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Class Information
Number: 188/282.2
Name: Brakes > Internal-resistance motion retarder > Resistance alters relative to direction of thrust member (e.g., high resistance in one direction, low in the other) > Via valved orifice in thrust member > Valve actuated by electrical system
Description: Valved piston in which the size varying element is moved by an applied voltage and current.

Sub-classes under this class:

Class Number Class Name Patents
188/282.4 System having distinct selections (e.g., hard, medium, soft) 77
188/282.3 System initiated by a pressure change or feedback 52

Patents under this class:
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Patent Number Title Of Patent Date Issued
8678148 Dual spring variable valving system Mar. 25, 2014
8626415 Electronic braking system and method for operating an electronic braking system Jan. 7, 2014
8544619 Fluid pressure shock absorber Oct. 1, 2013
8413774 Shock absorber Apr. 9, 2013
8286982 Bicycle suspension system Oct. 16, 2012
7997394 Damping force adjustable fluid pressure shock absorber Aug. 16, 2011
7878311 Piston with an integral electrically operated adjustment valve for a hydraulic vibration damper Feb. 1, 2011
7757826 Damping force adjustable fluid pressure shock absorber Jul. 20, 2010
7722069 Bicycle suspension system May. 25, 2010
7306207 Method and system for adjusting internal pressure of gas lifter using angle sensor Dec. 11, 2007
7066307 Hydraulic dashpot for motor vehicles Jun. 27, 2006
6915885 Oscillation damper with adjustable damping force Jul. 12, 2005
6871731 Adjustable shock absorber for a motor vehicle Mar. 29, 2005
6860369 Vibration damper with variable damping force Mar. 1, 2005
6817454 Damping force control type hydraulic shock absorber Nov. 16, 2004
6749045 Passive force element on the basis of electrorheologic liquids Jun. 15, 2004
6729446 Solenoid-operated driving apparatus and damping force control type hydraulic shock absorber using the same May. 4, 2004
6702075 Controllable shock absorber Mar. 9, 2004
6668986 Active hydraulic fluid vehicular suspension damper Dec. 30, 2003
6491145 Regulable dashpot for motor vehicles, and method of adjusting such a dashpot Dec. 10, 2002
6454060 Vehicle suspension monotube strut base cup assembly Sep. 24, 2002
6422360 Dual mode suspension damper controlled by magnetostrictive element Jul. 23, 2002
6379162 Electrical connector system Apr. 30, 2002
6374967 Damping force control type hydraulic shock absorber Apr. 23, 2002
6345706 Electrical coupling assembly for a magnetorheological damper Feb. 12, 2002
6293377 Variable-damping force shock absorber Sep. 25, 2001
6119831 Controllable vibration damper for motor vehicles Sep. 19, 2000
6007345 Damper and electrical connection system Dec. 28, 1999
5996748 Damping force adjusting type hydraulic shock absorber Dec. 7, 1999
5971116 Electronic suspension system for a wheeled vehicle Oct. 26, 1999
5950775 In-tube shock absorber mounted electromagnetically operated damper valve and shock absorber including adapter Sep. 14, 1999
5927449 Proportional valve with a variable performance curve Jul. 27, 1999
5873437 Shock absorber Feb. 23, 1999
5810127 Proportional valve Sep. 22, 1998
5522483 Shock absorber Jun. 4, 1996
5522484 Variable damping force hydraulic shock absorber Jun. 4, 1996
5467852 Twin-pipe shock absorber Nov. 21, 1995
5303803 Variable dashpot for motor vehicles Apr. 19, 1994
5285878 Cylinder including a piston with a valve control Feb. 15, 1994
5277283 Variable damping-characteristics shock absorber with adjustable orifice construction variable of fluid flow restriction depending upon fluid pressure difference Jan. 11, 1994
5259487 Adjustable dampers using electrorheological fluids Nov. 9, 1993
5254009 Controllable vibration damper for motor vehicles Oct. 19, 1993
5234085 Pilot-controlled shock absorber Aug. 10, 1993
5226512 Variable damping force shock absorber with variable orifice for adjusting damping characteristics Jul. 13, 1993
5168965 Bypass valve with selective characteristics for controlled and adjustable dashpots Dec. 8, 1992
5148895 Rotary actuator for variable damping force shock absorber Sep. 22, 1992
5139119 Apparatus for damping resilient vehicle wheel suspension systems Aug. 18, 1992
5137125 Pressure-actuated valve Aug. 11, 1992
5107969 Controllable vibration damper Apr. 28, 1992
5106307 Connector assembly, in particular for use in an electrically adjustable shock absorber Apr. 21, 1992

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