U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

One-way clutch

Patent 5088581 Issued on February 18, 1992. Estimated Expiration Date: Icon_subject January 30, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

366288

1615534

3200918

3486597

3589486

3831401

One-way clutch for auger agitator
Patent #: 4155228
Issued on: 05/22/1979
Inventor: Burgener, Jr. ,   et al.

Ratchet mechanism
Patent #: 4570769
Issued on: 02/18/1986
Inventor: Isaka

Fibrous material-based friction member
Patent #: 4657951
Issued on: 04/14/1987
Inventor: Takarada ,   et al.

Clutch apparatus Patent #: 5000721
Issued on: 03/19/1991
Inventor: Williams

Inventor

Application

No. 647947 filed on 01/30/1991

US Classes:

192/46, Positive192/107M, Material192/107TTransversely engaging

Examiners

Primary: Bonck, Rodney H.

Attorney, Agent or Firm

Foreign Patent References

  • 2246447 DE 09/13/1973
  • 314892 GB 10/13/2012

International Classes

F16D 041/18
F16D 041/00

Abstract

A one-way ratcheting clutch having a primary annular driving member with a plurality of circumferentially spaced radially inwardly extending lugs and a secondary annular member mounted on a common shaft has a plurality of resilient circumferentially spaced outwardly extending fingers for engaging the lugs configured to be compression loaded. At any relative rotational position at least one, and less than half, of the fingers is in the relaxed or undeflected state to minimize the effects of permanent set where both members are formed of plastic and exposed to service temperatures up to 85° C.

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