Patents by Inventor Raymond E. Mack

Raymond E. Mack 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).

  • Caliper disc brake assembly
    Patent number: 4638894
    Abstract: A disc brake unit for machinery, hoists and the like having a pair of brake shoes normally spring biased to a brake engaged condition. A hydraulically operated first piston may be hydraulically actuated to relieve the spring bias to release the spring pressure acting on the disc and thus release the brake. A second piston may then be actuated for moving the brake shoes against the disc and applying a modulated force to the disc while the fist piston is in position to oppose the spring bias, to thereby apply slip braking torque to the output shaft.
    Type: Grant
    Filed: May 30, 1985
    Date of Patent: January 27, 1987
    Assignee: Eaton Corporation
    Inventors: Mansur N. Sitabkhan, Raymond E. Mack