Class / Patent application number | Description | Number of patent applications / Date published |
092015000 | WITH RELEASABLE STOP OR LATCH MEANS TO PREVENT MOVEMENT OF WORKING MEMBER | 32 |
20110088548 | Device for the pulsed release of an amount of fluid that is stored in a storage housing - A device for the pulsed release of an amount ( | 04-21-2011 |
20120125191 | ACTUATOR FOR OPENING AN AIRCRAFT ENGINE NACELLE COWL - Actuator (V) for opening an aircraft nacelle cowl ( | 05-24-2012 |
20120260797 | LINEAR ACTUATOR - A linear actuator includes a cylinder main body, which is provided at one end thereof with a lock mechanism capable of restricting displacement of a slide table. The lock mechanism is equipped with a lock plate and a sub-piston. The lock plate is rotatable toward a side of the slide table by an elastic force of a spring, inserted into an insertion groove, and restricts displacement of the slide table. The sub-piston is displaced by a pressure fluid supplied to a supply port, and releases a displacement restricted state of the slide table by the lock plate. | 10-18-2012 |
20130205988 | Piston and Cartridge Arrangement Having Said Piston - The invention relates to a piston, in particular, for use as a discharge and/or locking piston of a cartridge comprising a base body ( | 08-15-2013 |
20140060318 | Safety Pin - A safety pin is provided and which comprises a cylinder having a first port and a second port arranged in longitudinal ends. A piston is moveably disposed within the cylinder and dividing the cylinder into a first chamber in communication with the first port and a second chamber in communication with the second port. A dowel pin is securely attached to the piston. An adjusting device regulates the position of the piston along a position perpendicular to the first and second directions. And a supplying device directing compressed air to the first chamber through the first port, or directing the compressed air to the second chamber through the second port so as to push the piston and the dowel pin to move along the first direction so as for performing locking and unlocking the equipment. By this arrangement, equipment can be readily locked up and unlocked by the provision of the safety pin. | 03-06-2014 |
20140102290 | MECHANICAL STOP ADJUSTMENT FOR JACK - A first adjustable stop on a jack member selectively adjusts an incline stop gap while a second adjustable stop on a support element selectively adjusts a decline stop gap. Stop surfaces on the first adjustable stop and the support element may define the incline stop gap, while stop surfaces on the second adjustable stop and the first adjustable stop may define the decline stop gap. A number of turns of a stop needed to effect a desired of adjustment may be determined using a pitch, lead, and/or number of starts of threads used to mount the stops. | 04-17-2014 |
20140102291 | HYDRAULIC CYLINDER WITH DRIFT STOP - A hydraulic fluid power cylinder assembly 10 includes a cylinder chamber 14, a piston 15, a piston rod 19 and an end cap 21. End cap 21 includes a drift stop chamber 24 and a drift stop blocking surface 25. Chamber 24 is in open fluid pressure communication with chamber 14 under all conditions. Piston 15 includes a piston body portion 16 and a drift stop body portion 29. Drift stop body portion 29 includes a drift stop blocking member 31 and a positioning surface 34 for preventing the blocking member 31 from contacting the walls of cavity 24 and cylinder chamber 14 when disengaged from blocking surface 25. In one position drift stop body portion 29 is received within drift stop cavity 24, and blocking member 31 engages blocking surface 25 to prevent unintended movement of piston 15. | 04-17-2014 |
20140157977 | CYLINDER MECHANISM - A cylinder mechanism includes a cylinder body assembly, a piston assembly, and a grasping assembly. The cylinder body assembly includes a cylinder body. The cylinder body defines a receiving cavity, a first gas hole, and a second gas hole. The first and second gas holes communicate with the receiving cavity. The piston assembly includes a piston movably received in the receiving cavity, a guiding shaft movably received in the receiving cavity, and a limiting member. A first end of the guiding shaft is fixed to the piston, and a second end defines a receiving groove. A pair of guiding hole is defined in the guiding shaft. The grasping assembly includes a pushing member movably received in the guiding shaft, a pin received through the guiding holes, and a latching member movably received in the guiding shaft and capable of protruding outward. | 06-12-2014 |
20150090112 | BICYCLE HYDRAULIC OPERATING DEVICE - A bicycle hydraulic operation device comprises a bracket, a hydraulic cylinder, a piston a lever, and a first biasing member. The bracket includes a gripping portion configured to be gripped by a rider. The piston is disposed within the hydraulic cylinder and movable between an initial position and an actuated position. The lever is pivotally mounted to the bracket around a first axis and operatively coupled to the piston to move the piston in response to pivotal movement of the lever from a rest position to an operated position. The first biasing member is operatively coupled to the piston and the lever outside the hydraulic cylinder such that the first biasing member biases the piston toward the initial position and biases the lever toward the rest position. | 04-02-2015 |
20150122116 | BENT AXIS TYPE AXIAL PISTON MOTOR - In a bent axis type axial piston motor, so as to smoothly rotate a drive shaft without lowering motor efficiency and brake the drive shaft if necessary, when the drive shaft is rotated through a cylinder block by causing piston rods to reciprocate, relative rotation between separate plates and friction plates is allowed by removing a pressing force applied by a braking piston, and when the separate plates and the friction plates are pushed to a brake force receiving plate by the braking piston, relative rotation between the separate plates and the friction plates is restrained and thus the drive shaft is braked. Restriction members are disposed between a casing and the brake force receiving plate so as to restrain the brake force receiving plate from moving relative to the casing along the axis of the drive shaft. | 05-07-2015 |
20160046383 | STOW LOCK PAWL FOR A RAT ACTUATOR - An actuator for a ram air turbine system includes a piston rod that is cylindrical in shape and centered about a centerline, and stow lock pawls supported by the piston rod and able to move radially. Each of the stow lock pawls has a crown with a crown radius. The actuator further includes a lock bolt extending along the centerline radially within the piston rod and configured to be axially movable within the piston rod between a stowed position and a deployed position. The actuator further includes rollers radially outward from the centerline configured to be guided by the lock bolt and a cylinder having a mating surface with a mating radius. The cylinder is positioned radially outward from the piston rod and configured to be axially movable between the stowed position and the deployed position. A ratio of the crown radius of the stow lock pawls to the mating radius of the cylinder is less than 0.98. | 02-18-2016 |
20160061146 | Actuation Device for Moving a Movable Cover of a Thrust Reverser - The invention relates to an actuation device ( | 03-03-2016 |
20160153480 | CYLINDER MECHANISM | 06-02-2016 |
092017000 | Engages member coaxial with and rotatable relative to working member | 1 |
20160076563 | DEVICE FOR LOCKING ROD MEMBER USING LOCK BLOCK - A device for locking a rod member is provided. The device includes a body section having a vertical hole therein, and a ring-type locking unit and a piston serially arranged along the hole, wherein the rod member is disposed in the hole to be axially movable through the locking unit and the piston. The locking unit may be a lock block including an outer ring having an inclined surface on one side thereof, thereby defining a wedge-type space, an inner ring coaxially disposed in one side of the outer ring and accommodating a pressurizing member interacting with the inclined surface, and a spring disposed in the other side of the outer ring so as to elastically connect the outer ring and the inner ring. | 03-17-2016 |
092018000 | Includes interfitting parts engageable at plural positions including position intermediate stroke limits | 2 |
20090217814 | PNEUMATIC ACTUATOR - A pneumatic actuator is provided for an active hood and includes, but is not limited to a cylinder and a piston, which is movable in the cylinder between a lower terminal position, in which the volume of a chamber delimited by piston and cylinder, which may be impinged using compressed gas, is minimal, and an upper terminal position, in which the volume of the chamber is maximal. The piston is lockable in the lower terminal position by a detent body engaging in first recesses of the cylinder and the piston. A slider is displaceable by impingement using the compressed gas out of an idle position, in which it fixes the detent body in the first recesses, into a triggering position, in which a second recess of the slider overlaps with one of the first recesses and is capable, together with a single one of the first recesses of accommodating the detent body. | 09-03-2009 |
20110132186 | LENGTH-ADJUSTABLE PISTON CYLINDER UNIT COMPRISING A SAFETY DEVICE - A length-adjustable piston cylinder unit comprises a casing which is filled with a fluid and has a central longitudinal axis; a guide and sealing unit which seals off the casing at a first end; a piston rod which is guided through the guide and sealing unit out of the first end of the casing in a sealed manner; a piston which is connected with the piston rod and is guided in the casing in a sealed manner; a first interior portion which is bounded between the piston and the guide and sealing unit; a second interior portion which is bounded by the piston and faces away from the first interior portion; an adjustment valve arranged in the piston for optionally connecting the two interior portions to each other; a guide sleeve which is arranged for displacement on the casing and is concentric to the central longitudinal axis, the guide sleeve being secured to the piston rod at a sleeve end and comprising at least one latch opening which is spaced from the sleeve end along the central longitudinal axis; and a latch sleeve arranged on the guide sleeve, the latch sleeve comprising at least one latch protrusion for engagement into the at least one latch opening, with the at least one latch protrusion of the latch sleeve being arrangeable in the at least one latch opening of the guide sleeve for arranging the piston cylinder unit in a secured position so that the displaceability of the guide sleeve connected with the piston rod relative to the casing is blocked. | 06-09-2011 |
092023000 | Means includes element interfitting between working member and fixed part | 13 |
20090020005 | Piston-cylinder unit - The invention pertains to a piston-cylinder unit for a hinged lid, especially a motor vehicle hinged lid, with a closed first end, a cylinder, a piston installed in the cylinder with freedom to slide back and forth, the piston dividing the cylinder into a working chamber remote from the first end and a second working near the first end; and a piston rod, which is attached to one side of the piston, projects through the first working chamber, and passes out of the cylinder concentrically to the central longitudinal axis of the cylinder through a guide and sealing device at the second end opposite the first end, where a first locking element is provided on the piston rod, and a second locking element is provided on the cylinder to establish a mechanical interlock, and where one of the locking elements comprises a sleeve, which cooperates with the other locking element to establish an interlock. | 01-22-2009 |
20090095151 | Actuator For Active Motor Vehicle Bonnet - A pneumatic actuator is provided for an active bonnet. The pneumatic actuator includes, but is not limited to a cylinder and a piston transferable from a rest position to an extended position and lockable in its rest position. The piston, in its rest position, is held pre-stressed by a spring element in the direction of the extended state. | 04-16-2009 |
20120085227 | LATCHING ASSEMBLY FOR AN ACCUMULATOR - An accumulator assembly includes a pressure canister and a latching assembly. The latching assembly includes a solenoid, an actuator, and a piston. The piston is slidingly engaged within an interior space the canister. The piston divides the interior space of the canister into an air chamber and a fluid filled chamber. The fluid filled chamber is in fluid communication with a fluid supply line. A biasing member is located within the air filled chamber and exerts a biasing force on the piston. The solenoid induces a magnetic field used to actuate the actuator, where the actuator selectively engages with a groove located along an outer surface of the piston. When the actuator disengages from the groove, the biasing force exerted by the biasing member urges the piston to slide within the canister, causing fluid to discharge from the fluid chamber and into the supply line. | 04-12-2012 |
20140208935 | LOCKING MECHANISM FOR LOCKING AN ACTUATOR - A locking mechanism for locking an actuator piston within an actuator cylinder housing is disclosed. The locking mechanism comprises a locking pin that is moveable between extended and retracted positions. The locking pin can be moved using a controller, such as a hydraulic controller, for example. In the extended position the locking pin engages the actuator piston thereby locking the actuator piston in a specific position. The locking mechanism includes a mechanical bias (such as a spring or other mechanical system) that biases the locking pin towards an extended position to lock the actuator piston when counter-pressure on the locking pin is lower than the pressure provided by the mechanical bias. The locking pin can be hydraulically operated so that hydraulic pressure that forces the actuator piston to retract also exerts force on the locking pin to move it from a locked position to an unlocked position. | 07-31-2014 |
092024000 | Element actuated or retained in operative position by relatively movable fluid responsive member | 5 |
20090266228 | LOCKING PISTON ASSEMBLY - A locking piston assembly ( | 10-29-2009 |
20100107867 | LIFTER FOR LID OF MOTOR VEHICLE - A lifter for the lid of a motor vehicle may include a cylinder in which a fluid is filled, a first rod passing through one end of the cylinder so as to permit reciprocation therethrough, connected with a first piston slidably disposed in the cylinder and having at least an opening for a fluid communication through in the cylinder, and a second rod passing through a second, opposite end of the cylinder so as to permit reciprocation therethrough, connected with a second piston disposed in the cylinder and having at least an opening for a fluid communication in the cylinder so as to be opposite to the first piston, wherein the second rod has a cross section which is less than that of the first rod such that a magnitude of reaction force applied toward an outside of the cylinder is less than that of the first rod. | 05-06-2010 |
092025000 | With pivoted link between element and member | 1 |
20160097407 | Locking Rotary Actuator - The subject matter of this specification can be embodied in, among other things, a locking apparatus for a rotary actuator includes an outer housing comprising a cylindrical interior surface having a recess. A rotor is disposed within the outer housing. The rotor has an interior cavity and a port extending radially from the interior cavity to the cylindrical exterior surface. A piston is disposed for reciprocal movement within the interior cavity between a first position and a second position and includes a first portion having a first thickness, a second portion having a second thickness larger than the first thickness. A key is disposed for radially reciprocal movement within the port and includes a radially proximal end and a radially distal end. The radially proximal end contacts the first portion and the radially distal end does not extend into the recess when the piston is in the first position. | 04-07-2016 |
092026000 | Resilient element | 2 |
20100050859 | CLAMPING SLEEVE - A clamping sleeve is of generally cylindrical shape with a hollow interior and comprises an upper crown, a lower crown, and a tubular sidewall. The upper crown is positioned at an upper end of the clamping sleeve. The lower crown is positioned at a lower end of the clamping sleeve. The tubular sidewall is positioned between the upper and lower crown and includes one or more corrugations that utilize spring like principles such that pressure applied to the external surface of the tubular sidewall circumferentially flexes the clamping sleeve in order to reduce the diameter of the clamping sleeve and apply a clamping force to an object within the clamping sleeve. The clamping sleeve may be utilized in a work support that includes a plunger positioned within the clamping sleeve, wherein a pressurized flowable medium provides pressure to the exterior of the tubular sidewall thereby causing the clamping sleeve to apply a clamping force to the plunger. | 03-04-2010 |
20110107907 | Clamping device and a regulating device - The invention relates to a clamping device for a rod which moves in an axial translatory or rotating manner. Said clamping device comprises a housing, a clamping sleeve which is axially fixed therein, a tensioning piston which can be displaced in the housing embodied as a cylinder, and a spring device for pre-tensioning the piston in the direction of the clamping sleeve in the locking state. Said spring device includes at least one helical plate spring which, in the event of a fracture, maintains the holding force and the dynamic course of the same. In one embodiment, the at least one helical plate spring is coaxially arranged in relation to the rod. In another embodiment, a plurality of helical plate springs are arranged on the circumference of the rod such that they are parallel with the axis thereof, for distribution of a pre-tensioning force acting on the spring device. | 05-12-2011 |
092027000 | Fluid actuated (28) | 4 |
20110168013 | PISTON ASSEMBLY - A piston assembly ( | 07-14-2011 |
20120304850 | DEVICE FOR LOCKING AN AXIALLY MOVABLE COMPONENT OF A HYDRAULIC SYSTEM - The invention relates to a device for locking an axially movable component ( | 12-06-2012 |
20160076562 | SYSTEM FOR BLOCKING RELATIVE TRANSLATIONAL MOVEMENT BETWEEN TWO PARTS | 03-17-2016 |
20160375991 | DUAL LOCKING HYDRAULIC ACTUATOR FOR STRUCTURAL BRACE - A lockable actuator has lock segments that move into recesses inside a piston to enable the piston to move. The lock segments may also move radially outwardly from the recesses in the piston to engage a bevel edge of a cylinder housing assembly to lock the piston. Lock rams having ramps force the lock segments radially outwardly into engagement with the bevel edge of the cylinder housing assembly. | 12-29-2016 |
092028000 | Fluid actuated (27) | 3 |
20130025447 | Fluid Pressure Actuating Mechanism with Mechanical Lock - The present system provides a mechanism which provides mechanical locking of an apparatus, with fluid pressure-driven unlocking and an actuating force when an intended level of such pressure has been reached. The present system thus mechanically locks an apparatus against premature actuation caused by, for example, shock or vibration, until it is subjected to a level of pressure intended to actuate it. The present system is suitable for incorporation in any apparatus taking advantage of its ability to utilize fluid pressure to remove a mechanical block at an intended level of pressure and impart an actuating force. | 01-31-2013 |
20130061742 | Lockable Hydraulic Actuator - An apparatus comprising a downhole tool having a body defining an outer surface, a plurality of standoffs distributed about the outer surface, and a hydraulic circuit operatively coupled to the standoffs. The hydraulic circuit includes a plurality of hydraulically actuated pistons, each of which is operatively coupled to a respective one of the standoffs to extend and retract the respective standoff. The pistons are hydraulically coupled and sized to extend or retract the respective standoffs at substantially the same rate in response to a hydraulic control signal. | 03-14-2013 |
20140366716 | FLUID PRESSURE CYLINDER - An object of the present invention is to provide a fluid pressure cylinder improved in assembling performance so as to easily fix a partition wall to a cylinder main body. A plurality of pistons | 12-18-2014 |