Patents by Inventor Cornelius Lucas Plaat

Cornelius Lucas Plaat 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).

  • Brake retractor mechanism
    Patent number: 3990547
    Abstract: A brake retractor assembly in which the automatic adjustment apparatus includes a perforated drag tube and a ball carried by an adjusting pin engageable with the tube. The ball is slightly larger than the inside diameter of the tube so that as the brake wears the ball is forced into the tube causing successive sections between the perforations to rupture and provide the necessary adjustment for wear.
    Type: Grant
    Filed: September 4, 1975
    Date of Patent: November 9, 1976
    Assignee: The B. F. Goodrich Company
    Inventor: Cornelius Lucas Plaat