Patents by Inventor Frank E. Bretz, Jr.

Frank E. Bretz, Jr. 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).

  • Shock absorbing means for railway hand brake mechanism
    Patent number: 3933225
    Abstract: Kinetic energy shock incident to the trip release of the chain under tension of a railway car hand brake mechanism is absorbed by one or more blocks of compressible shock-absorbing solid material or by compressible shock-absorbing spring means located within the housing of the mechanism and in the path of the chain when the brake is tripped or released and the chain is prevented from winding in the wrong direction and consequently damaging the hand brake mechanism at one end of the chain and brake components at the other end of the chain.
    Type: Grant
    Filed: June 10, 1974
    Date of Patent: January 20, 1976
    Assignee: Cleveland Hardware and Forging Company
    Inventor: Frank E. Bretz, Jr.