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Class Information
Number: 188/288
Name: Brakes > Internal-resistance motion retarder > Position of thrust member relative to chamber > Having varying area of chamber passageway for thrust member
Description: Device wherein a thrust member moves within a variable-volume chamber through a corridor that surrounds the thrust member in a plane perpendicular to its direction of movement, and wherein the size of the corridor in that plane changes along the direction of movement of the thrust member.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8657086 Rotary damper mounting assembly and rotary damper apparatus Feb. 25, 2014
8485326 Hydraulic shock absorber Jul. 16, 2013
8479895 Vibration damper with stroke-dependent damping force Jul. 9, 2013
8448760 Progressively dampened hydraulic buffer system May. 28, 2013
8348028 Pneumatic damper for slowing down movable furniture parts Jan. 8, 2013
8282086 Vibration isolator Oct. 9, 2012
8251376 Bicycle suspension having stroke and damper adjustment Aug. 28, 2012
8220602 Device for damping or decelerating movable parts or pieces of furniture Jul. 17, 2012
8205729 Shock absorber Jun. 26, 2012
8162112 Methods and apparatus for protecting a shock absorber from bottoming Apr. 24, 2012
8157064 Shock absorber for drawer Apr. 17, 2012
7565956 Shock absorber with a damping device Jul. 28, 2009
7111711 Vibration damper with stroke-dependent damping force Sep. 26, 2006
7104369 Vibration damper with stroke-dependent damping force Sep. 12, 2006
6739609 Front fork May. 25, 2004
6568664 Front fork for motorcycle May. 27, 2003
6446771 Shock absorber Sep. 10, 2002
6442796 Air damper Sep. 3, 2002
6269919 Plastic strand damper Aug. 7, 2001
6189662 Adjustable damper Feb. 20, 2001
5971117 Piston-cylinder aggregate with displacement-dependent dampening force field Oct. 26, 1999
5884734 Air damper Mar. 23, 1999
5799759 Hydraulic strut for a motor vehicle Sep. 1, 1998
5769190 Continuous controlled restriction valve for a shock absorber Jun. 23, 1998
5702091 Gas spring Dec. 30, 1997
5577579 Method of manufacturing a suspension damper Nov. 26, 1996
5409087 Hydraulic dashpot for motor vehicles Apr. 25, 1995
5325943 Variable orifice oil/gass damper for aircraft landing gear Jul. 5, 1994
5217212 Shock absorber Jun. 8, 1993
5095581 Variable position door holder and stop Mar. 17, 1992
4964625 Hydraulic damper with oil lock mechanism Oct. 23, 1990
4901828 Method and apparatus for controlling displacement of a piston in a shock absorber Feb. 20, 1990
4846317 Strut with controlled variable damping rate Jul. 11, 1989
4821851 Damper with optimized adjustable valving for vehicle ride control Apr. 18, 1989
4819770 Hydraulic control device Apr. 11, 1989
4797971 Adjusting device for a vehicle door Jan. 17, 1989
4762208 Vibration damper for a towed body Aug. 9, 1988
4566677 Vibration damper and in particular frequency adapter for a helicopter blade Jan. 28, 1986
4457498 Force balanced die cylinders Jul. 3, 1984
4405119 Oleopneumatic suspension with variable throttle orifices, especially for aircraft landing gear Sep. 20, 1983
4399764 Passive shock mitigation system with sea water metering shock absorber Aug. 23, 1983
4312499 Shock absorber assembly with operationally controlled hydraulic-mechanical damping system Jan. 26, 1982
4307875 Self-blocking gas spring released by external force Dec. 29, 1981
4230309 Gas spring with automatic locking mechanism Oct. 28, 1980
4131266 Adjustable shock absorber Dec. 26, 1978
4079924 Shock absorber Mar. 21, 1978
4078638 Oil pressure shock absorber Mar. 14, 1978
4077496 Railway truck movement damping Mar. 7, 1978
4066279 Pneumatic spring of adjustable length Jan. 3, 1978
3985190 Damping or attenuation device for the stopping or arresting arrangement of a scale Oct. 12, 1976

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