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Class Information
Number: 188/317
Name: Brakes > Internal-resistance motion retarder > Having a thrust member with a variable volume chamber (e.g., coaxial or telescoping tubes, compensating reservoir) > Fluid through or around piston within chamber > Via fixed or variable orifice in piston
Description: Device wherein fluid moves via an opening in said member that extends between said faces.










Sub-classes under this class:

Class Number Class Name Patents
188/318 And passage venting fluid external to chamber 198
188/319.1 Having an orifice adjustment for both jounce or bound (compression) and rebound 75
188/319.2 Orifice size varied using a hand or hand tool 69
188/320 Tortuous path orifice 48


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8701846 Inverted strut comprising an air damper combined with a hydraulic stop Apr. 22, 2014
8668062 Damper for furniture Mar. 11, 2014
8590676 Fluid pressure shock absorber Nov. 26, 2013
8544619 Fluid pressure shock absorber Oct. 1, 2013
8430217 Damper Apr. 30, 2013
8427082 Method for absorbing the displacement of a plunger in a linear electrodynamic motor under the influence of an external force Apr. 23, 2013
8381887 Hydraulic shock absorber Feb. 26, 2013
8360215 Two-stage slave cylinder Jan. 29, 2013
8307964 Low-noise shock absorber Nov. 13, 2012
8261895 Hydraulic shock absorber Sep. 11, 2012
8240440 Device for lifting a hatch pivotable around a pivot axis Aug. 14, 2012
8235186 Hydraulic damper spool valve Aug. 7, 2012
8235188 Damping element Aug. 7, 2012
8181755 Dual spring rate damper May. 22, 2012
8162112 Methods and apparatus for protecting a shock absorber from bottoming Apr. 24, 2012
8069963 Variable resistance strut assemblies and articles containing the same Dec. 6, 2011
7975814 Method for arranging a separating piston in a cavity and a device with such a separating piston Jul. 12, 2011
7954609 Damping force generating mechanism for shock absorber Jun. 7, 2011
7740256 Compressible fluid independent active suspension Jun. 22, 2010
7681701 Vibration damper, a method of producing a vibration damper and a dampening arrangement for dampening the vibrations of an engine Mar. 23, 2010
7628256 Device for amplitude-dependent damper Dec. 8, 2009
7458448 Hydraulic shock absorber Dec. 2, 2008
7322449 Hydraulic shock absorber Jan. 29, 2008
7255209 Integrated suspension system for vehicle Aug. 14, 2007
7073643 Compensated rod for a frequency dependent damper shock absorber Jul. 11, 2006
7070028 Frequency dependent damper Jul. 4, 2006
7000907 Spring system for bicycles Feb. 21, 2006
6978872 Hydraulic dampers with pressure regulated control valve Dec. 27, 2005
6860369 Vibration damper with variable damping force Mar. 1, 2005
6782979 Shock-absorbing element for a motor vehicle Aug. 31, 2004
6782980 Controllable damping force hydraulic shock absorber Aug. 31, 2004
6698559 Hydraulic damping device Mar. 2, 2004
6655509 Impact damper Dec. 2, 2003
6637555 Pneumatic connections for vehicle suspensions Oct. 28, 2003
6543754 Air spring Apr. 8, 2003
6439356 Controlled oscillating damper Aug. 27, 2002
6382370 Shock absorber with an adjustable lock-out value and two-stage flow restriction May. 7, 2002
6364075 Frequency dependent damper Apr. 2, 2002
6328291 Shock absorber Dec. 11, 2001
6318523 Flexible monotube valve with digressive performance and independent low speed orifice Nov. 20, 2001
6276498 Piston for a piston cylinder assembly Aug. 21, 2001
6179099 Gas spring having an intermediate stop function and temperature compensation Jan. 30, 2001
6161663 Stroke limiting velocity sensitive valve for a hydraulic lock mechanism Dec. 19, 2000
6148969 Frequency dependant damper Nov. 21, 2000
6119832 Pneumatic movement damper Sep. 19, 2000
6085877 Bi-Directional Multiple State Suspension Damper Jul. 11, 2000
6085876 Flexing disc-blow off assembly for use in a shock absorber Jul. 11, 2000
6053486 Damping cylinder Apr. 25, 2000
6042091 Shock absorber Mar. 28, 2000
6026939 Shock absorber with stanchion mounted bypass damping Feb. 22, 2000

1 2 3 4 5










 
 
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