Patents by Inventor Robert C. Wraight

Robert C. Wraight 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).

  • Disc brake assembly and method of using same
    Patent number: 3983964
    Abstract: A disc brake assembly of a vehicle has an actuator for actuating the disc brake and a housing that is positioned about the actuator. An element is provided for observing an identification mark positioned at a preselected location on the actuator adjacent a port of the housing. In the method of the invention, the brake of the vehicle is used and worn brake discs are replaced in response to the mark on the actuator being at a location spaced at least a preselected distance from the location of the mark prior to wear of the brake discs.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: October 5, 1976
    Assignee: Caterpillar Tractor Co.
    Inventors: Duane E. Beals, Robert C. Wraight