Class / Patent application number | Description | Number of patent applications / Date published |
092143000 | WITH MOVEMENT DAMPING MEANS (E.G., FLUID FLOW RESTRICTOR) | 19 |
20080314238 | RECIPROCATING-PISTON PUMP FOR FEEDING A LIQUID - The invention relates to a reciprocating-piston pump having an electromagnetically driveable reciprocating piston, which is mounted with a restoring spring, for feeding a liquid, an impact damper composed of an elastomer for damping an impact of the reciprocating piston at the end of a feed phase, a core flange which is situated opposite the reciprocating piston, with a gap which is dependent on the position of the reciprocating piston being provided between the reciprocating piston and the core flange. | 12-25-2008 |
20100186584 | IMPROVED MULTICYLINDER FREE PISTON MACHINE - A machine such as an external combustion engine in an electrical power and heat cogeneration unit comprises multiple cylinders, each driving an independent load or being independently driven, and a balance shaft comprising one or more off-centre balancing mass(es) to counteract rocking motion created by the piston motion and thereby assist in dynamically balancing the machine. | 07-29-2010 |
20110265643 | PISTON AND CYLINDER ASSEMBLY - A piston and cylinder assembly includes a housing defining a bore. A piston is sized to reciprocate in the bore. A first sealing member provides a sealing engagement between the piston and a wall of the bore. A first bushing, of a first material, is around a first portion of the piston toward a first end of the piston. A second bushing, of a second material, is around a second portion of the piston toward a second end of the piston. The first and second bushings guide the piston within the bore. The first material is different than the second material. | 11-03-2011 |
20120111187 | FLOW CONTROL NEEDLE MICRO ADJUSTMENT ASSEMBLY - A fluid cylinder actuator assembly is provided. The assembly includes a cylinder tube and a cushion control needle assembly. The cushion control needle assembly is configured to extend into the fluid cylinder actuator assembly to control fluid that exits the cylinder tube and comprises: a threaded cushion control differential screw that selectively screws into a retainer having corresponding threads; a control needle that includes a stem selectively extendable through a bore in the retainer opposite of the cushion control differential screw; wherein the stem of the control needle is engageable with a threaded bore inside the cushion control differential screw that is complimentary to the threads formed on the stem so that rotating the threaded cushion control differential screw will selectively extend or retract the control needle back and forth; and wherein threads of the threaded cushion control differential screw is different than the threads in its threaded bore. | 05-10-2012 |
20130061746 | Device Having a Pneumatic Actuating Cylinder, and Method for Controlling a Device of Said Type - The invention relates to a device having a pneumatic actuating cylinder ( | 03-14-2013 |
20130213216 | System For Controlling a Stabilizing Foot, Stabilization Device, and Vehicle Including a Stabilization Device - The system according to the invention for controlling a stabilizing foot ( | 08-22-2013 |
20130233167 | PISTON WITH FRANGIBLE PISTON STOP - A piston pump assembly in which a piston-forming element to be received in a piston chamber of a piston chamber-forming member carries a removable stop flange member which may be secured to the piston chamber-forming member to provide a retention stop to prevent the piston-forming element from being removed from the piston chamber. | 09-12-2013 |
20130269513 | Delay Mechanism of a Main Rod of a Gas Spring - A delay mechanism of a main rod of a gas spring is described, having an inner rod and a series of gas chambers which are defined in the interior of the body of the spring in such a manner that, by controlling the passage of gas between said chambers, the speed and delay of the main rod of the spring is controlled. | 10-17-2013 |
20130312598 | MOUNTING ARRANGEMENT FOR A SUCTION MUFFLER IN A LINEAR MOTOR COMPRESSOR - The mounting arrangement is applied to a compressor which comprises: a piston having a cylindrical tubular body; and an actuating means connected to the piston to drive the latter in a reciprocating movement. The suction muffler comprises two tubular inserts, longitudinally disposed in the interior of the piston and having spaced apart open adjacent ends, and closed opposite ends respectively affixed to the top wall of the piston and to the actuating means, and defining, in the interior of the piston, a muffling chamber (C) and an annular passage medianly opened to the muffling chamber (C) and communicating an open rear end of the piston with a suction valve provided in a top wall of said piston. | 11-28-2013 |
20140202327 | HYDRO-PNEUMATIC TENSIONER WITH FLUID RETENTION DEVICE - A cylinder accumulator system is disclosed. The system includes a cylinder comprising a cylinder rod, a cylinder barrel coaxial to the cylinder rod, a cylinder end cap coupled to the cylinder barrel and the cylinder rod, and a cylinder piston assembly disposed within the cylinder barrel. The cylinder piston assembly further includes a dynamic sealing arrangement, which comprises one or more dynamic seals. The system further includes a first annular volume coaxial to the cylinder rod and the cylinder barrel, and a second volume disposed within the cylinder piston assembly. The system also includes a piston disposed within a bore of the second volume and between a hydraulic fluid located on a first side of the piston and a gas media located on a second side of the piston. The system also includes an external high-pressure accumulator, a low-pressure accumulator, and one or more tube manifolds coupling the external high-pressure accumulator and low-pressure accumulator to the cylinder. | 07-24-2014 |
20140283678 | CONNECTOR - Provided is a connector which can facilitate tuning of frequency of pulsation to be reduced and prevent sealing performance from degrading when a piston moves. A pulsation reducing member adopts a structure in which the piston moves in a cylinder. The cylinder has an annular flange portion projecting in a radially inner direction of a hollow cylindrical shape. An elastic sealing member is sandwiched in a compressed state between an end surface of the flange portion of the cylinder and an end surface of the piston. An urging body is disposed in a region in the cylinder on a side of the piston opposite to a passage and applies urging force to move the piston toward the passage and compress the elastic sealing member. | 09-25-2014 |
20140283679 | FLOW RESTRICTOR AND GAS COMPRESSOR - A flow restrictor ( | 09-25-2014 |
20140345450 | GAS SPRING END MEMBERS AS WELL AS GAS SPRING AND GAS DAMPER ASSEMBLIES INCLUDING SAME - A piston assembly including an integral piston chamber with an increased volume that is maximized by providing a mounting arrangement whereby the piston can be mounted to a structural member such that the piston chamber surrounds at least two sides of the structural member. A gas damping passage is disposed in fluid communication with the piston chamber and is dimensioned such that pressurized gas transferred through the gas damping passage can dissipate kinetic energy acting on the piston assembly. The piston chamber can therefore utilize space adjacent the structural member to which it is mounted thereby resulting in a piston chamber of a greater volume than prior art designs. A gas spring and gas damper assembly utilizing such a piston assembly is also included. | 11-27-2014 |
20140360353 | VIBRATION DAMPER WITH A HYDRAULIC END STOP - The vibration damper including a hydraulic end stop that has a sealing ring which is arranged between the end stop ring and the closure element, is supported axially on one side at the end stop ring, engages radially around the piston rod, is mounted in a sliding manner at the piston rod, and with its outer circumferential surface radially contacts the inner wall of the control space, wherein the sealing ring has at least one radial throttle groove which takes effect when the end stop with the sealing ring moves into the control space and ensures a defined flow of damping medium between the control chamber and the first working space, and wherein the sealing ring has a plurality of spring tongues which are supported at a supporting surface on the piston rod side. | 12-11-2014 |
20160010718 | SELF-LOCKING CYLINDER FOR A DOOR OF A MOTOR VEHICLE | 01-14-2016 |
20160053891 | COMPRESSOR HEAD AND GASKET FOR SAME - A compressor head includes an upper part, a lower part, a baffle, and a gasket between the upper part and the lower part. The gasket includes an inner perimeter portion between, and substantially delineating, an upper inner mating portion and a lower inner mating portion of the compressor head. The gasket also includes an outer perimeter portion between, and substantially delineating, an upper outer mating portion and a lower outer mating portion of the compressor head. A tab extends toward the first volume in the compressor head from the inner perimeter portion. The tab cooperates with an upper ledge and a lower ledge of the compressor head to reduce vibration of the baffle between the upper part and the lower part. | 02-25-2016 |
20160076561 | ACTUATOR - An actuator arranged to be movable between an extended condition and a compressed condition and being biased to an intermediate condition between and distinct from the extended condition and the compressed condition. The actuator includes a damping device arranged to define the damping coefficient of the actuator. The damping device is arranged to provide a relatively low damping coefficient when the actuator is in a first condition distinct from the intermediate condition, and a relatively high damping coefficient when the actuator is in a second condition, the second condition being distinct from the first condition and being equal or adjacent to the intermediate condition | 03-17-2016 |
20160091003 | MICRO DAMPERS FOR PREVENTION OF UN-COMMANDED MOTION IN MECHANICAL FEEDBACK ACTUATORS - Apparatus for providing mechanical feedback of a position of an actuator to a controller in a high vibration environment. The apparatus includes a member that contacts a cam surface of the actuator such that movement of the actuator and cam surface causes the member to move. The apparatus also includes a spring that exerts a force on the member toward the cam surface to maintain contact between the member and the cam surface. The apparatus also includes a damper that dampens motion of the member, thereby eliminating resonant movement of the spring and member caused by vibrations. | 03-31-2016 |
20160195084 | Damper For A High-Pressure Pump | 07-07-2016 |