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Class Information
Number: 188/266
Name: Brakes > Internal-resistance motion retarder
Description: Device including a first member attached to a moving mechanism, wherein there is relative motion between the first member and either a medium or a second member, and wherein at least one component of the relative motion is restrained or dissipated by a reluctance to be disturbed that exists within the medium or the second member.










Sub-classes under this class:

Class Number Class Name Patents
188/272 Combined with mechanism retarded by brake 27
188/271 Combined with surface-friction brake 71
188/299.1 Controlled by an operator (e.g., vehicle driver) remote from retarder 74
188/322.19 Cylinder structure 214
188/267.1 Electroviscous or electrorheological fluid 160
188/297 Having a thrust member with a variable volume chamber (e.g., coaxial or telescoping tubes, compensating reservoir) 97
188/321.11 Including means connecting thrust member to load 156
188/322.12 Including protective shield for retarder 87
188/322.16 Including seal or guide 87
188/267.2 Magnetic fluid or material (e.g., powder) 212
188/266.1 Motion damped from condition (e.g., bump, speed change) detected outside of retarder 83
188/270 Operating against ambient atmosphere 17
188/266.7 Piezoelectric 43
188/283 Piston having a restrictable opening (e.g., apertured plate) in a fixed volume chamber 23
188/284 Position of thrust member relative to chamber 119
188/280 Relative speed of thrust member or fluid flow 140
188/281 Resistance alters relative to direction of thrust member (e.g., high resistance in one direction, low in the other) 77
188/322.22 Thrust member or piston structure 233
188/290 Using a rotary-type fluid damper 282
188/269 Using diverse fluids 122
188/267 Using magnetic flux 326
188/322.5 Using viscosity of fluid medium 114
188/268 Using yieldable or fluent solid or semisolid 229
188/322.13 Valve structure or location 190
188/266.8 With failure or malfunction detection 41
188/275 With fluid regulated in response to inertia of valve member 80
188/274 With heat exchanger 44
188/276 With means compensating for change in temperature or viscosity 68
188/300 With means for locking parts together temporarily 223


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8646550 Self rechargeable synergy drive for a motor vehicle Feb. 11, 2014
8640835 Suspension unit Feb. 4, 2014
8579268 Damping device for a hatch in a military vehicle Nov. 12, 2013
8522933 Adjustable run height lift axle suspension system Sep. 3, 2013
8516914 Suspension actuator Aug. 27, 2013
8499905 Front fork Aug. 6, 2013
8393444 Suspension protection systems and methods Mar. 12, 2013
8307963 Air-bag suspension system Nov. 13, 2012
8246010 Fluid shear actuated hoist brake Aug. 21, 2012
8160774 Vehicular actuator system Apr. 17, 2012
8109491 Vibration damper with a stop spring Feb. 7, 2012
8087499 Vibration wave controlled variable stiffness structures and method of making same Jan. 3, 2012
7963529 Counter-rotating motors with linear output Jun. 21, 2011
7921973 Adaptive energy absorption system for a vehicle seat Apr. 12, 2011
7900754 Rotating tub washer binary damper system Mar. 8, 2011
7861833 Damper in a washing machine and fabricating method of the same Jan. 4, 2011
7806244 Piston/cylinder unit with solenoid valve in piston Oct. 5, 2010
7798295 Air-bag suspension system Sep. 21, 2010
7770983 Damping force control valve and shock absorber using the same Aug. 10, 2010
7753179 Suspension system Jul. 13, 2010
7527849 Honeycomb shock absorber May. 5, 2009
7426983 Landing gear strut damper, and landing gear with independent struts comprising same Sep. 23, 2008
7310978 Drum-type washing machine with elastic oil damper Dec. 25, 2007
7281614 Damper in a washing machine and fabricating method of the same Oct. 16, 2007
7240775 Shock absorber Jul. 10, 2007
7219779 Hydro-pneumatic suspension system May. 22, 2007
7188452 Sleeved bracing useful in the construction of earthquake resistant structures Mar. 13, 2007
7174244 Suspension of a vehicle and method for controlling the same Feb. 6, 2007
7093806 Method and system for decoupling structural modes to provide consistent control system performance Aug. 22, 2006
7046509 Computer controlled display device May. 16, 2006
7005816 Electromagnetic suspension system for vehicle Feb. 28, 2006
6543755 Stacked tetrahedral elastomer mount Apr. 8, 2003
6412606 Damper/positioning structure Jul. 2, 2002
6401883 Vehicle suspension strut having a continuous position sensor Jun. 11, 2002
6386311 Limited independent steering device May. 14, 2002
6374966 Shock absorber assembly Apr. 23, 2002
6374968 Resonant device, such as a striker or load generator Apr. 23, 2002
6206440 Damped mechanical joint assembly Mar. 27, 2001
6148970 Energy absorbing device Nov. 21, 2000
5758455 High pressure servo-mechanism control system for civil or architectural structure Jun. 2, 1998
5603391 Damper valve for power steering coupler Feb. 18, 1997
5549282 Vibration proofing structure Aug. 27, 1996
5520270 Tank structure for holding liquid especially in a spacecraft May. 28, 1996
5445247 Damping unit Aug. 29, 1995
5373920 Horizontally and vertically acting viscous medium vibration damper Dec. 20, 1994
5224668 Torque linkage damper Jul. 6, 1993
5220982 Dampener Jun. 22, 1993
5199537 Abutment with a damping device Apr. 6, 1993
4842106 Rate controllable damping mechanism Jun. 27, 1989
4782919 Supply system for oil dampers Nov. 8, 1988

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