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Class Information
Number: 188/282.6
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 > Flexible flap-type valve (e.g., compression washers) > Having flow passage, cutout, aperture, slot, etc.
Description: Flexible flap valve in which the platelike member has an opening.










Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8668062 Damper for furniture Mar. 11, 2014
8651252 Shock absorber Feb. 18, 2014
8613348 Oscillation damper having a backpack valve Dec. 24, 2013
8556049 Damping force controlling valve assembly for shock absorber Oct. 15, 2013
8544619 Fluid pressure shock absorber Oct. 1, 2013
8517153 Suspension damping valve Aug. 27, 2013
8413774 Shock absorber Apr. 9, 2013
8393448 Spring fork Mar. 12, 2013
8333368 Hydraulically damped mounting device Dec. 18, 2012
8307964 Low-noise shock absorber Nov. 13, 2012
8282086 Vibration isolator Oct. 9, 2012
8181758 Damping device May. 22, 2012
8157065 Shock absorber Apr. 17, 2012
8127901 Hydraulic damping device for drawer Mar. 6, 2012
8109372 Damping valve Feb. 7, 2012
8042661 Shock absorber Oct. 25, 2011
8025135 Hydraulic damping device for drawer Sep. 27, 2011
8016088 Damping mechanism Sep. 13, 2011
7789208 Shock absorber for achieving linear damping force characteristics Sep. 7, 2010
7766137 Nonreturn valve for a shock absorber Aug. 3, 2010
7757826 Damping force adjustable fluid pressure shock absorber Jul. 20, 2010
7726451 Vibration damper with amplitude-selective damping force Jun. 1, 2010
7721856 Vibration damper having an amplitude-selective damping device May. 25, 2010
7694786 Damping valve with a directionally-dependent cross section Apr. 13, 2010
7694785 Controllable damping force hydraulic shock absorber Apr. 13, 2010
7654369 Hydraulic vibration damper piston with an integral electrically operated adjustment valve Feb. 2, 2010
7628257 Hydraulic damper for drawer Dec. 8, 2009
7600617 Industrial shock absorber for use in a conveyor system Oct. 13, 2009
7458448 Hydraulic shock absorber Dec. 2, 2008
7322449 Hydraulic shock absorber Jan. 29, 2008
7213689 Shock absorber for a remote-controlled model car May. 8, 2007
7172057 Vibration damper with amplitude-dependent damping force Feb. 6, 2007
7040468 Hydraulic shock absorber May. 9, 2006
6988600 High frequency dampening apparatus Jan. 24, 2006
6959906 Blow-off valve for a hydraulic dashpot Nov. 1, 2005
6899207 Extra support area for valve disc May. 31, 2005
6860370 Controllable damping force hydraulic shock absorber Mar. 1, 2005
6837344 Piston and rod assembly for air-actuated variable damping Jan. 4, 2005
6681906 Device for increasing shock absorption Jan. 27, 2004
6644445 Floating port blocker Nov. 11, 2003
6581734 Damping valve for a shock absorber Jun. 24, 2003
6474454 Damping force control type hydraulic shock absorber Nov. 5, 2002
6390257 Suspension damper having piston plate with coined, continuously curved bypass May. 21, 2002
6371262 Damping force control type hydraulic shock absorber Apr. 16, 2002
6371264 Fulcrum blow off valve for use in a shock absorber Apr. 16, 2002
6336536 Reversing valve with a passage which is dependent on the direction of flow Jan. 8, 2002
6264015 Continuously variable single-tube shock absorber with bidirectional control valve Jul. 24, 2001
6247563 Piston with floating valve for hydraulic damper tube, especially one of the monotube type Jun. 19, 2001
6230858 Internally slotted orifice disc for low speed control in automotive dampers May. 15, 2001
6220409 Stroke dependent bypass Apr. 24, 2001

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