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Class Information
Number: 188/269
Name: Brakes > Internal-resistance motion retarder > Using diverse fluids
Description: Device wherein the medium comprises a gas and a liquid, or comprises liquids of different viscosities.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8459417 Shock-absorber for aircraft landing gear Jun. 11, 2013
8453807 Hydraulic damper device for retarding movement of a movable member toward a stationary member Jun. 4, 2013
7849983 Controllable vehicle suspension system with a controllable magnetorheological fluid strut Dec. 14, 2010
7628255 Gas spring Dec. 8, 2009
7552803 Aircraft shock strut having a fluid level monitor Jun. 30, 2009
7431134 Gas spring Oct. 7, 2008
7306207 Method and system for adjusting internal pressure of gas lifter using angle sensor Dec. 11, 2007
7278522 Controllable motion damper Oct. 9, 2007
7140601 Independent and integrated compact air-bump stops Nov. 28, 2006
6893033 Integrated air spring and strut May. 17, 2005
6820866 Attenuator apparatus Nov. 23, 2004
6749045 Passive force element on the basis of electrorheologic liquids Jun. 15, 2004
6749185 Cushion assembly and method Jun. 15, 2004
6725983 Shock absorber with air pressure adjustable damping Apr. 27, 2004
6715744 Air spring shock absorber module with internal load-based damping adjustment Apr. 6, 2004
6698729 Gas spring having a controllable output force Mar. 2, 2004
6669180 Gas-hydraulic shock absorber assembly Dec. 30, 2003
6659242 Hydraulic shock absorber for vehicle Dec. 9, 2003
6655509 Impact damper Dec. 2, 2003
6648310 Shock absorber Nov. 18, 2003
6637555 Pneumatic connections for vehicle suspensions Oct. 28, 2003
6491289 Oleo-pneumatic shock absorbing system Dec. 10, 2002
6491144 Piston assembly for a disc brake Dec. 10, 2002
6491143 Low impact gas spring Dec. 10, 2002
6481546 Magneto-rheological damping valve using laminated construction Nov. 19, 2002
6450304 Piston and rod assembly for air-actuated variable damping Sep. 17, 2002
6445149 Vibrator controlling method and vibrator Sep. 3, 2002
6382371 Self leveling vehicle suspension damper May. 7, 2002
6322058 Air suspension apparatus Nov. 27, 2001
6302249 Linear-acting controllable pneumatic actuator and motion control apparatus including a field responsive medium and control method therefor Oct. 16, 2001
6286642 Fluid regulating device for use with a shock-absorbing cylinder to obtain a variable shock absorbing effect Sep. 11, 2001
6279765 Railcar cushioning device with internal spring Aug. 28, 2001
6145638 Adjustable installation with a controlled locking gas spring and an emergency locking gas spring Nov. 14, 2000
6053486 Damping cylinder Apr. 25, 2000
6047797 Emergency locking gas spring Apr. 11, 2000
5996746 Adjustable twin tube shock absorber Dec. 7, 1999
5992583 Method of stabilizing valve lift-off in hydraulic shock absorbers Nov. 30, 1999
5992582 Electrorheological rotary pure-shear damping devices Nov. 30, 1999
5984060 Monotube strut assembly Nov. 16, 1999
5924337 Drive unit with a hydrodynamic retarder and transmission Jul. 20, 1999
5878851 Controllable vibration apparatus Mar. 9, 1999
5735510 Vibration damper apparatus Apr. 7, 1998
5682966 Rear shock absorber for bicycles Nov. 4, 1997
5678808 Suspension strut assembly Oct. 21, 1997
5653425 Energy absorbers Aug. 5, 1997
5642823 Railcar shock absorber with neutral position Jul. 1, 1997
5628496 Pneumatic spring May. 13, 1997
5598903 Acceleration sensitive flow sensitive mcpherson strut Feb. 4, 1997
5593007 Shock absorber with third fluid chamber Jan. 14, 1997
5538117 Safety device for a system transported on board a vehicle, in particular an aircraft Jul. 23, 1996

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