Patents by Inventor Jack L. Ritzert

Jack L. Ritzert 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).

  • Hose coupling
    Patent number: 4690435
    Abstract: A hose coupling for permanent attachment to a hose having a reinforcing braid layer intermediate inner and outer layers of rubber or plastic has an outer sleeve which is circumferentially crimped to the hose at at least four axially spaced rings. The coupling includes a smooth walled insert inside the hose engaging the inner surface of the hose.
    Type: Grant
    Filed: March 7, 1986
    Date of Patent: September 1, 1987
    Inventors: Thomas J. Manning, Jack L. Ritzert, Joseph D. Blouin, Josephine A. Mowinski