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Class Information
Number: 188/284
Name: Brakes > Internal-resistance motion retarder > Position of thrust member relative to chamber
Description: Device wherein restraining effort varies in accordance with the location of a thrust member with respect to the variable-volume chamber in which the member moves.










Sub-classes under this class:

Class Number Class Name Patents
188/285 Having a fluid flow passage adjusted manually (e.g., threaded plug, threaded rod, gearing) 132
188/286 Having aperture in chamber wall 45
188/288 Having varying area of chamber passageway for thrust member 51
188/289 Having varying area of metering rod extending through orifice in thrust member 56


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8701846 Inverted strut comprising an air damper combined with a hydraulic stop Apr. 22, 2014
8579268 Damping device for a hatch in a military vehicle Nov. 12, 2013
8565965 Aircraft landing gear automated inspection for presence of internal oxygen contamination Oct. 22, 2013
8485326 Hydraulic shock absorber Jul. 16, 2013
8459417 Shock-absorber for aircraft landing gear Jun. 11, 2013
8448760 Progressively dampened hydraulic buffer system May. 28, 2013
8418820 Shock absorber and its hydraulic stopper Apr. 16, 2013
8393447 Vibration damper with amplitude-selective damping force Mar. 12, 2013
8342488 Damping cylinder with annular bladder Jan. 1, 2013
8336684 Stop damper Dec. 25, 2012
8205729 Shock absorber Jun. 26, 2012
8191692 Cylinder apparatus Jun. 5, 2012
8181758 Damping device May. 22, 2012
8172052 Rapid recovery shock absorber system with hydraulic end stop and method for use thereof May. 8, 2012
8167101 Damping force generating mechanism for shock absorber May. 1, 2012
8118144 Hydraulic dampers with pressure regulated control valve Feb. 21, 2012
7975994 Displacement element Jul. 12, 2011
7921974 Damping cylinder with annular bladder Apr. 12, 2011
7913822 Ride height sensing shock damper Mar. 29, 2011
7866452 Vibration damper for vehicles Jan. 11, 2011
7845476 Decoupling stabilizer and system Dec. 7, 2010
7722069 Bicycle suspension system May. 25, 2010
7523818 Vibration damper with amplitude-selective damping force Apr. 28, 2009
7441637 Hydraulic shock absorber Oct. 28, 2008
7387598 Multifunctional portable pneumatic exercise device Jun. 17, 2008
7383108 Vertical acceleration sensing vehicle brake system Jun. 3, 2008
7353922 Air damper Apr. 8, 2008
7309063 Gas-filled spring for a vehicle, such as a motor cycle, and valve for such a gas-filled spring Dec. 18, 2007
7299907 Hydraulic shock absorber and method Nov. 27, 2007
7252031 Cylinder apparatus Aug. 7, 2007
7204104 Damper of drum type washing machine Apr. 17, 2007
7156213 Shock absorber having a hydraulic stop Jan. 2, 2007
7032727 Shock absorber having a hydraulic stop Apr. 25, 2006
7021435 Monotube strut with rebound cut-off feature Apr. 4, 2006
6945372 High frequency shock absorber and accelerator Sep. 20, 2005
6942204 Extension spring strut Sep. 13, 2005
6776269 Twin piston shock absorber Aug. 17, 2004
6739609 Front fork May. 25, 2004
6736245 Dampening cylinder incorporating stop valve May. 18, 2004
6691840 MR damper with rebound cut-off feature Feb. 17, 2004
6681906 Device for increasing shock absorption Jan. 27, 2004
6644446 Hydraulic shock-absorber Nov. 11, 2003
6634471 Hydraulic tension stop for vibration dampers Oct. 21, 2003
6626274 Vibration damper having a rebound Sep. 30, 2003
6622831 Soft-start, soft-return gas spring Sep. 23, 2003
6612410 High frequency shock absorber and accelerator Sep. 2, 2003
6588555 Piston-cylinder unit with at least one bypass groove in the cylinder Jul. 8, 2003
6516257 Method and system for independent axle control of a variable force damper system Feb. 4, 2003
6467592 Arrangement for a piston and cylinder device Oct. 22, 2002
6454061 High frequency shock absorber and accelerator Sep. 24, 2002

1 2 3










 
 
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