi-rotorcraft, the rotor-arm assembly comprising: a plurality of rotor-arms, each rotor-arm comprising a rotor assembly at a distal end portion and a body portion connector at a proximal end portion, the body portion connector having a screw thread; and a body portion comprising a plurality of rotor-arm connectors, each rotor-arm connector having a screw thread; wherein the screw-thread of each body portion connector is configured in use to engage with the screw-thread of one of the rotor-arm connectors to detachably attach each rotor-arm to the body portion. | 10-31-2013 |
| 20140099208 | VERTICAL AXIS WIND TURBINE WITH SELF-STARTING CAPABILITIES - A vertical axis wind turbine and vertical axis wind turbine assembly comprising a rotary body and a plurality of blades. A cross section through each blade of the plurality of blades transverse to the rotary axis comprises an inner camber line, an outer camber line, and a chord line. The outer camber line comprises a first portion, a transition portion and a second portion. The second portion is longer, in the lengthwise direction, than a combined length of the first portion and the transition portion. The average second portion thickness is less than half an average first portion thickness. A magnitude of an average rate of change in a transition portion thickness is at least twice a magnitude of an average rate of change in a first portion thickness, and a magnitude of an average rate of change in a second portion thickness. | 04-10-2014 |
| 20140105749 | PROPELLER OF A PULSED AIRFLOW GENERATOR, IN PARTICULAR FOR A PORTABLE BLOWER - A propeller of a pulsed airflow generator, in particular for a standalone portable blower, of the type made up of the assembly of two parts coaxially adjoining one another, i.e.: a first front part made as a single piece and comprising a plurality of twisted blades connected to a central ring, and a second rear part with a generally conical shape also made as a single piece, the central portion of said assembly having a conical shape and making up the rear portion of an air-inlet cone, said propeller being characterised in that said first and second rear parts are secured by a clamping device made up of a hub including two parts assembled coaxially and between which said two parts that make up the propeller are clamped, said hub being rotatably secured to the latter and maintaining said front and rear parts in the assembled position thereof. | 04-17-2014 |
| 20140286780 | AEROGENERATOR BLADE TIP SEGMENT AND METHOD OF ASSEMBLY - Provided is a method of assembling an aerogenerator blade tip segment. The method includes: removing an outboard tip end part of an aerogenerator blade; removing at least a portion of a leading edge panel and at least a portion of a trailing edge panel from a remaining outboard end of the aerogenerator blade, thus forming a body and a projection extending in a substantially longitudinal direction from an outboard end of the body, the projection having a spar cap portion and a shear web portion; removing a coating from an outer surface of the projection; attaching at least one reinforcement to the shear web portion of the projection; bonding a tip segment to the projection; and covering a joint between the body of the aerogenerator blade and the tip segment with an aerodynamic profile. | 09-25-2014 |
| 20140301854 | SECUREMENT SYSTEM AND METHOD FOR SECURING AN ATTACHMENT PORTION OF AT LEAST ONE ROTOR BLADE OR ROTOR BLADE SEGMENT IN A MOUNTING SITE OF A ROTOR BASE - A securement system for securing an attachment portion of at least one rotor blade or rotor blade segment in a mounting site of a rotor base. The securement system has at least one holder element and a second holder element, each of which has a holding portion and a connecting portion. The connecting portions can be introduced into the mounting site so as to establish a clip connection and can be locked together in the mounting site. The holding portions are configured so as to fasten the attachment portion of the at least one rotor blade or of the rotor blade segment in the mounting site in the locked state of the connecting portions. Further disclosed is a method for securing an attachment portion of at least one rotor blade or rotor blade segment in a mounting site of a rotor base and a rotor having a securement system. | 10-09-2014 |
| 20140377073 | SYSTEMS AND METHODS FOR BLADE ATTACHMENT - Systems and methods for blade attachment are proved. The systems and methods include an aircraft system having a rotor hub including a blade connector and a composite blade including a lug fitting assembly. The lug fitting assembly includes a fitting core including a lug fitting aperture, a lug bushing coupled within the lug fitting aperture, and an outer fitting substantially surrounding the fitting core. | 12-25-2014 |
| 20150010403 | AERODYNAMIC HUB ASSEMBLY FOR A WIND TURBINE - An aerodynamic hub assembly for a wind turbine is disclosed. The hub assembly may include a hub extension, a rotor blade having a blade root and a blade tip, and a hub airfoil section mounted at least partially over the hub extension. The hub airfoil section may be fixed relative to the rotor blade or may be configured to rotate about a common pitch axis with the rotor blade. The hub extension may be connected to and extend radially from a center of the hub assembly. Further, the hub assembly may include a pitch bearing having an inner race and an outer race, wherein the pitch bearing may be coupled between the hub extension and the blade root. Additionally, the hub assembly may also include an aerodynamically-shaped spinner, wherein the spinner may house at least a portion of a root structure extending radially from the center of the hub assembly. | 01-08-2015 |
| 20150078903 | QUICK INSTALLATION CEILING FAN BLADES - Devices, apparatus, systems, and methods for the quick installation of ceiling fan blades for ceiling fans. The invention uses a blade with three slots running in a linear direction from the mounting end of the blade, and three pre-attached fasteners upwardly projecting from the outer end of a blade arm. One of the fasteners is springably bendable with inwardly extending clip edge, another fastener that forms an upright post, and a third fastener having a top end with an outwardly extending lip edge. Another embodiment can include four slots per blade and four pre-attached upwardly protruding fasteners per blade arm. A novel method of installing each blade can include angling the blade to the mounting ends of the blade arm so that the outwardly extending lip edge catches on the third slot in from the mounting end of the blade. Next, the blade is laid down so that the other two slot openings pass over the other pre-attached fasteners while moving the mounting end of the blade toward the motor mounting end of the blade arm. This causes the springably bendable fastener to bend back and snapably spring back catching onto the first slot locking the blade to the blade arm. | 03-19-2015 |
| 20150110632 | BLADE ASSEMBLY FOR A WIND TURBINE ROTOR - A blade assembly for a wind turbine rotor is provided, the blade assembly comprising at least two blade sections ( | 04-23-2015 |
| 20130156584 | COMPRESSOR ROTOR WITH INTERNAL STIFFENING RING OF DISTINCT MATERIAL - A compressor rotor has a hub at a radially outer location, and a leg extending from an inner ring at a radially inner location to the hub. The hub has an inner bore at a location spaced from the leg. A stiffening ring is force fit into the inner bore of the hub. | 06-20-2013 |
| 20130202442 | FAN AND BOOST JOINT - A gas turbine engine having at least one spool assembly, the at least one spool assembly including a fan rotor, a compressor disposed downstream of the fan rotor, a turbine and a shaft connecting the fan rotor, compressor and turbine, a joint affixed to an upstream end of the shaft, and including a first link connecting the fan rotor to the shaft and a second link connecting the compressor to the shaft, the second link being less rigid then the first link. | 08-08-2013 |
| 416211000 | Axially extending blade | 2 |
| 20100143141 | BI-AXIAL COMPLIANT BEARING - Embodiments of a bi-axial compliant bearing assembly and methods of assembling the bi-axial compliant bearing assembly are disclosed. A bi-axial compliant bearing assembly employs a transition bearing race. The transition bearing race comprises a cylindrical surface. The cylindrical surface is configured to rotatably engage a rotational bearing element and to slidably engage the rotational bearing element along an axis. The transition bearing race also includes a spherically-compliant surface. The spherically-compliant surface is configured to engage a spherically-compliant element and to enable the spherically-compliant element to rotate transversely to the axis. | 06-10-2010 |
| 20140127024 | CENTRIFUGAL FAN IMPELLER STRUCTURE - A centrifugal fan impeller structure includes a hub and a blade body set. The hub has an extension section. The blade body set has multiple blade bodies. The blade bodies outward extend from the extension section of the hub. Each two adjacent blade bodies define therebetween a flow way, an air outlet and an air inlet. The air outlet and the air inlet are respectively positioned at two ends of the flow way in communication with the flow way. The air outlets are arranged at unequal intervals so as to greatly reduce noise in operation. | 05-08-2014 |
| 416210000 | Turbo machine | 2 |
| 20080213097 | ANGLED AIRFOIL EXTENSION FOR FAN BLADE - An angled fan blade extension includes an attachment portion and an angled portion. The attachment portion is configured to facilitate securing the angled fan blade extension to the distal end of a fan blade. The angled portion is configured to extend from the distal end of the attachment portion, creating an angled extension relative to the fan blade. Adding angular fan blade extensions to fan blades may improve the airflow control, and thereby increase the utility and efficiencies of a fan. | 09-04-2008 |
| 20080226455 | Quick click - The Quick-Click is a ceiling fan blade holder that utilizes spring-loaded balls to clamp a ceiling fan blade to it rather than traditional screws. To use The Quick Click, a user would press the spring-loaded button to make the balls move out of position and release their clamp on the fan blade. At this point, the user could remove a blade for cleaning or to change the blades. To reinsert a blade, the user would again press the spring-loaded button and insert the blade into the blade holder, lining up the holes in the fan blade with the balls located within the blade holder. | 09-18-2008 |
| 20080226456 | Fan assembly and method - Fans according to some embodiments of the present invention include a spider, a central hub coupled to the spider, and two or more fan blades. One or more fan design features can be employed (alone or in combination) in the fans of the present invention, including the use of spider arms and/or fan blades having twisted shapes, spider lobes having cupped shapes, spiders and/or fan blades having thinner dimensions than conventional spider and fan blades in similarly-sized fans, fan blades having narrower widths, larger camber-to-chord ratios and/or tapering camber-to-chord ratios, and embossments located on the spider or the fan blades of the fan. In addition, pre-balanced spider assemblies can be employed as an alternative to balancing a fan after assembly. | 09-18-2008 |
| 20080273979 | Quick install blade arms for ceiling fans - Quick attachable and detachable mounting arms for ceiling fans. A first version has flat headed fasteners initially attached to one end of mounting arms, with key-hole slots in the endshield of the ceiling fan motor. The user raises the mounting arm so that the flat headed fasteners fits through the larger openings in the keyhole slots and then pulls the mounting arm outward until the arm locks in place by the smaller opening portions of the keyhole slots. Rubber type gaskets and washers help lock and hold the mounting arms in place. The flat headed fasteners can also be located on the endshields with the keyhole slots on mounting arms. A second embodiment includes inwardly deformable springably snapable fasteners that can be located on the ends of the mounting arms which can deform inwardly and expand after passing through slots on the endshield of the rotor. Alternatively, the fasteners can be located on the bottom of the endshield with the receiving slots on the ends of the mounting arms. The different versions can include guide posts for allowing only one single fastener to be needed. A third embodiment allows the inwardly bendable snapable fasteners to be removable with screws. | 11-06-2008 |
| 20090004014 | FAST-POSITIONING DEVICE FOR ASSEMBLING BLADE BRACKETS TO A MOTOR HOUSING OF A CEILING FAN - A fast-positioning device for assembling blade brackets to a motor housing of a ceiling fan includes a motor housing and plural blade brackets. The motor housing has the circumference of its underside divided in to equal parts respectively formed thereon with a positioning plate protruding downward and respectively formed with a long side and a short side. The long sides of the positioning plates are radially and orderly arranged, based on the center of the motor housing. Each blade bracket has the corresponding side of the motor housing formed with a connecting portion having its end cut with at least one notch to be horizontally and directly fitted on the positioning plate of the motor housing without obstructing sight line, enabling the blade brackets to be quickly positioned on the motor housing and their locking locations to be completely aligned to each other. | 01-01-2009 |
| 20090004015 | FAST-POSITIONING DEVICE FOR ASSEMBLING BLADE BRACKETS TO A MOTOR HOUSING OF A CEILING FAN - The invention relates to a fast-positioning device for assembling b lad e brackets to a motor housing of a ceiling fan. The motor housing has its bottom provided with at least a positioning plate respectively projected downward at plural locations equidistantly spaced apart around its circumference. Each of the positioning plates has a long side arranged around the circumference of the motor housing. Each blade bracket has a connecting portion for connecting with the motor housing. The connecting portion has at least a plugging groove bored vertically to correspond to and be inserted by the positioning plate, so as to keep the blade bracket quickly positioned under the motor housing and engaging positioning locations of the blade brackets and the motor housing exactly facing to each other. | 01-01-2009 |
| 20090004016 | FAST-POSITIONING DEVICE FOR ASSEMBLING BLADE BRACKETS TO A MOTOR HOUSING OF A CEILING FAN - The invention relates to a fast-positioning device for assembling blade brackets to a motor housing of a ceiling fan. The motor housing has its bottom provided with plural locations located around its circumference, which are respectively extended downward with at least two restricting plates having a long side aligned as a beam radiated from the center of the motor housing. Each location of the restricting plates is to be connected with a blade bracket, which has a connecting portion extended with at least one positioning projection for being moved horizontally to engage with the restricting plates. As good vision is kept during installation, the blade brackets can be easily assembled on the motor housing and the relative locations to be positioned are in a line. | 01-01-2009 |
| 20090035140 | QUICK ASSEMBLY BLADE FOR A CEILING FAN (2) - A quick assembly blade for a ceiling fan includes a blade frame, a blade and a press board. The blade frame has at least three studs respectively secured thereon with a fastener to be fitted in the insert holes of the blade and the engage holes of the press board. The engage holes of the press board have their rear ends respectively expanded to form a receiving hole with a comparatively large diameter. The blade is bored with a positioning hole among its insert holes, and the press board is disposed with at least one stopper at a location corresponding to the positioning hole of the blade. Thus, when the press board is assembled on the blade, the engage holes is respectively fixed with the underside of the fasteners, and the stopper is stuck in the positioning hole to prevent the press board from disengaging, thus quickly finishing assembly of the blade. | 02-05-2009 |
| 20090035141 | QUICK ASSEMBLY BLADE FOR A CEILING FAN (4) - A quick assembly blade for a ceiling fan includes a blade frame, one stop member, a blade and a press board. The blade frame has a pan-shaped body fixed with three projecting bases protruding upward. The blade and the press board are respectively and correspondingly bored with insert holes and engage holes to be respectively fitted on the projecting bases. The stop member is secured on one of the projecting bases and inserted through a through hole of said blade, having its free end formed with a stop portion received in a receiving hole of said press board and stuck on the inner wall of the receiving hole. When the press board is moved backward horizontally, the blade can be quickly and stably assembled on the blade frame, and the stop member is concealed in the receiving hole not exposed to outside, able to elevate the integral beauty of the ceiling fan. | 02-05-2009 |
| 20090035142 | QUICK ASSEMBLY BLADE FOR A CEILING FAN - A quick assembly blade for a ceiling fan includes a blade frame, a blade and a clamping member. The blade frame is fixed therein with at least three studs spaced apart equidistantly for a fastener to be respectively locked therein. The blade has one end bored with insert holes at the locations corresponding to the studs of the blade frame for the fasteners to be respectively inserted therethrough. The clamping member plate-shaped is secured on the blade at a location matching with the blade frame, having one end cut with two engage notches corresponding to two adjacent fasteners below and the other end provided with an elastic engage portion. The clamping member can be quickly pressed and fixed on the blade by means of its engage notches and its elastic engage portion to enable the blade to be assembled on the blade frame quickly and stably. | 02-05-2009 |
| 20090035143 | QUICK ASSEMBLY BLADE FOR A CEILING FAN - A quick assembly blade for a ceiling fan includes a blade frame fixed in side with at least three studs respectively for a fastener to be inserted therein. A blade to be secured on the blade frame is bored with three assembling holes at the locations corresponding to the studs of the blade frame, and a clamping member made of elastic material is fixed on the blade. The clamping member is cut with three engage notches at the locations corresponding to the fasteners. The clamping member has its opposite sides compressed transversely to be received among the fasteners and, after released, the clamping member will recover its elastic force and have its engage notches respectively and quickly engaged on the fasteners, thus achieving effect of quickly and stably assembling the blade of the ceiling fan. | 02-05-2009 |
| 20090123287 | QUICK ASSEMBLY BLADES FOR A CEILING FAN - Quick assembly blades for a ceiling fan at least include a blade bracket, a blade and a clamping member. The clamping member is composed of a base plate and a top plate. A rear portion of the base plate has an elastic supporting plate corresponding to a locking plate provided in a rear portion of the top plate, so that the base plate and the top plate can axially move closer to each other to keep a leaning portion of the supporting plate blocked by a locking portion formed inside the locking plate, thus enabling the blade quickly assembled and firmly clamped on the blade bracket by the clamping member. | 05-14-2009 |
| 20090169389 | IMPELLER AND COOLING FAN USING THE SAME - A cooling fan ( | 07-02-2009 |
| 20090175728 | Blade arm - The apparatus of the present invention comprises a user adjustable variable axial length and variable pitch ceiling fan blade arm. The blade arm includes a pair of extension elements. Each element is threadably engaged with each other. At the other end of the extension elements are custom flanges for the purpose of attaching a fan blade and connecting the blade arm to a ceiling fan motor. | 07-09-2009 |
| 20090208337 | TURBINE BLADE SUPPORT ASSEMBLY - A turbine blade support assembly comprises a central hub. A plurality of carrying members extend outwardly from the central hub. A respective subsidiary hub is provided on each of the carrying members for securing a respective turbine blade to each carrying member. | 08-20-2009 |
| 20090246028 | FAN BLADE IRON ISOLATION - A ceiling fan is disclosed having an electric motor ( | 10-01-2009 |
| 20100074754 | Securing Device For Connecting Blades To Blade-Root Attachment Of Remote-Control Helicopters - A remote-control helicopter rotor mechanism includes a rotor with multiple blade-root attachments and each blade-root attachment includes a slot located between two arms. Each arm includes two clamping surfaces and a recess which is defined longitudinally in an inside thereof and located between the two clamping surfaces. Multiple blades each have an elongate body and a root, the root has two protrusions extending from two opposite sides thereof and a passage is defined through the two protrusions and the root. The root inserted into the slot of the blade-root attachment corresponding thereto and a screw extends through the two arms and the passage of the root to connect the root within the slot. The protrusions are matched with the recesses of the two arms and the two clamping surfaces are matched with surfaces of the root. | 03-25-2010 |
| 20100104442 | FAN BLADE MOUNTING SYSTEM - A ceiling fan ( | 04-29-2010 |
| 20100124504 | Structure of ceiling fan blades their frames - A structure of blade and blade frame for a ceiling fan is disclosed. The inserting parts of a blade frame go through the through holes on a blade. Each inserting part has a stopping part exposed from the blade. An elastic positioning element connects several limiting parts using linear linking parts. The limiting parts urge against the stopping parts in opposite directions, providing constraints between the stopping parts and the blade and, thereby, combining the blade and the blade frame. | 05-20-2010 |
| 20100150722 | Fixture Device of Blade and Blade Frame of a Ceiling Fan - A fixture of blade and blade frame in a ceiling fan is disclosed. The blade frame has an inserting part to go through the through hole on the blade. The stopping part of the inserting part is blocked by the limiting parts of the positioning element, thereby restricting and positioning the blade and the blade frame. At least one of the several limiting parts is movable and can retract and extend relative to the positioning element, thereby blocking and leaving the corresponding stopping part. Along with fixed limiting parts, the blade and the blade frame can be controlled to be positioned or departed. | 06-17-2010 |
| 20110058947 | Fan Blade Mounting System - A ceiling fan ( | 03-10-2011 |
| 20110103959 | Support Spine for a Wind Turbine Blade - According to embodiments described in the specification, a support spine for a wind turbine blade is provided, comprising an anchor member having a proximal end and a distal end, a transition member extending from the distal end of the anchor member, the transition member having a distal end, and a blade support member extending from the distal end of the transition member. At least a portion of the anchor member can be configured for coupling to a rotor drum. The support spine has a reduced cross-sectional area at the distal end of the transition member than at the distal end of the anchor member. The support spine can support one or more wind turbine blades. | 05-05-2011 |
| 20110158812 | KIND OF FAN BLADE CAN BE EASILY ASSEMBLED AND DISASSEMBLED - This invention publishes a kind of fan blade which can be assembled and disassembled quickly, including blade and blade bracket for ceiling fan, desk fan, pole fan, etc. In this invention, the blade and blade bracket are joined together by the inserting structure. During assembling, we only need to align the mounting holes with the elastic connectors and press downwards forcibly, and then the blade could be installed on the blade bracket securely. In this invention, screws are unnecessary for installing the blade on the blade bracket. The assembling is fast and the inserting structure is firm and reliable. When it comes to the necessity of disassembling the blade, only a press plate with matched holes is needed to press the elastic connectors and separate the blade from the blade bracket, which could greatly enhance the ease of use. | 06-30-2011 |
| 20110158813 | Quick Assembly Blades for Ceiling Fans - Easy to attach and detach blades for overhead ceiling fans. A first version has a ceiling fan blade with keyhole slots that fit over flat topped fasteners on a mounting arm. Pulling the blade away from the arm locks the slots to the fasteners. A second version is similar to the first and has a decorative bottom cover having snappable tapered protrusions which attach through the keyholes and into mateable through-holes in the mounting arm connection. The third version has a protruding end portion of the blade that fits into a slot in the mounting arm where spring loaded pistons press into grooves in the protrusion end portion of the blade. Latching handles allow users to manually move the pistons. A fourth version has a slot in the blade which fits about a mateable housing in the mounting arm where opposing spring loaded pistons press into interior wall grooves in the slot of the blade. A fifth version has the blade with slots fit over the end of the mounting arm so that pulling the blade from the mounting arm causes spring loaded piston to interlock into a interior wall groove in the slot of the blade. | 06-30-2011 |
| 20110243745 | Structure for combining vane frame and vane of hanging fan - A structure for combining a vane frame and a vane of a hanging fan includes an elastic plate onto the vane frame, a pressing portion at a front end of the elastic plate, a latching portion at a rear end of the elastic plate, and three embedding blocks on the vane frame. One of the embedding blocks abuts the elastic plate. Slants are formed on both sides of the embedding block. A snap-in portion is formed at the bottom of the embedding block. Three embedding holes are formed at a front end of the vane, each having a connecting surface for connecting the vane with each embedding block. The pressing portion abuts the vane. The connecting surface and slant abut with each other. The front end of the embedding hole is snapped with the snap-in portion. The latching portion is pressed against a rear end of the embedding hole. | 10-06-2011 |
| 20120020795 | MOUNTING APPARATUS FOR FAN - A mounting apparatus for mounting a system fan and an exterior fan to a chassis includes a mounting bracket and a plurality of connecting members. The mounting bracket includes a rectangular hollow frame and x-shaped spoke fixed in the rectangular hollow frame. Each of the connecting members includes a first connecting portion and a second connecting portion extending from an end of the first connecting portion. The system fan is secured to the chassis by the first connecting portion each running through the mounting bracket, the chassis, and the system fan. The exterior fan is secured to the chassis by fastening means each running through the exterior fan and one second connecting portion of the connecting members. | 01-26-2012 |
| 20120034085 | FAN ASSEMBLIES AND METHODS FOR ASSEMBLING SAME - In general terms, embodiments of the present invention relate to fan assemblies and methods for installing the same. For example, some embodiments of the present invention include a fan assembly that includes: (a) a rotational member; (b) a connection member structured for connection to the rotational member and including a body portion and a head portion; and (c) a blade arm defining an opening therein, such that the opening includes an open end portion and a closed end portion. In some embodiments, the connection member and the blade arm are configured such that, (a) when the blade arm is positioned in a support state, the head portion of the connection member rests against the blade arm to support the blade arm relative to the rotational member, and (b) when the blade arm is positioned in a secure state, the head portion of the connection member at least partially bears against the blade arm adjacent to the opening defined in the blade arm. Also, some of these embodiments of the present invention may be characterized as “easy install” fan assemblies because they include an “easy install” blade arm to motor connection, as described above, and/or an “easy install” blade arm to fan blade connection. | 02-09-2012 |
| 20120087796 | CEILING FAN - A ceiling fan having a motor for rotating a spider with the spider designed to support a plurality of blades for rotation. The spider having a plurality of outwardly extending arms with each blade secured at its root end to at least a pair of the arms. | 04-12-2012 |
| 20120099997 | Vertical Axis Wind Turbine - A vertical axis wind turbine comprising a main wind blade with one or more blade(s), at least one connecting arm, attached to main blade and an abutment of connecting arm arranged with axle hole of wind rotor shaft, wherein, a main blade is fixed with abutment of connecting arm through connecting arm to form an vertical axis wind turbine. | 04-26-2012 |
| 20120230828 | CYLINDRICAL WINDMILL FOR WIND POWER GENERATION - The cylindrical windmill for wind power generation includes: a support frame formed in a cylindrical shape around a rotational shaft; a plurality of wing fixtures protruded from the support frame; a plurality of wing fixing plates, each of which is fixed to the corresponding wing fixture and has elastic properties; and a plurality of wings, each of which is composed of an operating range installed in such a manner that the middle portion between the center and the tip of a wing is fixed to one side of the wing fixing plate to open or close a space that is formed between the wing fixture and the wing fixing plate, and an auxiliary operating range adapted to protrude outside the wing fixture when the space is opened by the operating range. | 09-13-2012 |
| 20120251326 | NOISE AND PERFORMANCE IMPROVED ROTOR BLADE FOR A HELICOPTER - A noise reduced and performance improved rotor blade ( | 10-04-2012 |
| 20130156585 | METHOD AND DEVICE FOR ELECTRICAL POWER GENERATION FROM WIND POWER AND METHOD OF MANUFACTURE THEREOF - A method and system are provided for converting wind power into electrical energy. One or more blades are attached by one or more struts to a vertical or central shaft, wherein each strut mechanically couples at least one of the blades to the shaft. One or more blades may be laminar. An optional method of fabricating a wind turbine blade, or fluid turbine blade, wherein the blade may be manufactured by a pultrusion process; may present a constant blade twist along a central axis of the blade itself; and/or may present a cross-section along the blade central axis. Alternatively or additionally, an airfoil is provided may be laminar and/or uncambered. According to a still additional optional aspect of the method of the present invention, a Darrieus-type vertical-axis wind turbine is provided, the turbine having a shaft that defines a rotation axis with a plurality of substantially rigid blades. | 06-20-2013 |
| 20130287577 | ROTOR-ARM ASSEMBLY AND A MULTI-ROTORCRAFT - Various embodiments provide a rotor-arm assembly for a multi-rotorcraft, the rotor-arm assembly comprising: a plurality of rotor-arms, each rotor-arm comprising a rotor assembly at a distal end portion and a body portion connector at a proximal end portion, the body portion connector having a screw thread; and a body portion comprising a plurality of rotor-arm connectors, each rotor-arm connector having a screw thread; wherein the screw-thread of each body portion connector is configured in use to engage with the screw-thread of one of the rotor-arm connectors to detachably attach each rotor-arm to the body portion. | 10-31-2013 |
| 20140099208 | VERTICAL AXIS WIND TURBINE WITH SELF-STARTING CAPABILITIES - A vertical axis wind turbine and vertical axis wind turbine assembly comprising a rotary body and a plurality of blades. A cross section through each blade of the plurality of blades transverse to the rotary axis comprises an inner camber line, an outer camber line, and a chord line. The outer camber line comprises a first portion, a transition portion and a second portion. The second portion is longer, in the lengthwise direction, than a combined length of the first portion and the transition portion. The average second portion thickness is less than half an average first portion thickness. A magnitude of an average rate of change in a transition portion thickness is at least twice a magnitude of an average rate of change in a first portion thickness, and a magnitude of an average rate of change in a second portion thickness. | 04-10-2014 |
| 20140105749 | PROPELLER OF A PULSED AIRFLOW GENERATOR, IN PARTICULAR FOR A PORTABLE BLOWER - A propeller of a pulsed airflow generator, in particular for a standalone portable blower, of the type made up of the assembly of two parts coaxially adjoining one another, i.e.: a first front part made as a single piece and comprising a plurality of twisted blades connected to a central ring, and a second rear part with a generally conical shape also made as a single piece, the central portion of said assembly having a conical shape and making up the rear portion of an air-inlet cone, said propeller being characterised in that said first and second rear parts are secured by a clamping device made up of a hub including two parts assembled coaxially and between which said two parts that make up the propeller are clamped, said hub being rotatably secured to the latter and maintaining said front and rear parts in the assembled position thereof. | 04-17-2014 |
| 20140286780 | AEROGENERATOR BLADE TIP SEGMENT AND METHOD OF ASSEMBLY - Provided is a method of assembling an aerogenerator blade tip segment. The method includes: removing an outboard tip end part of an aerogenerator blade; removing at least a portion of a leading edge panel and at least a portion of a trailing edge panel from a remaining outboard end of the aerogenerator blade, thus forming a body and a projection extending in a substantially longitudinal direction from an outboard end of the body, the projection having a spar cap portion and a shear web portion; removing a coating from an outer surface of the projection; attaching at least one reinforcement to the shear web portion of the projection; bonding a tip segment to the projection; and covering a joint between the body of the aerogenerator blade and the tip segment with an aerodynamic profile. | 09-25-2014 |
| 20140301854 | SECUREMENT SYSTEM AND METHOD FOR SECURING AN ATTACHMENT PORTION OF AT LEAST ONE ROTOR BLADE OR ROTOR BLADE SEGMENT IN A MOUNTING SITE OF A ROTOR BASE - A securement system for securing an attachment portion of at least one rotor blade or rotor blade segment in a mounting site of a rotor base. The securement system has at least one holder element and a second holder element, each of which has a holding portion and a connecting portion. The connecting portions can be introduced into the mounting site so as to establish a clip connection and can be locked together in the mounting site. The holding portions are configured so as to fasten the attachment portion of the at least one rotor blade or of the rotor blade segment in the mounting site in the locked state of the connecting portions. Further disclosed is a method for securing an attachment portion of at least one rotor blade or rotor blade segment in a mounting site of a rotor base and a rotor having a securement system. | 10-09-2014 |
| 20140377073 | SYSTEMS AND METHODS FOR BLADE ATTACHMENT - Systems and methods for blade attachment are proved. The systems and methods include an aircraft system having a rotor hub including a blade connector and a composite blade including a lug fitting assembly. The lug fitting assembly includes a fitting core including a lug fitting aperture, a lug bushing coupled within the lug fitting aperture, and an outer fitting substantially surrounding the fitting core. | 12-25-2014 |
| 20150010403 | AERODYNAMIC HUB ASSEMBLY FOR A WIND TURBINE - An aerodynamic hub assembly for a wind turbine is disclosed. The hub assembly may include a hub extension, a rotor blade having a blade root and a blade tip, and a hub airfoil section mounted at least partially over the hub extension. The hub airfoil section may be fixed relative to the rotor blade or may be configured to rotate about a common pitch axis with the rotor blade. The hub extension may be connected to and extend radially from a center of the hub assembly. Further, the hub assembly may include a pitch bearing having an inner race and an outer race, wherein the pitch bearing may be coupled between the hub extension and the blade root. Additionally, the hub assembly may also include an aerodynamically-shaped spinner, wherein the spinner may house at least a portion of a root structure extending radially from the center of the hub assembly. | 01-08-2015 |
| 20150078903 | QUICK INSTALLATION CEILING FAN BLADES - Devices, apparatus, systems, and methods for the quick installation of ceiling fan blades for ceiling fans. The invention uses a blade with three slots running in a linear direction from the mounting end of the blade, and three pre-attached fasteners upwardly projecting from the outer end of a blade arm. One of the fasteners is springably bendable with inwardly extending clip edge, another fastener that forms an upright post, and a third fastener having a top end with an outwardly extending lip edge. Another embodiment can include four slots per blade and four pre-attached upwardly protruding fasteners per blade arm. A novel method of installing each blade can include angling the blade to the mounting ends of the blade arm so that the outwardly extending lip edge catches on the third slot in from the mounting end of the blade. Next, the blade is laid down so that the other two slot openings pass over the other pre-attached fasteners while moving the mounting end of the blade toward the motor mounting end of the blade arm. This causes the springably bendable fastener to bend back and snapably spring back catching onto the first slot locking the blade to the blade arm. | 03-19-2015 |
| 20150110632 | BLADE ASSEMBLY FOR A WIND TURBINE ROTOR - A blade assembly for a wind turbine rotor is provided, the blade assembly comprising at least two blade sections ( | 04-23-2015 |
| 20130156584 | COMPRESSOR ROTOR WITH INTERNAL STIFFENING RING OF DISTINCT MATERIAL - A compressor rotor has a hub at a radially outer location, and a leg extending from an inner ring at a radially inner location to the hub. The hub has an inner bore at a location spaced from the leg. A stiffening ring is force fit into the inner bore of the hub. | 06-20-2013 |
| 20130202442 | FAN AND BOOST JOINT - A gas turbine engine having at least one spool assembly, the at least one spool assembly including a fan rotor, a compressor disposed downstream of the fan rotor, a turbine and a shaft connecting the fan rotor, compressor and turbine, a joint affixed to an upstream end of the shaft, and including a first link connecting the fan rotor to the shaft and a second link connecting the compressor to the shaft, the second link being less rigid then the first link. | 08-08-2013 |
