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Class Information
Number: 188/82.8
Name: Brakes > Wheel > One-way brakes > Dragged wedging member
Description: Devices in which rotation of the rotating element in the retrograde direction forces a member into jamming position between converging surfaces, one of which is the rotating element, to cause a braking.










Sub-classes under this class:

Class Number Class Name Patents
188/82.84 Rolling 127


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8020681 Wedge one-way clutch Sep. 20, 2011
7938235 Brake and media device employing the same May. 10, 2011
7644813 Freewheel coupling Jan. 12, 2010
7464797 Centrifugal brakes for wheels Dec. 16, 2008
7267213 One-way clutch Sep. 11, 2007
7219793 Apparatus, arrangement and method for braking May. 22, 2007
7207889 Damper mechanism Apr. 24, 2007
7191876 Rotation-retarding device with direct engagement Mar. 20, 2007
RE38498 One-way clutch apparatus Apr. 20, 2004
6564911 Braking assembly May. 20, 2003
6536571 Split locking sprag Mar. 25, 2003
6217452 Direction-dependent driving coupling between the rotor of a permanent-magnet synchronous motor and the working part Apr. 17, 2001
6059084 Sprag clutch assembly May. 9, 2000
5967267 Roller unlocking sprags Oct. 19, 1999
5896967 One-way clutch Apr. 27, 1999
5894915 One way clutch Apr. 20, 1999
5868226 Screw-released roller brake Feb. 9, 1999
5806644 Freewheeling idler wheel hub Sep. 15, 1998
5779014 One-way clutch mounting structure Jul. 14, 1998
5769188 Rotary damper with self-standing mechanism Jun. 23, 1998
5765670 One way clutch Jun. 16, 1998
5722522 Overrunning multiple-row sprag clutch Mar. 3, 1998
5690032 Device for preventing reverse run of carrier of trolley conveyor Nov. 25, 1997
5676226 Sprag and roller one-way clutch assembly Oct. 14, 1997
5642795 One-way clutch Jul. 1, 1997
5632363 One-way clutch May. 27, 1997
5601167 One-way clutch Feb. 11, 1997
5597057 One-way clutch apparatus Jan. 28, 1997
5520268 Friction type resistance booster chain May. 28, 1996
5482144 Three-dimensional roller locking sprags Jan. 9, 1996
5337869 Sprag retainer with rotational restraint Aug. 16, 1994
5232072 Center-free large roller bearing Aug. 3, 1993
5000303 One-way clutch Mar. 19, 1991
4997070 Retainer for one-way clutch Mar. 5, 1991
4907679 Catch device for a roll-up door, grate, grill or the like Mar. 13, 1990
4875564 Spray clutch with a double cage Oct. 24, 1989
4836340 Anti-backlash device for a pump shaft Jun. 6, 1989
4815759 Vehicle with steering-controlled torsion bar stabilizer Mar. 28, 1989
4764041 Multifunctional cassette with web brake for a printer Aug. 16, 1988
4742896 Brake means May. 10, 1988
4736827 One-way clutch Apr. 12, 1988
4705148 Clutch brake assembly Nov. 10, 1987
4697675 Shaft aligned backstop for a reducer Oct. 6, 1987
4656883 Motor vehicle gearbox Apr. 14, 1987
4560033 Multifunction wheelchair handbrake especially adapted for ramp climbing Dec. 24, 1985
4513843 Railway car retarder for shunting purposes Apr. 30, 1985
4481864 Hydraulic jack with mechanical safety lock Nov. 13, 1984
4437553 Freewheeling clutch assembly Mar. 20, 1984
4390924 Variable capacitor with gear train end stop Jun. 28, 1983
4347763 One-way brake Sep. 7, 1982

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