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Class Information
Number: 192/223.4
Name: Clutches and power-stop control > Transmission and brake > Torque-responsive brake > Wrap-spring brake
Description: Subject matter wherein the device to retard or stop rotation of the output load is a helically coiled resilient element which expands or contracts radially to frictionally engage a member to be braked.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7451799 |
Self-locking device for blinds and shutters |
Nov. 18, 2008 |
| 7325584 |
Mechanism for tensioning a compensation spring for a closing or sun protection installation |
Feb. 5, 2008 |
| 7258219 |
Planetary gear actuator apparatus and method |
Aug. 21, 2007 |
| 7191886 |
Actuating drive with a wrap spring arrangement |
Mar. 20, 2007 |
| 6973952 |
Anti-reverse transmission apparatus and window blind using the same |
Dec. 13, 2005 |
| 6877597 |
Clutch mechanism |
Apr. 12, 2005 |
| 6561587 |
Variable clutching seat recliner mechanism |
May. 13, 2003 |
| 6173825 |
Lift control device for a roller shade |
Jan. 16, 2001 |
| 6164428 |
Wrap spring shade operator |
Dec. 26, 2000 |
| 6158295 |
Linear actuator |
Dec. 12, 2000 |
| 6158563 |
Winding mechanism |
Dec. 12, 2000 |
| 6095312 |
Adjusting device |
Aug. 1, 2000 |
| 6070938 |
Adjustable support apparatus and architecture for adjusting support apparatus |
Jun. 6, 2000 |
| 5950948 |
Coil spring anti-reverse mechanism for a fishing reel |
Sep. 14, 1999 |
| 5909791 |
Spring clutch |
Jun. 8, 1999 |
| 5842659 |
Lever actuator |
Dec. 1, 1998 |
| 5681005 |
Lever actuator |
Oct. 28, 1997 |
| 5542505 |
Torque limiting device with restraining mechanism |
Aug. 6, 1996 |
| 5529157 |
Combination brake and clutch assembly for electric motors |
Jun. 25, 1996 |
| 5507374 |
Clutch controlled roller shade mechanism with integral overrunning ratchet |
Apr. 16, 1996 |
| 5464083 |
Torque limiting spring hinge |
Nov. 7, 1995 |
| 5328007 |
Reverse rotation preventing device |
Jul. 12, 1994 |
| 5287950 |
Fall-arrest apparatus with constant winch braking |
Feb. 22, 1994 |
| 5275262 |
Pedal parking brake device |
Jan. 4, 1994 |
| 5261732 |
Braking system with nonbackdriveable actuator |
Nov. 16, 1993 |
| 5230410 |
Pedal parking brake device |
Jul. 27, 1993 |
| 5228759 |
Braking system with nonbackdriveable actuator |
Jul. 20, 1993 |
| 5219213 |
Anti-lock braking system with nonback driveable actuator |
Jun. 15, 1993 |
| 5211368 |
Angle adjusting device for a display device |
May. 18, 1993 |
| 5058720 |
Methods for reducing lost motion and wire distortion in spring clutches |
Oct. 22, 1991 |
| 4984666 |
Speed governor for toilet or the like |
Jan. 15, 1991 |
| 4953676 |
Spring coupler |
Sep. 4, 1990 |
| 4926987 |
One-way transmission device |
May. 22, 1990 |
| 4690379 |
Electric chain block |
Sep. 1, 1987 |
| 4683995 |
Actuating device in particular for a vehicle window glass raising device |
Aug. 4, 1987 |
| 4651854 |
Spring coupler brake |
Mar. 24, 1987 |
| 4646887 |
Gear drive apparatus |
Mar. 3, 1987 |
| 4646888 |
One-directional drive apparatus |
Mar. 3, 1987 |
| 4623051 |
Load bearing, one-way, spring clutch assembly |
Nov. 18, 1986 |
| 4614257 |
Spring coupler apparatus |
Sep. 30, 1986 |
| 4606276 |
Motion retarder |
Aug. 19, 1986 |
| 4579201 |
Bidirectional, torque-limiting, no-back clutch mechanism |
Apr. 1, 1986 |
| 4533027 |
Friction brake assembly |
Aug. 6, 1985 |
| 4516667 |
Rotary motion damping means |
May. 14, 1985 |
| 4372432 |
Bi-directional clutch |
Feb. 8, 1983 |
| 4371065 |
Brake-type spring coupling for adjustment gears, particularly in seat adjusters |
Feb. 1, 1983 |
| 4369616 |
Centrifugal clutch and brake for lawnmower |
Jan. 25, 1983 |
| 4281747 |
Override lock assembly for a driving means |
Aug. 4, 1981 |
| 4278032 |
Two direction brake for a drafting table |
Jul. 14, 1981 |
| 4267908 |
Unilaterally alternating backlash torque lock |
May. 19, 1981 |
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