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Fluid reaction surfaces (i.e., impellers)

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
416223000 SPECIFIC BLADE STRUCTURE (E.G., SHAPE, MATERIAL, ETC.) 1893
416204000 SPECIFIC WORKING MEMBER MOUNT 842
416001000 METHOD OF OPERATION 836
416095000 WITH HEATING, COOLING OR THERMAL INSULATION MEANS 651
416179000 ROTOR HAVING FLOW CONFINING OR DEFLECTING WEB, SHROUD OR CONTINUOUS PASSAGE 382
416244000 SUPPORT MOUNTING, CARRIER OR FAIRING STRUCTURE 268
416147000 HAVING POSITIVE MEANS FOR IMPELLER ADJUSTMENT 231
416131000 ARTICULATED, RESILIENTLY MOUNTED OR SELF-SHIFTING IMPELLER OR WORKING MEMBER 161
416031000 WITH CONTROL MEANS RESPONSIVE TO NON-CYCLIC CONDITION SENSING, CENTRIFUGAL ACTUATION, TORQUE OR THRUST 159
416146000 COMBINED OR CONVERTIBLE 112
416170000 SPECIFIC DRIVE OR TRANSMISSION MEANS 107
416174000 HAVING LUBRICATING, SEALING, PACKING OR SPECIFIC BEARING MEANS BETWEEN IMPELLER OR SHAFT AND STATIC PART 106
416009000 WITH MEANS POSITIONING FLUID CURRENT DRIVEN IMPELLER RELATIVE TO FLOW DIRECTION 105
416144000 WITH WEIGHT-BALANCING MEANS 95
416061000 WITH MEASURING, TESTING, SIGNALLING OR INSPECTION MEANS 91
416098000 SUSTAINED ANCILLARY MOVEMENT OF ROTARY WORKING MEMBER (E.G., CYCLIC FEATHERING, ETC.) 88
416120000 PLURAL IMPELLERS HAVING RELATIVE MOVEMENT OR INDEPENDENT SUPPORTS 80
416090000 WITH FLUID PASSAGE IN WORKING MEMBER COMMUNICATING WITH WORKING FLUID 76
416023000 WITH MEANS MOVING WORKING FLUID DEFLECTING WORKING MEMBER PART DURING OPERATION (E.G., AILERON, ETC.) 64
416198000 MULTIPLE AXIALLY SPACED WORKING MEMBERS 47
416005000 WITH ILLUMINATION MEANS 33
416169000 HAVING CLUTCH OR BRAKE MEANS 30
416085000 FLOAT SUPPORTED 26
416194000 LASHING BETWEEN WORKING MEMBERS OR EXTERNAL BRACING 26
416197000 CUPPED REACTION SURFACE NORMAL TO ROTATION PLANE 24
416093000 AMBIENT FLUID OR EXHAUST GAS DIRECTED THROUGH HUB, FAIRING OR HOUSING 24
416087000 RADIALLY EXTENSIBLE OR RETRACTIBLE ROTOR WORKING MEMBER 24
416176000 SPIRAL BLADE OR FLOW PASSAGE (360 DEGREE) 22
416178000 PERIMETRIC BLADING EXTENDING AXIALLY BETWEEN ANNULAR MEMBERS (E.G., SQUIRREL CAGE TYPE, ETC.) 18
416248000 MISCELLANEOUS (E.G., BLADE ROOT OR ROOT BLOCK, ETC.) 17
416142000 WORKING MEMBER FOLDABLE, PIVOTABLE OR COLLAPSIBLE TO NON-USE POSITION 16
416069000 OPERATOR SUPPORTED MANUALLY ACTUATED TYPE 15
416062000 REMOVABLE AUXILIARY ATTACHMENT TO WORK SURFACE 15
416203000 UNSYMMETRICAL IMPELLER OR DISSIMILAR WORKING MEMBERS 13
416002000 HAVING FRANGIBLE OR FUSIBLE PART OR CONNECTION 12
416175000 DIVERSE IMPELLERS OR WORKING MEMBERS 10
416084000 BUOYANT OR INFLATABLE WORKING MEMBER 10
416247000 PROTECTIVE SCREEN OR GUARD 10
416003000 ACTUATION DIRECTLY RESPONSIVE TO MAGNETIC OR ELECTRICAL EFFECT 9
416020000 DRIVE BY FLUID REACTION JET ON WORKING MEMBER 8
416079000 OSCILLATORY REACTION MOTION 7
416007000 WORKING MEMBER SUPPORTED ON ENDLESS FLEXIBLE CARRIER 7
416054000 OPERATED BY ART DEVICE 6
416063000 AMBULANT, BODY SUPPORTED OR WITH CARRYING HANDLE 6
416025000 INTERRELATED CONTROLS FOR IMPELLER AND DRIVE MEANS 3
20110002783CEILING FAN - A ceiling fan comprising a motor which rotates a plurality of blades provided in a horizontal direction, a shaft projecting from an upper portion of the motor, a pipe which is connected to an upper end of the shaft and which hangs from a ceiling surface, a connecting rod for connecting the pipe and the shaft with each other via through holes formed in the pipe and the shaft, respectively, a female screw which is threadedly engaged with the connecting rod, a displacement-correspondence tool which is displaced or which detects a displacement amount in correspondence with a relative positional displacement amount between the shaft and the pipe, and a power source control tool which controls energization to the motor in accordance with the displacement of the displacement-correspondence tool or the detected displacement amount.01-06-2011
20110255969WIND TURBINE WITH CONTROL SYSTEM - The present invention relates to a wind turbine assembly comprising a turbine having turbine blades, said turbine being arranged to generate a rotational energy as the turbine blades are engaged by a wind, characterized in that said wind turbine assembly further comprises an emergency brake that is operationally connected to the turbine blades for pitching the turbine blades towards a rest position by the rotational energy of the turbine, when the emergency brake is activated.10-20-2011
20130243595Method to rotate the rotor of a wind turbine and means to use in this method - A direct driven wind turbine includes an electrical generator with a rotor and a stator, a hub for receiving a rotor blade, and actuator device. The hub is connected to the rotor of the electrical generator, and the hub and the rotor of the electrical generator are rotatable mounted in respect to the stator of the generator. The actuator device is constructed and arranged to rotate the hub of the wind turbine in respect to the stator of the electrical generator. The actuator device is the electrical generator, wherein the electrical generator of the wind turbine is used as a motor to rotate the hub of the wind turbine.09-19-2013
416006000 DRIVEN BY PULSATING OR DIVERSE WORKING FLUID 3
20150056076Floating Wind Farm - A floating wind farm having wind machines positioned on a generally V-shaped floating platform, the platform being tethered to an anchor such that the platform is free to be repositioned by the wind for optimum production. The wind machines power air compressors and the floating platform itself comprises large storage chambers to receive the compressed air, or storage chambers to receive liquefied air.02-26-2015
20150354543Floating Wind Turbine Structure - Floating wind turbine structure comprising a socket provided with one or more anchorings to the seabed to support one or more wind turbines connected to a driving motor or power generator. The wind turbine is arranged upon a substantially triangular floater device consisting of hollow pipes extending downwards into the sea at a mutual angle and increasing mutual distance in direction downwards. A hollow arc-shaped underpart/cross piece is arranged at the lower end of the floater device pipes. A strutting piece is arranged at the upper part of the floater device. The cross piece is partially filled by liquid and its internal is provided with a flow restricting plate which decelerates liquid flow from one end to the other of the cross piece during increasing and decreasing heeling.12-10-2015
20160003213Position-Controlled Wave Power Generating Apparatus - A position-controlled wave power generating apparatus. A position-controlled wave power generating apparatus is included a floating part floatable on a body of water, a motion conversion unit coupled to a floating part, a power generating unit generating electricity using a generator connected to a motion conversion unit, and a position control unit positioned below a water surface to generate a thrust from the energy of waves.01-07-2016
416064000 TRANSLATORY REACTION MOTION 3
20090246022FIRE FIGHTING PUMP AND ITS OPERATING METHODS - A fire fighting pump and operation thereof and a fire fighting system and a fire engine, wherein the pump includes a housing, a motor mounted inside the housing and two or more stages of series-connected impeller assemblies. A water inlet is provided on the housing between the motor and the impeller assemblies. The impeller assemblies are mounted on the impeller shaft coaxially and in series with each other. The impeller shaft is fixed on the motor shaft or is coaxial with the latter. The impeller assembly includes a thruster, an impeller, an end cover and a retaining ring on the periphery of the thruster and the impeller, and those four elements are installed in turn. Several first blades are provided in the thruster and several second blades which correspond with the first blades in amount and location are provided in the impeller.10-01-2009
20130052014SPINNAKER SAILS FROM INTERWOVEN STRAPS FOR GENERATING ELECTRIC POWER FROM WIND - New types of “airborne spinnaker sails” are disclosed, made from high-strength straps that are interwoven in a manner that preserves open space between them. These devices, referred to as “webbing sails” or simply “web sails”, are designed for use in conjunction with buoyant lifting devices, to capture and harvest wind energy in a way which will generate large mechanical pulling forces, which can be used to drive electric power generators. These types of web sails are designed to operate in winds that exceed 100 or even 150 miles per hour.02-28-2013
20140193258SWING FAN STRUCTURE - A swing fan structure includes a main body and multiple blades. The main body has an upper face and a lower face. The main body also has a long side and a short side. The blades are side by side disposed on the upper face of the main body in parallel to each other. The blades define therebetween a flow way. The blades are drivable by the main body to reciprocally move along the long side to create an air volume. The swing fan structure has a greatly minified volume. Also, the swing fan structure overcomes the shortcoming of unstable operation of the conventional fan caused by deflection of the blades in rotation.07-10-2014
416078000 CRANK TYPE DIPPING OR STIRRING MOTION 2
20140271195Boat rowign device - A boat rowing device is disclosed. The device comprises a driving gear secured to a plate. A driven gear is secured with the plate such that to receive rotational movement from the driving gear. A handle is secured with the driving gear to rotate the driving gear. An oar is secured with the driven gear such that to facilitate rowing of the boat.09-18-2014
20140328682PROPULSION DEVICE FOR USE WITH A FLUID - In one embodiment, a propulsion device for use with a fluid may include a shaft coupled to a drive system that rotates the shaft, one or more cranks rigidly coupled to the shaft, and one or more connecting structures that are movably coupled to one of the one or more cranks. A foil may be rigidly coupled to the one or more connecting structures. One or more slide structures or one or more linkages may be coupled to the foil and arranged to restrain movement of the foil when the foil is actuated by the one or more cranks via the one or more connecting structures, such that rotational motion of the shaft is translated to a combination of motion of the foil between an inner extent and an outer extent and motion of the foil within an angular range between first and second limits.11-06-2014
416202000 PROJECTING BLADE AXIS OFFSET FROM ROTATION AXIS 2
20110262276VERTICAL AXIS WIND TURBINE - A vertical axis wind turbine includes an upstanding support structure, a plurality of generators disposed on the support structure, a central shaft in rotatable communication with the generators and positioned along a central axis of the vertical-axis wind turbine, a plurality of struts extending from the central shaft, and a plurality of blades, each blade positioned at an end of a corresponding strut and oriented substantially vertically. The vertical axis wind turbine optionally includes strut ailerons, blade extension elements, or blade ailerons to increase the efficiency and duty cycle of the wind turbine.10-27-2011
20130094967VERTICAL AXIS WIND TURBINE SYSTEM - A vertical axis wind turbine system is revealed. Two vertical axis wind supply units are arranged beside a support rod and between an upper and a lower connection plates. The vertical axis wind supply unit includes blades around a rotor shaft. Each blade includes a blade body and valves. The blade body is a helical plate having a plurality of crossed barriers and insertion holes among barriers. Moreover, the valves are fixed on an upwind surface of the blade body and an upper side of the valve is connected to the blade body. Each valve is corresponding to at least one insertion hole. Each of the two rotor shafts are connected to a generator set by a transmission set. When wind turns the blades, each blade spin the rotor shaft and the transmission set transfers energy generated by the rotating blades to the generator set for conversion to electrical power.04-18-2013
416004000 ROTARY SKIN FRICTION TYPE (E.G., MAGNUS ROTOR, ETC.) 2
20110318179WIND TURBINE AND METHOD OF OPERATING SAME - A turbine blade assembly (12-29-2011
20130302164MAGNUS ROTOR WITH BALANCING WEIGHTS AND METHOD FOR BALANCING A BODY OF REVOLUTION - The invention relates to a Magnus rotor comprising a cylindrical body of revolution for converting wind power into a feed force using the Magnus effect. The Magnus rotor comprises: a rotational shaft about which the body of revolution rotates; a support member on which the body of revolution is mounted; and a body of revolution which has means for the reinforcement thereof. The body of revolution is primed in at least two planes arranged at a mutual spacing in the axial direction perpendicular to the rotational shaft of the body of revolution in order to accommodate balancing weights. The invention further relates to a method for balancing a body of revolution according to the invention.11-14-2013
416500000 VIBRATION DAMPING FEATURES 1
20110033310ELECTROMAGNETIC INERTIAL ACTUATOR - An electromagnetic inertial actuator includes a support base and a parallel arrangement of a first flexure part, a voice coil motor part, and a second flexure part. The parallel arrangement is cantilevered from the support base.02-10-2011
416019000 SINGLE BLADE ROTARY IMPELLER WITH COUNTERBALANCE 1
20100278646Fan, especially a ceiling fan with a balanced single blade - Described is a fan with a blade suitable for use as a ceiling fan. The blade may be regarded as a single blade, although shaft is not attached to blade at one end thereof; rather, shaft is attached to blade at a point between first end and second end. Blade is balanced by counterweights located in blade. In one embodiment, blade is connected to shaft by means that permit angular movement, such as a teeter hinge.11-04-2010

Patent applications in class Fluid reaction surfaces (i.e., impellers)

Patent applications in all subclasses Fluid reaction surfaces (i.e., impellers)

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