Patents by Inventor Nigel C. Wrench

Nigel C. Wrench has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Compact drum brake adjuster
    Patent number: 4811821
    Abstract: An automatic adjusting mechanism for a drum-type brake including a pair of slidably supported tappets for actuating the brake. The tappets are comprised of two threadably connected components which effect adjustment for wear upon relative rotation of the components. An interconnecting shaft insures simultaneous rotation of the respective components of the pair and an automatic adjusting device including an over-adjustment preventing mechanism operates on an extension of this interconnecting shaft.
    Type: Grant
    Filed: September 11, 1987
    Date of Patent: March 14, 1989
    Assignee: Lucas Industries Public Limited Company
    Inventor: Nigel C. Wrench