| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 092005000 | WITH (1) SIGNAL OR INDICATOR OR (2) INSPECTION WINDOW IN EXPANSIBLE CHAMBER WALL PORTION | 45 |
| 20080257143 | METHODS AND APPARATUS FOR A FLUID OR SLURRY PUMP PISTON - A method and apparatus for a reciprocating pump, specifically, a single acting fluid or slurry pump piston. The piston assembly includes a reserve seal that is operable and adapted to maintain a pump operation in the event of a primary piston seal failure. The reserve seal allows the communication of the primary piston seal failure to a pump operator or worker so that they may take timely remedial measures, thereby avoiding the numerous consequences of a complete piston failure. The piston assembly includes an indicator that is adapted to communicate to the pump operator or worker that the primary piston seal has failed. | 10-23-2008 |
| 20090025551 | MOUNTING MECHANISM FOR A POSITION-DETECTING SENSOR - A position-detecting sensor to which a mounting mechanism for a position-detecting sensor is applied is equipped with a holder capable of accommodating a sensor element in which a magnetic sensor or the like is disposed, and includes a flange on a lower end of the holder, which is inserted through a sensor mounting groove of a cylinder apparatus. The flange is formed in a plate shape, having a narrow portion and a widened portion that differ in width dimension. After insertion thereof through the sensor mounting groove such that side surfaces of the narrow portion are made parallel with the sensor mounting groove, the holder is turned, whereby the widened portion engages within and is retained respectively by a pair of recess portions in the sensor mounting groove. | 01-29-2009 |
| 20090090239 | FLUID ACTUATOR - A fluid actuator for mechanical components in general comprises at least one piston ( | 04-09-2009 |
| 20090288554 | INTEGRATED MAGNETOSTRICTIVE LINEAR DISPLACEMENT TRANSDUCER AND LIMIT SWITCH FOR AN ACTUATOR - The present invention relates to a position sensor and limit switch apparatus for an actuator. The actuator has a cylinder and a piston with at least one magnetized portion reciprocatingly disposed within the cylinder. The apparatus includes an elongate housing aligned parallel with the cylinder. A magnetostrictive linear displacement transducer is disposed within the housing for sensing the position of the at least one magnetized portion. The apparatus includes a switch means responsive to the transducer for operatively interrupting actuation of the piston upon the at least one magnetized portion reaching a limit position. | 11-26-2009 |
| 20100011954 | Actuator with Position Sensing Device - The invention relates to an actuator, in particular pneumatic cylinder, with an actuator element movably located in a movement space of a housing and with a microwave position sensing device for detecting the position of the actuator element in the movement space, with a microwave aerial arrangement for the transmission of microwaves into the movement space forming a waveguide and for the reception of reflection microwaves generated by the reflection of the transmitted microwaves at the actuator element from the movement space, and with evaluation means for the generation of a position signal representing the current position of the actuator element from the reflection microwaves. In the actuator, it is provided that the actuator element has a groove arrangement with at least one groove for reflecting the microwaves. | 01-21-2010 |
| 20100024638 | Adjusting Element - An adjusting element with a closed first end, a cylinder, a piston displaceably arranged in the cylinder that divides the cylinder into a first work space remote of the first end and a second work space in proximity to the first end, and a piston rod which is arranged at one side of the piston and which projects through the first work space and is guided out of the cylinder concentric to or center longitudinal axis of the cylinder at a second end opposite from the first end so as to be sealed by a guiding and sealing device. The adjusting element has a device for detecting the piston rod position and/or the extended length of the adjusting element. The device for detecting the piston rod position includes a microswitch arranged at the cylinder and at least one switching element cooperating with the microswitch. | 02-04-2010 |
| 20100050863 | FLUID-POWERED ACTUATOR HAVING AN INTERNAL POSITION SENSOR AND A SENSOR MODULE THEREFOR - A fluid-powered actuator comprises a cylindrical body having a base proximate one extremity and a head proximate another extremity, a piston-rod assembly and a sensor module made of a removable cover and a position sensor. The piston-rod assembly is slidably mounted inside the cylindrical body. The base is provided with an opening adapted to accommodate the sensor therethrough. In operation, the cover seals the opening. The position sensor is mounted to an internal face of the cover so that the position sensor is operatively located inside the cylindrical body when the cover is in place. The position sensor is operative to measure a position of the piston-rod assembly. A sensor module adapted to sealably close the opening in the base comprises the position sensor mounted to an internal face of a cover structure. In operation, the position sensor is operatively located inside the actuator when the cover structure closes the opening. | 03-04-2010 |
| 20100050864 | Piston-Cylinder Unit - The present invention relates to a piston-cylinder unit with a piston with adjoining piston rod, which is movably mounted in a cylinder, wherein the piston and the piston rod have a cavity into which at least one rod protrudes, by means of which an electrically conductive connection can be made directly or indirectly. | 03-04-2010 |
| 20100095840 | HYDRAULIC CYLINDER ROD POSITION SENSOR - A fluid pressure cylinder assembly has a sensor to provide a signal indicating the amount of extension of a piston rod from the cylinder. The sensor includes a sleeve that is fixed relative to a base of the cylinder and passes into a longitudinal bore in the piston rod, and the piston rod carries a sensor core that is in the bore and is secured to the piston rod at an end opposite from a piston on the rod. The core slides on the interior of the sensor sleeve. A connection is provided to the sensor sleeve such that as the core moves relative to the sensor sleeve a signal indicating the amount of movement and the relative position of the cylinder base and the piston rod is provided. | 04-22-2010 |
| 20100107869 | ADJUSTABLE CYLINDER POSITION SENSOR - A device for detecting the absolute position of a cylinder rod is provided. A cylinder assembly has a cylinder body with a gland member positioned thereof. The gland member has a rod opening extending therethrough. An adjustable sensor is mounted on the gland member, the adjustable sensor being operable to read one or more detectable features of the cylinder rod. The adjustable sensor can be incrementally adjusted relative to the cylinder rod to optimize the gap provided between the adjustable sensor and the cylinder rod, allowing the sensor to detect the motion and absolute position of the cylinder rod. The detectable features may be three tracks of data including first timing data and position data. | 05-06-2010 |
| 20100269690 | Spring-Loaded Brake Cylinder Having Locked Stop Body - A spring-loaded brake cylinder for commercial vehicles includes at least one spring-loaded brake piston that can be actuated by a pre-loaded spring and is supported in a housing. A mechanical emergency release device is provided for the emergency release of the spring-loaded brake cylinder. The emergency release device includes an indicator that has an indicator rod indicating the position of the spring-loaded brake piston. The rod extends through a threaded spindle of the emergency release device and is movable in the axial direction. A stop body is disposed in the region of one end of the indicator rod. The stop body is positively connected to the indicator rod by a detent connection produced by an axial relative movement between the indicator rod and the stop body. | 10-28-2010 |
| 20110005387 | Piston-Cylinder Unit - A piston-cylinder unit with a center longitudinal axis, a first end, a cylinder filled with a fluid, a piston arranged so as to be displaceable in the cylinder and which divides the cylinder into a first work space remote of the first end and a second work space close to the first end. A piston rod is arranged at the piston and projects through the first work space and is guided out of the cylinder concentric to the center longitudinal axis at a second end opposite the first end so as to be sealed by a guiding and sealing device, and a sensor device for direct or indirect detection of the internal pressure of the piston-cylinder unit. | 01-13-2011 |
| 20110067565 | Method of using a band sensor for determining a position inside a container - In order to detect the position of a piston, e.g. in a piston accumulator, without a run out of electrical cables etc. from the pressure loaded cylinder, the mechanical portion of the band sensor is disposed in the interior of the piston accumulator and a magnet driven in rotation by the winding drum is scanned contactless through a magnetically permeable wall portion from the outside through an angle sensor with respect to a rotation position of the magnet. | 03-24-2011 |
| 20110072964 | SYSTEM FOR ACQUIRING, MEASURING AND CHECKING THE OPERATING PARAMETERS OF A RECIPROCATING FLUID MACHINE - The invention describes a validation system for a reciprocating fluid machine. The system comprises a base plate or foundation on which at least one frame of the reciprocating fluid machine is removably applied; a first shaft, rotatably coupled with the base plate, to activate the components of the frame; at least one system for generating loads, placed in operative connection with such components and put in rotation by a transmission system through at least one second shaft. The system for generating loads is able to simulate the loads generated by the working fluid on a cylinder of the reciprocating fluid machine. | 03-31-2011 |
| 20110083553 | Hydraulic machine - A hydraulic machine having a variable intake volume/pump capacity includes working spaces ( | 04-14-2011 |
| 20110120300 | Linear Actuator and Position Sensing Apparatus Therefor - A linear actuator such as a hydraulic cylinder has linear position sensing apparatus. At least one magnet is provided in a recess in outer surface of the piston for generating a magnetic field that passes through the wall of the cylinder housing. A magnetic sensor arrangement determines the axial position of the piston relative to the housing and comprises at least a pair of magnetic sensor elements arranged at spaced apart locations along the external surface of the wall for sensing the strength of the magnetic field passing through the wall of the housing. The recess in the piston is axially positioned between the first and second end surfaces of the piston and the at least one magnet is disposed between axially spaced north and south pole pieces. | 05-26-2011 |
| 20110126703 | FLUID PRESSURE CYLINDER WITH POSITION DETECTING DEVICE - An elongated attachment hole is formed on a housing containing a magnetic sensor, a thin plate-like hole cover is placed on the housing to cover the elongated attachment hole, a single attachment bolt is disposed in such a manner as to go through the hole cover and the elongated attachment hole, and the attachment bolt is screwed in a screw hole of a cylinder body, thereby fixation of the housing on the cylinder body and fixation of the hole cover on the housing are performed at the same time by using the single attachment bolt. | 06-02-2011 |
| 20110162522 | APPARATUS DRIVEN BY COMPRESSED AIR AND EQUIPPED WITH DUAL PISTON FUNCTION FOR USE IN BODY CONSTRUCTION IN THE AUTOMOTIVE INDUSTRY - The invention relates to an energy-efficient apparatus driven by compressed air and equipped with a dual piston function for tensioning, or clamping, or centering, or punching, or welding, or clinching, for use in body construction in the automotive industry. The apparatus is driven by a pressurized fluid, in particular by compressed air. It is shown how a significant amount of operating costs can be saved while, at the same time, conserving the environment and consuming a low amount of pressurized fluid, in particular compressed air. In addition, the pivoting angle of a toggle joint assembly and thus of an apparatus connected thereto, for example, a tensioning arm of a toggle tensioning apparatus, can be continuously adjusted in both directions while, at the same time, adjusting a sampling device using sensors, for example, microswitches, or inductive switches, or pneumatic switches, or limit switches. | 07-07-2011 |
| 20120017758 | PRESSURE CYLINDER WITH OIL STORING FUNCTION - A pressure cylinder includes a first cylinder body having accommodated therein a piston. a second cylinder body defining therein a first passage vertically connected to the first cylinder body, an oil storage chamber vertically connected to the first passage, a second passage vertically connected to the oil storage chamber and a pressure chamber vertically connected to the second passage and having a cross-sectional area smaller than the oil storage chamber, and a piston rod inserted through the first passage of the second cylinder body in an airtight manner and having its one end connected to the piston and its other end movable by the piston between a first position in the oil storage chamber and a second position in the pressure chamber to add a pressure to the hydraulic oil in the pressure chamber and to let the hydraulic oil in the oil storage chamber be supplied to the pressure chamber to make up any hydraulic oil loss, maintaining the output. | 01-26-2012 |
| 20120097026 | Piston Pump With Leak Diagnostic Port - Described are embodiments of a pump having a diagnostic port that enables users and support personnel to diagnose the source of a pump leak. The diagnostic port is monitored visually or with a pressure or liquid detection sensor. In some embodiments, fluid detected at the diagnostic port corresponds to a leak around a circumference defined at an outer sealing surface of a high pressure seal. In other embodiments, fluid detected at the diagnostic port corresponds to a leak around a plunger at the inside diameter of the high pressure seal. Multiple diagnostic ports can be provided to allow separate determinations of leaks about the different portions of the high pressure seal. The embodiments may eliminate the need to disassemble the pump to determine the source of leaks. Thus the effort required to diagnose and repair the pump can be substantially reduced, and fewer misdiagnosed components are ordered or replaced. | 04-26-2012 |
| 20120125193 | PRESSURE TRANSFER MEANS AND PRESSURE MEASURING TRANSDUCER WITH A PRESSURE TRANSFER MEANS - A pressure transfer device comprises a hydraulic path, which is formed by a duct, which extends through a solid body arrangement from a pressure source to a pressure sink, wherein the pressure source comprises a separating diaphragm chamber, which communicates with the duct, and which is sealed with a flexible isolating diaphragm, wherein the isolating diaphragm is contactable with a pressure to be transferred, wherein the pressure sink comprises a sealed sink chamber, which communicates with the duct, wherein the separating diaphragm chamber, the duct and the pressure sink chamber are filled with a pressure transfer liquid, wherein the pressure transfer liquid has according to the invention a magnetically changeable viscosity, and wherein the pressure transfer means further comprises in at least one section of the hydraulic path at least one magnet for influencing the viscosity of the pressure transfer liquid. | 05-24-2012 |
| 20120174771 | PISTON-CYLINDER UNIT WITH DEVICE FOR DETERMINING POSITION - The present disclosure relates to a piston-cylinder unit with a device for determining position, the device comprising at least one exciter that is indirectly or directly electrically connected with the cylinder jacket and the cylinder piston of the piston-cylinder unit, and that excites the electrical oscillating circuit formed by the piston-cylinder unit and the contact lines to oscillate at its resonant frequency, it being possible to measure an electrical signal characterizing the resonant frequency on the piston-cylinder unit. The invention also relates to a construction machine or piece of hoisting equipment with such a piston-cylinder unit. | 07-12-2012 |
| 20120180654 | Piston and Cylinder Assembly with an Indicator Pin Device - An indicator device for a piston and cylinder assembly has an indicator pin with a distal end indicator section for extending out of a side wall of a piston cylinder assembly when the piston and rod assembly is not at the end of its return stroke. A retracting device retracts the indicator pin when the piston and rod assembly moves to the end of its return stroke and has an optional internal lock that mechanically axially affixes the piston and rod assembly. | 07-19-2012 |
| 20120186445 | Hydraulic Device - The invention relates to a hydraulic device comprising an autonomous electronic sensor assembly that has at least one miniature sensing element. Sensing elements of this type require a minimal amount of space. It is especially preferred if the sensor assembly has at least one miniature transmitter. As the hydraulic device does not then require any sensitive electric cables for signal transmission, the reliability of its monitoring capabilities is optimised. | 07-26-2012 |
| 20130125744 | PROXIMITY SWITCH ACTUATION MECHANISM - An actuation mechanism for an electromagnetic switch for a hydraulic cylinder includes a housing adapted to be inserted into a cylinder head. A rod is slidably engaged in the housing and is adapted to move between a first position and a second position. A biasing element, which may be located inside or outside of the housing biases the rod into the first position. | 05-23-2013 |
| 20130263733 | POSITION DETECTING DEVICE FOR FLUID PRESSURE CYLINDER - A sensor holding member holding a position sensor and an attachment member that attaches the sensor holding member to a cylinder tube are formed separately. The sensor holding member is placed with a sensor attachment groove oriented in the direction of the axis of the cylinder tube and in contact with the outer surface of the cylinder tube. The attachment member is placed so as to straddle the sensor holding member. By tightening an attachment screw and fixing the attachment member with an attachment band, the sensor holding member is pressed against and fixed to the outer surface of the cylinder tube by the attachment member. Loosening the attachment screw allows the sensor holding member to be displaced relative to the attachment member in the direction of the axis of the cylinder tube. | 10-10-2013 |
| 20130312601 | SENSOR COUPLER FOR PISTON-CYLINDER ASSEMBLY - A sensor coupler adapted to operatively connect a sensor to a piston-cylinder assembly. The sensor coupler includes a first end member and a second end member. The first end member is disposed on a port of the piston-cylinder assembly, in communication with the sensor, and the second end member is disposed in a cylinder chamber of the piston-cylinder assembly. Further, one or more cables are extending between the first end member and the second end member. The one or more cables are configured to transmit signals indicative of a position of a piston in the piston-cylinder assembly to the sensor. The sensor coupler further includes a biasing member to connect the first end member and the second end member. | 11-28-2013 |
| 20130319223 | OPTICAL SENSOR ENCLOSURE WITH INTEGRAL WINDOW AND OPTICAL ALIGNMENT FEATURES - An enclosure for a position sensor includes a housing and a lower Cassette that cooperate to provide a sealed volume in which a sensor assembly is enclosed and protected. The sensor assembly includes a light source and a light detector. The sensor assembly further includes a light pipe that guides light from the light source onto a target and a lens that guides reflected light from the target onto the light detector. The lower cassette is transparent to the light produced by the light source and includes an integral window through which the light enters and exits the lower cassette. An upper cassette supports an upper portion of the light pipe and the lens. A recess adjacent the window supports a lower portion of the light pipe and the lens in the lower cassette, and the upper cassette is received in a receptacle formed inside the lower cassette. | 12-05-2013 |
| 20130319224 | FLOATING OPTICAL SENSOR MOUNT - A piston-cylinder actuator includes a unique mount for an absolute-position sensor. The mount is made from a bearing material provides a flexible connection between the sensor mount and the cylinder housing. This flexible connection allows the piston rod to deflect naturally, under its own weight or under other laterally-directed forces, while maintaining the distance and perpendicularity between the sensor and the rod surface, within acceptable limits. The sensor mount is made from a bearing material that will allow it to float directly on the rod surface without scuffing or otherwise damaging the rod surface, particularly the markings or other indicia on that surface. Due to the flexible connection between the sensor mount and the cylinder housing, the proper distance between the sensor and the rod surface can be maintained at all times. | 12-05-2013 |
| 20140144316 | Method and Device for Activating an Actuator Element in a Motor System for a Motor Vehicle - The disclosure relates to a method for operating a positioning actuator system with an electronically commutated actuator drive for driving an actuator element, having the following steps: non-volatile storage of a position information item of the actuator element or of a rotor of the actuator drive which was detected last as a reference position before the positioning actuator system is switched off; in the case of switching on of the positioning actuator system retrieval of the reference position and actuation of the actuator drive by energizing the actuator drive in accordance with a space phasor which is dependent on the reference position. The object is to make available an improved method for releasing blockage of an actuator element or actuation after activation of a motor system with a maximum actuating torque. For positioning actuators with commutated motors such as, for example, synchronous motors. | 05-29-2014 |
| 20140260962 | SLIDING PISTON PRESSURE INDICATOR - A fluid pressure indicating device is disclosed. The pressure indicating device includes a housing defining a cylindrical bore therein, and a piston movably disposed within the cylindrical bore. The housing includes a first portion that is permeable to visible light, a first end member, and a second end member opposite the first end member. A first variable volume is defined by the cylindrical bore, the piston, and the first end member of the housing. An inlet port is defined by the first end member of the housing and is in fluid communication with the first variable volume. A piston bypass channel is disposed outside the cylindrical bore and is in fluid communication with the inlet port. An outlet port is defined by the second end member, such that the outlet port is in fluid communication with the piston bypass channel. | 09-18-2014 |
| 20140360360 | METHOD FOR DETERMINING A POSITION OF A PISTON IN A PISTON PRESSURE ACCUMULATOR BY MEANS OF INDUCTIVE SENSORS AND SUITABLY DESIGNED PISTON PRESSURE ACCUMULATOR - The invention relates to a piston accumulator ( | 12-11-2014 |
| 20150096440 | POSITION SENSOR ASSEMBLY IN A HYDRAULIC CYLINDER - A position sensor assembly for the hydraulic cylinder having a piston and piston rod is provided. The position sensor assembly includes a pressure to electric energy convertor, a transmitter and a receiver. The pressure to electric energy convertor is disposed inside the piston. The pressure to electric energy convertor is configured to determine pressures on both the sides of the piston and convert the determined pressure difference into electric current. The electric current is consumed by the transmitter and hence, the transmitter generates a signal. The signal is wirelessly transmitted to the receiver through the hydraulic cylinder. The receiver disposed on the hydraulic cylinder receives the signal through various components of the hydraulic cylinder. The signal is used to determine the position of the piston. | 04-09-2015 |
| 20150114220 | PISTON-CYLINDER UNIT WITH EVALUATION UNIT FOR DETERMINING THE PISTON POSITION - The present disclosure relates to a piston-cylinder unit with a cylinder jacket and a piston rod longitudinally shiftably guided in the cylinder jacket as well as an evaluation unit which determines the position of the piston rod with respect to the cylinder jacket by the intrinsic electrical properties of an interconnection of cylinder jacket, piston rod and piston, wherein the piston rod is short-circuited against the cylinder or the cylinder head in a manner suitable for high frequencies via one or more contact elements in the region of the exit opening of the piston rod out of the cylinder head. | 04-30-2015 |
| 20150316082 | DEVICE FOR GENERATING A MAGNETIC FIELD ASSOCIABLE WITH A MOVABLE ROD OF A PNEUMATIC ACTUATOR AND METHOD FOR MAKING THE DEVICE | 11-05-2015 |
| 20150316393 | METHOD FOR MAKING A DETECTION DEVICE FOR DETECTING THE POSITION OF A MOVABLE ROD OF A PNEUMATIC ACTUATOR AND DETECTION DEVICE OBTAINABLE WITH THAT METHOD - A method for making a detection device ( | 11-05-2015 |
| 20150337874 | PNEUMATIC SENSING ACTUATOR - A pneumatic artificial muscle (PAM) actuator body can be formed from an elastic material that includes an inflatable chamber and a restraining component, such as flexible, but inextensible fibers, that causes the actuator to contract when the chamber is inflated with fluid (e.g., air or water). The actuator body can be cylindrical or flat. The actuator body can include a sensor layer formed of an elastic material including a microchannel filled with a conductive fluid to sense the expansion of the actuator body. The sensor layer can be configured to expand when the actuator body is inflated causing the electrical resistance of the conductive fluid to change. A sensor layer between the actuator body and restraining component can be used to measure changes in the contraction force of the actuator and a sensor layer outside of the restraining component can be used to measure changes in the length of the actuator. | 11-26-2015 |
| 20150377263 | Method for Producing a Component Comprising a Position Measuring System - A piston rod defining a surface and including a structure on the surface configured to be traced by a position sensor during a stroke of the piston rod. The surface, and consequently the structure, are covered by a coating by buildup welding. The structure is produced in the same operation during the buildup welding of the coating. The entire structure may be formed by the buildup welding, or a coded basic profile is incorporated before the buildup welding. | 12-31-2015 |
| 20160097408 | CYLINDER POSITION DETERMINATION USING FIBER OPTIC SHAPE SENSING - A system for determining the stroke of a hydraulic cylinder is provided. The hydraulic cylinder includes a barrel with a rod that slidably extends therefrom. A fiber optic shape sensing system is positioned to determine the stroke of the rod relative to the barrel. An interrogation module is fixed to a reference frame. A fiber bundle is joined to the interrogation module at a proximal end and a fiber termination at a distal end, which is joined to the connecting end of the rod. A signal conditioning module connected to the interrogation module is configured to compute the location of at least one position of the fiber bundle relative to the reference frame; and provide an output indicative of the stroke of the connecting end relative to the barrel. | 04-07-2016 |
| 20160097409 | ADAPTER ASSEMBLY FOR AN INFLATING DEVICE - An adapter assembly for an inflating device has a case body and a warning unit. The case body has a first chamber and a second chamber. The first chamber and the second chamber are formed in the case body and communicate with each other. The warning unit is mounted in the second chamber and has a selective module, multiple adjusting modules, a sounding body, and a cover body. The selective module is mounted in the second chamber and has multiple accommodating portions formed in the selective module. One of the accommodating portions communicates with the second chamber. The adjusting modules are respectively mounted in and communicate with the accommodating portions. The sounding body is mounted on the selective module and communicates with the accommodating portions. The cover body is mounted on the selective module, and has a least one sound hole communicating with the sounding body. | 04-07-2016 |
| 20160131164 | System and Method for Estimating Health and Remaining Useful Life of a Hydraulic Element - A method for estimating health and remaining useful life of a hydraulic element of a machine is provided. The method includes determining a charge time of a hydraulic accumulator coupled to the hydraulic element in which a current pressure of a hydraulic fluid in the hydraulic accumulator reaches an upper threshold pressure, the current pressure being measured by a hydraulic accumulator pressure sensor coupled to the processor and the hydraulic accumulator. The method includes determining a discharging flow rate of the hydraulic element based upon the determined charge time of the hydraulic accumulator, a health indicator of the hydraulic element based upon a difference between the discharging flow rate and a stored discharging flow rate. The method includes determining a remaining useful life of the hydraulic element based upon the health indicator of the hydraulic element. | 05-12-2016 |
| 20160177981 | CYLINDER-PISTON UNIT AND METHOD OF DETECTING CONTINUOUSLY THE RECIPROCAL POSITION BETWEEN CYLINDER AND PISTON OF SUCH UNIT | 06-23-2016 |
| 20160177982 | FLUID PRESSURE CYLINDER | 06-23-2016 |
| 20160177983 | PACKAGING MACHINE WITH HYGIENIC PNEUMATIC CYLINDER | 06-23-2016 |
| 20120067204 | ACTUATING MECHANISM FOR FLUID DISPLACEMENT AND PRESSURIZING DEVICE - A fluid displacement device, particularly for use of the device to pressurize balloon catheters, or the like. The device includes a plunger which is displaceable through a housing, and an actuating mechanism which engages the plunger. The actuating mechanism includes a nut member that is biased into engagement with a threaded portion of the plunger. The device has a press-to-release feature wherein the plunger is instantly releaseable by simply depressing a control surface to overcome a restorative spring force. Subsequently, the plunger can be translated using macro movements (i.e., by pushing or pulling the plunger). | 03-22-2012 |
| 092005000 | With lock | 1 |
| 20080257143 | METHODS AND APPARATUS FOR A FLUID OR SLURRY PUMP PISTON - A method and apparatus for a reciprocating pump, specifically, a single acting fluid or slurry pump piston. The piston assembly includes a reserve seal that is operable and adapted to maintain a pump operation in the event of a primary piston seal failure. The reserve seal allows the communication of the primary piston seal failure to a pump operator or worker so that they may take timely remedial measures, thereby avoiding the numerous consequences of a complete piston failure. The piston assembly includes an indicator that is adapted to communicate to the pump operator or worker that the primary piston seal has failed. | 10-23-2008 |
| 20090025551 | MOUNTING MECHANISM FOR A POSITION-DETECTING SENSOR - A position-detecting sensor to which a mounting mechanism for a position-detecting sensor is applied is equipped with a holder capable of accommodating a sensor element in which a magnetic sensor or the like is disposed, and includes a flange on a lower end of the holder, which is inserted through a sensor mounting groove of a cylinder apparatus. The flange is formed in a plate shape, having a narrow portion and a widened portion that differ in width dimension. After insertion thereof through the sensor mounting groove such that side surfaces of the narrow portion are made parallel with the sensor mounting groove, the holder is turned, whereby the widened portion engages within and is retained respectively by a pair of recess portions in the sensor mounting groove. | 01-29-2009 |
| 20090090239 | FLUID ACTUATOR - A fluid actuator for mechanical components in general comprises at least one piston ( | 04-09-2009 |
| 20090288554 | INTEGRATED MAGNETOSTRICTIVE LINEAR DISPLACEMENT TRANSDUCER AND LIMIT SWITCH FOR AN ACTUATOR - The present invention relates to a position sensor and limit switch apparatus for an actuator. The actuator has a cylinder and a piston with at least one magnetized portion reciprocatingly disposed within the cylinder. The apparatus includes an elongate housing aligned parallel with the cylinder. A magnetostrictive linear displacement transducer is disposed within the housing for sensing the position of the at least one magnetized portion. The apparatus includes a switch means responsive to the transducer for operatively interrupting actuation of the piston upon the at least one magnetized portion reaching a limit position. | 11-26-2009 |
| 20100011954 | Actuator with Position Sensing Device - The invention relates to an actuator, in particular pneumatic cylinder, with an actuator element movably located in a movement space of a housing and with a microwave position sensing device for detecting the position of the actuator element in the movement space, with a microwave aerial arrangement for the transmission of microwaves into the movement space forming a waveguide and for the reception of reflection microwaves generated by the reflection of the transmitted microwaves at the actuator element from the movement space, and with evaluation means for the generation of a position signal representing the current position of the actuator element from the reflection microwaves. In the actuator, it is provided that the actuator element has a groove arrangement with at least one groove for reflecting the microwaves. | 01-21-2010 |
| 20100024638 | Adjusting Element - An adjusting element with a closed first end, a cylinder, a piston displaceably arranged in the cylinder that divides the cylinder into a first work space remote of the first end and a second work space in proximity to the first end, and a piston rod which is arranged at one side of the piston and which projects through the first work space and is guided out of the cylinder concentric to or center longitudinal axis of the cylinder at a second end opposite from the first end so as to be sealed by a guiding and sealing device. The adjusting element has a device for detecting the piston rod position and/or the extended length of the adjusting element. The device for detecting the piston rod position includes a microswitch arranged at the cylinder and at least one switching element cooperating with the microswitch. | 02-04-2010 |
| 20100050863 | FLUID-POWERED ACTUATOR HAVING AN INTERNAL POSITION SENSOR AND A SENSOR MODULE THEREFOR - A fluid-powered actuator comprises a cylindrical body having a base proximate one extremity and a head proximate another extremity, a piston-rod assembly and a sensor module made of a removable cover and a position sensor. The piston-rod assembly is slidably mounted inside the cylindrical body. The base is provided with an opening adapted to accommodate the sensor therethrough. In operation, the cover seals the opening. The position sensor is mounted to an internal face of the cover so that the position sensor is operatively located inside the cylindrical body when the cover is in place. The position sensor is operative to measure a position of the piston-rod assembly. A sensor module adapted to sealably close the opening in the base comprises the position sensor mounted to an internal face of a cover structure. In operation, the position sensor is operatively located inside the actuator when the cover structure closes the opening. | 03-04-2010 |
| 20100050864 | Piston-Cylinder Unit - The present invention relates to a piston-cylinder unit with a piston with adjoining piston rod, which is movably mounted in a cylinder, wherein the piston and the piston rod have a cavity into which at least one rod protrudes, by means of which an electrically conductive connection can be made directly or indirectly. | 03-04-2010 |
| 20100095840 | HYDRAULIC CYLINDER ROD POSITION SENSOR - A fluid pressure cylinder assembly has a sensor to provide a signal indicating the amount of extension of a piston rod from the cylinder. The sensor includes a sleeve that is fixed relative to a base of the cylinder and passes into a longitudinal bore in the piston rod, and the piston rod carries a sensor core that is in the bore and is secured to the piston rod at an end opposite from a piston on the rod. The core slides on the interior of the sensor sleeve. A connection is provided to the sensor sleeve such that as the core moves relative to the sensor sleeve a signal indicating the amount of movement and the relative position of the cylinder base and the piston rod is provided. | 04-22-2010 |
| 20100107869 | ADJUSTABLE CYLINDER POSITION SENSOR - A device for detecting the absolute position of a cylinder rod is provided. A cylinder assembly has a cylinder body with a gland member positioned thereof. The gland member has a rod opening extending therethrough. An adjustable sensor is mounted on the gland member, the adjustable sensor being operable to read one or more detectable features of the cylinder rod. The adjustable sensor can be incrementally adjusted relative to the cylinder rod to optimize the gap provided between the adjustable sensor and the cylinder rod, allowing the sensor to detect the motion and absolute position of the cylinder rod. The detectable features may be three tracks of data including first timing data and position data. | 05-06-2010 |
| 20100269690 | Spring-Loaded Brake Cylinder Having Locked Stop Body - A spring-loaded brake cylinder for commercial vehicles includes at least one spring-loaded brake piston that can be actuated by a pre-loaded spring and is supported in a housing. A mechanical emergency release device is provided for the emergency release of the spring-loaded brake cylinder. The emergency release device includes an indicator that has an indicator rod indicating the position of the spring-loaded brake piston. The rod extends through a threaded spindle of the emergency release device and is movable in the axial direction. A stop body is disposed in the region of one end of the indicator rod. The stop body is positively connected to the indicator rod by a detent connection produced by an axial relative movement between the indicator rod and the stop body. | 10-28-2010 |
| 20110005387 | Piston-Cylinder Unit - A piston-cylinder unit with a center longitudinal axis, a first end, a cylinder filled with a fluid, a piston arranged so as to be displaceable in the cylinder and which divides the cylinder into a first work space remote of the first end and a second work space close to the first end. A piston rod is arranged at the piston and projects through the first work space and is guided out of the cylinder concentric to the center longitudinal axis at a second end opposite the first end so as to be sealed by a guiding and sealing device, and a sensor device for direct or indirect detection of the internal pressure of the piston-cylinder unit. | 01-13-2011 |
| 20110067565 | Method of using a band sensor for determining a position inside a container - In order to detect the position of a piston, e.g. in a piston accumulator, without a run out of electrical cables etc. from the pressure loaded cylinder, the mechanical portion of the band sensor is disposed in the interior of the piston accumulator and a magnet driven in rotation by the winding drum is scanned contactless through a magnetically permeable wall portion from the outside through an angle sensor with respect to a rotation position of the magnet. | 03-24-2011 |
| 20110072964 | SYSTEM FOR ACQUIRING, MEASURING AND CHECKING THE OPERATING PARAMETERS OF A RECIPROCATING FLUID MACHINE - The invention describes a validation system for a reciprocating fluid machine. The system comprises a base plate or foundation on which at least one frame of the reciprocating fluid machine is removably applied; a first shaft, rotatably coupled with the base plate, to activate the components of the frame; at least one system for generating loads, placed in operative connection with such components and put in rotation by a transmission system through at least one second shaft. The system for generating loads is able to simulate the loads generated by the working fluid on a cylinder of the reciprocating fluid machine. | 03-31-2011 |
| 20110083553 | Hydraulic machine - A hydraulic machine having a variable intake volume/pump capacity includes working spaces ( | 04-14-2011 |
| 20110120300 | Linear Actuator and Position Sensing Apparatus Therefor - A linear actuator such as a hydraulic cylinder has linear position sensing apparatus. At least one magnet is provided in a recess in outer surface of the piston for generating a magnetic field that passes through the wall of the cylinder housing. A magnetic sensor arrangement determines the axial position of the piston relative to the housing and comprises at least a pair of magnetic sensor elements arranged at spaced apart locations along the external surface of the wall for sensing the strength of the magnetic field passing through the wall of the housing. The recess in the piston is axially positioned between the first and second end surfaces of the piston and the at least one magnet is disposed between axially spaced north and south pole pieces. | 05-26-2011 |
| 20110126703 | FLUID PRESSURE CYLINDER WITH POSITION DETECTING DEVICE - An elongated attachment hole is formed on a housing containing a magnetic sensor, a thin plate-like hole cover is placed on the housing to cover the elongated attachment hole, a single attachment bolt is disposed in such a manner as to go through the hole cover and the elongated attachment hole, and the attachment bolt is screwed in a screw hole of a cylinder body, thereby fixation of the housing on the cylinder body and fixation of the hole cover on the housing are performed at the same time by using the single attachment bolt. | 06-02-2011 |
| 20110162522 | APPARATUS DRIVEN BY COMPRESSED AIR AND EQUIPPED WITH DUAL PISTON FUNCTION FOR USE IN BODY CONSTRUCTION IN THE AUTOMOTIVE INDUSTRY - The invention relates to an energy-efficient apparatus driven by compressed air and equipped with a dual piston function for tensioning, or clamping, or centering, or punching, or welding, or clinching, for use in body construction in the automotive industry. The apparatus is driven by a pressurized fluid, in particular by compressed air. It is shown how a significant amount of operating costs can be saved while, at the same time, conserving the environment and consuming a low amount of pressurized fluid, in particular compressed air. In addition, the pivoting angle of a toggle joint assembly and thus of an apparatus connected thereto, for example, a tensioning arm of a toggle tensioning apparatus, can be continuously adjusted in both directions while, at the same time, adjusting a sampling device using sensors, for example, microswitches, or inductive switches, or pneumatic switches, or limit switches. | 07-07-2011 |
| 20120017758 | PRESSURE CYLINDER WITH OIL STORING FUNCTION - A pressure cylinder includes a first cylinder body having accommodated therein a piston. a second cylinder body defining therein a first passage vertically connected to the first cylinder body, an oil storage chamber vertically connected to the first passage, a second passage vertically connected to the oil storage chamber and a pressure chamber vertically connected to the second passage and having a cross-sectional area smaller than the oil storage chamber, and a piston rod inserted through the first passage of the second cylinder body in an airtight manner and having its one end connected to the piston and its other end movable by the piston between a first position in the oil storage chamber and a second position in the pressure chamber to add a pressure to the hydraulic oil in the pressure chamber and to let the hydraulic oil in the oil storage chamber be supplied to the pressure chamber to make up any hydraulic oil loss, maintaining the output. | 01-26-2012 |
| 20120097026 | Piston Pump With Leak Diagnostic Port - Described are embodiments of a pump having a diagnostic port that enables users and support personnel to diagnose the source of a pump leak. The diagnostic port is monitored visually or with a pressure or liquid detection sensor. In some embodiments, fluid detected at the diagnostic port corresponds to a leak around a circumference defined at an outer sealing surface of a high pressure seal. In other embodiments, fluid detected at the diagnostic port corresponds to a leak around a plunger at the inside diameter of the high pressure seal. Multiple diagnostic ports can be provided to allow separate determinations of leaks about the different portions of the high pressure seal. The embodiments may eliminate the need to disassemble the pump to determine the source of leaks. Thus the effort required to diagnose and repair the pump can be substantially reduced, and fewer misdiagnosed components are ordered or replaced. | 04-26-2012 |
| 20120125193 | PRESSURE TRANSFER MEANS AND PRESSURE MEASURING TRANSDUCER WITH A PRESSURE TRANSFER MEANS - A pressure transfer device comprises a hydraulic path, which is formed by a duct, which extends through a solid body arrangement from a pressure source to a pressure sink, wherein the pressure source comprises a separating diaphragm chamber, which communicates with the duct, and which is sealed with a flexible isolating diaphragm, wherein the isolating diaphragm is contactable with a pressure to be transferred, wherein the pressure sink comprises a sealed sink chamber, which communicates with the duct, wherein the separating diaphragm chamber, the duct and the pressure sink chamber are filled with a pressure transfer liquid, wherein the pressure transfer liquid has according to the invention a magnetically changeable viscosity, and wherein the pressure transfer means further comprises in at least one section of the hydraulic path at least one magnet for influencing the viscosity of the pressure transfer liquid. | 05-24-2012 |
| 20120174771 | PISTON-CYLINDER UNIT WITH DEVICE FOR DETERMINING POSITION - The present disclosure relates to a piston-cylinder unit with a device for determining position, the device comprising at least one exciter that is indirectly or directly electrically connected with the cylinder jacket and the cylinder piston of the piston-cylinder unit, and that excites the electrical oscillating circuit formed by the piston-cylinder unit and the contact lines to oscillate at its resonant frequency, it being possible to measure an electrical signal characterizing the resonant frequency on the piston-cylinder unit. The invention also relates to a construction machine or piece of hoisting equipment with such a piston-cylinder unit. | 07-12-2012 |
| 20120180654 | Piston and Cylinder Assembly with an Indicator Pin Device - An indicator device for a piston and cylinder assembly has an indicator pin with a distal end indicator section for extending out of a side wall of a piston cylinder assembly when the piston and rod assembly is not at the end of its return stroke. A retracting device retracts the indicator pin when the piston and rod assembly moves to the end of its return stroke and has an optional internal lock that mechanically axially affixes the piston and rod assembly. | 07-19-2012 |
| 20120186445 | Hydraulic Device - The invention relates to a hydraulic device comprising an autonomous electronic sensor assembly that has at least one miniature sensing element. Sensing elements of this type require a minimal amount of space. It is especially preferred if the sensor assembly has at least one miniature transmitter. As the hydraulic device does not then require any sensitive electric cables for signal transmission, the reliability of its monitoring capabilities is optimised. | 07-26-2012 |
| 20130125744 | PROXIMITY SWITCH ACTUATION MECHANISM - An actuation mechanism for an electromagnetic switch for a hydraulic cylinder includes a housing adapted to be inserted into a cylinder head. A rod is slidably engaged in the housing and is adapted to move between a first position and a second position. A biasing element, which may be located inside or outside of the housing biases the rod into the first position. | 05-23-2013 |
| 20130263733 | POSITION DETECTING DEVICE FOR FLUID PRESSURE CYLINDER - A sensor holding member holding a position sensor and an attachment member that attaches the sensor holding member to a cylinder tube are formed separately. The sensor holding member is placed with a sensor attachment groove oriented in the direction of the axis of the cylinder tube and in contact with the outer surface of the cylinder tube. The attachment member is placed so as to straddle the sensor holding member. By tightening an attachment screw and fixing the attachment member with an attachment band, the sensor holding member is pressed against and fixed to the outer surface of the cylinder tube by the attachment member. Loosening the attachment screw allows the sensor holding member to be displaced relative to the attachment member in the direction of the axis of the cylinder tube. | 10-10-2013 |
| 20130312601 | SENSOR COUPLER FOR PISTON-CYLINDER ASSEMBLY - A sensor coupler adapted to operatively connect a sensor to a piston-cylinder assembly. The sensor coupler includes a first end member and a second end member. The first end member is disposed on a port of the piston-cylinder assembly, in communication with the sensor, and the second end member is disposed in a cylinder chamber of the piston-cylinder assembly. Further, one or more cables are extending between the first end member and the second end member. The one or more cables are configured to transmit signals indicative of a position of a piston in the piston-cylinder assembly to the sensor. The sensor coupler further includes a biasing member to connect the first end member and the second end member. | 11-28-2013 |
| 20130319223 | OPTICAL SENSOR ENCLOSURE WITH INTEGRAL WINDOW AND OPTICAL ALIGNMENT FEATURES - An enclosure for a position sensor includes a housing and a lower Cassette that cooperate to provide a sealed volume in which a sensor assembly is enclosed and protected. The sensor assembly includes a light source and a light detector. The sensor assembly further includes a light pipe that guides light from the light source onto a target and a lens that guides reflected light from the target onto the light detector. The lower cassette is transparent to the light produced by the light source and includes an integral window through which the light enters and exits the lower cassette. An upper cassette supports an upper portion of the light pipe and the lens. A recess adjacent the window supports a lower portion of the light pipe and the lens in the lower cassette, and the upper cassette is received in a receptacle formed inside the lower cassette. | 12-05-2013 |
| 20130319224 | FLOATING OPTICAL SENSOR MOUNT - A piston-cylinder actuator includes a unique mount for an absolute-position sensor. The mount is made from a bearing material provides a flexible connection between the sensor mount and the cylinder housing. This flexible connection allows the piston rod to deflect naturally, under its own weight or under other laterally-directed forces, while maintaining the distance and perpendicularity between the sensor and the rod surface, within acceptable limits. The sensor mount is made from a bearing material that will allow it to float directly on the rod surface without scuffing or otherwise damaging the rod surface, particularly the markings or other indicia on that surface. Due to the flexible connection between the sensor mount and the cylinder housing, the proper distance between the sensor and the rod surface can be maintained at all times. | 12-05-2013 |
| 20140144316 | Method and Device for Activating an Actuator Element in a Motor System for a Motor Vehicle - The disclosure relates to a method for operating a positioning actuator system with an electronically commutated actuator drive for driving an actuator element, having the following steps: non-volatile storage of a position information item of the actuator element or of a rotor of the actuator drive which was detected last as a reference position before the positioning actuator system is switched off; in the case of switching on of the positioning actuator system retrieval of the reference position and actuation of the actuator drive by energizing the actuator drive in accordance with a space phasor which is dependent on the reference position. The object is to make available an improved method for releasing blockage of an actuator element or actuation after activation of a motor system with a maximum actuating torque. For positioning actuators with commutated motors such as, for example, synchronous motors. | 05-29-2014 |
| 20140260962 | SLIDING PISTON PRESSURE INDICATOR - A fluid pressure indicating device is disclosed. The pressure indicating device includes a housing defining a cylindrical bore therein, and a piston movably disposed within the cylindrical bore. The housing includes a first portion that is permeable to visible light, a first end member, and a second end member opposite the first end member. A first variable volume is defined by the cylindrical bore, the piston, and the first end member of the housing. An inlet port is defined by the first end member of the housing and is in fluid communication with the first variable volume. A piston bypass channel is disposed outside the cylindrical bore and is in fluid communication with the inlet port. An outlet port is defined by the second end member, such that the outlet port is in fluid communication with the piston bypass channel. | 09-18-2014 |
| 20140360360 | METHOD FOR DETERMINING A POSITION OF A PISTON IN A PISTON PRESSURE ACCUMULATOR BY MEANS OF INDUCTIVE SENSORS AND SUITABLY DESIGNED PISTON PRESSURE ACCUMULATOR - The invention relates to a piston accumulator ( | 12-11-2014 |
| 20150096440 | POSITION SENSOR ASSEMBLY IN A HYDRAULIC CYLINDER - A position sensor assembly for the hydraulic cylinder having a piston and piston rod is provided. The position sensor assembly includes a pressure to electric energy convertor, a transmitter and a receiver. The pressure to electric energy convertor is disposed inside the piston. The pressure to electric energy convertor is configured to determine pressures on both the sides of the piston and convert the determined pressure difference into electric current. The electric current is consumed by the transmitter and hence, the transmitter generates a signal. The signal is wirelessly transmitted to the receiver through the hydraulic cylinder. The receiver disposed on the hydraulic cylinder receives the signal through various components of the hydraulic cylinder. The signal is used to determine the position of the piston. | 04-09-2015 |
| 20150114220 | PISTON-CYLINDER UNIT WITH EVALUATION UNIT FOR DETERMINING THE PISTON POSITION - The present disclosure relates to a piston-cylinder unit with a cylinder jacket and a piston rod longitudinally shiftably guided in the cylinder jacket as well as an evaluation unit which determines the position of the piston rod with respect to the cylinder jacket by the intrinsic electrical properties of an interconnection of cylinder jacket, piston rod and piston, wherein the piston rod is short-circuited against the cylinder or the cylinder head in a manner suitable for high frequencies via one or more contact elements in the region of the exit opening of the piston rod out of the cylinder head. | 04-30-2015 |
| 20150316082 | DEVICE FOR GENERATING A MAGNETIC FIELD ASSOCIABLE WITH A MOVABLE ROD OF A PNEUMATIC ACTUATOR AND METHOD FOR MAKING THE DEVICE | 11-05-2015 |
| 20150316393 | METHOD FOR MAKING A DETECTION DEVICE FOR DETECTING THE POSITION OF A MOVABLE ROD OF A PNEUMATIC ACTUATOR AND DETECTION DEVICE OBTAINABLE WITH THAT METHOD - A method for making a detection device ( | 11-05-2015 |
| 20150337874 | PNEUMATIC SENSING ACTUATOR - A pneumatic artificial muscle (PAM) actuator body can be formed from an elastic material that includes an inflatable chamber and a restraining component, such as flexible, but inextensible fibers, that causes the actuator to contract when the chamber is inflated with fluid (e.g., air or water). The actuator body can be cylindrical or flat. The actuator body can include a sensor layer formed of an elastic material including a microchannel filled with a conductive fluid to sense the expansion of the actuator body. The sensor layer can be configured to expand when the actuator body is inflated causing the electrical resistance of the conductive fluid to change. A sensor layer between the actuator body and restraining component can be used to measure changes in the contraction force of the actuator and a sensor layer outside of the restraining component can be used to measure changes in the length of the actuator. | 11-26-2015 |
| 20150377263 | Method for Producing a Component Comprising a Position Measuring System - A piston rod defining a surface and including a structure on the surface configured to be traced by a position sensor during a stroke of the piston rod. The surface, and consequently the structure, are covered by a coating by buildup welding. The structure is produced in the same operation during the buildup welding of the coating. The entire structure may be formed by the buildup welding, or a coded basic profile is incorporated before the buildup welding. | 12-31-2015 |
| 20160097408 | CYLINDER POSITION DETERMINATION USING FIBER OPTIC SHAPE SENSING - A system for determining the stroke of a hydraulic cylinder is provided. The hydraulic cylinder includes a barrel with a rod that slidably extends therefrom. A fiber optic shape sensing system is positioned to determine the stroke of the rod relative to the barrel. An interrogation module is fixed to a reference frame. A fiber bundle is joined to the interrogation module at a proximal end and a fiber termination at a distal end, which is joined to the connecting end of the rod. A signal conditioning module connected to the interrogation module is configured to compute the location of at least one position of the fiber bundle relative to the reference frame; and provide an output indicative of the stroke of the connecting end relative to the barrel. | 04-07-2016 |
| 20160097409 | ADAPTER ASSEMBLY FOR AN INFLATING DEVICE - An adapter assembly for an inflating device has a case body and a warning unit. The case body has a first chamber and a second chamber. The first chamber and the second chamber are formed in the case body and communicate with each other. The warning unit is mounted in the second chamber and has a selective module, multiple adjusting modules, a sounding body, and a cover body. The selective module is mounted in the second chamber and has multiple accommodating portions formed in the selective module. One of the accommodating portions communicates with the second chamber. The adjusting modules are respectively mounted in and communicate with the accommodating portions. The sounding body is mounted on the selective module and communicates with the accommodating portions. The cover body is mounted on the selective module, and has a least one sound hole communicating with the sounding body. | 04-07-2016 |
| 20160131164 | System and Method for Estimating Health and Remaining Useful Life of a Hydraulic Element - A method for estimating health and remaining useful life of a hydraulic element of a machine is provided. The method includes determining a charge time of a hydraulic accumulator coupled to the hydraulic element in which a current pressure of a hydraulic fluid in the hydraulic accumulator reaches an upper threshold pressure, the current pressure being measured by a hydraulic accumulator pressure sensor coupled to the processor and the hydraulic accumulator. The method includes determining a discharging flow rate of the hydraulic element based upon the determined charge time of the hydraulic accumulator, a health indicator of the hydraulic element based upon a difference between the discharging flow rate and a stored discharging flow rate. The method includes determining a remaining useful life of the hydraulic element based upon the health indicator of the hydraulic element. | 05-12-2016 |
| 20160177981 | CYLINDER-PISTON UNIT AND METHOD OF DETECTING CONTINUOUSLY THE RECIPROCAL POSITION BETWEEN CYLINDER AND PISTON OF SUCH UNIT | 06-23-2016 |
| 20160177982 | FLUID PRESSURE CYLINDER | 06-23-2016 |
| 20160177983 | PACKAGING MACHINE WITH HYGIENIC PNEUMATIC CYLINDER | 06-23-2016 |
| 20120067204 | ACTUATING MECHANISM FOR FLUID DISPLACEMENT AND PRESSURIZING DEVICE - A fluid displacement device, particularly for use of the device to pressurize balloon catheters, or the like. The device includes a plunger which is displaceable through a housing, and an actuating mechanism which engages the plunger. The actuating mechanism includes a nut member that is biased into engagement with a threaded portion of the plunger. The device has a press-to-release feature wherein the plunger is instantly releaseable by simply depressing a control surface to overcome a restorative spring force. Subsequently, the plunger can be translated using macro movements (i.e., by pushing or pulling the plunger). | 03-22-2012 |
