Patents by Inventor Peter L. Sherrick

Peter L. Sherrick 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).

  • Patent number: 4476968
    Abstract: An improved expanding shoe drum brake (10) is provided. The brake includes a pair of brake shoes (20) pivotably retained on an anchor structure (18). The shoes include brake tables (22) and webs (26), the webs are resiliently urged by a spring (132) into constant sliding engagement with three guide surfaces (78, 88 and 114) to locate the webs on a plane (P) relative to the spider and to retain a substantially parallel relationship between the shoe friction material (24) and the brake drum (12) thereby minimizing the required running clearance (44) or slack of the brake.
    Type: Grant
    Filed: December 14, 1983
    Date of Patent: October 16, 1984
    Assignee: Eaton Corporation
    Inventors: John A. Urban, Peter L. Sherrick