Patents by Inventor Irving Griffel

Irving Griffel 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).

  • Chain and sprocket power transmitting mechanism
    Patent number: 4168634
    Abstract: A driving and driven sprocket and endless chain arrangement wherein the driven sprocket includes a first set of conventional involute teeth and a second set of modified teeth disposed in respective random patterns, and wherein the modified teeth have the flanks on the trailing sides thereof relieved a predetermined amount and the roots adjacent thereto formed on a diameter a predetermined amount larger than the root diameter of the first set of conventional teeth for improved noise reduction characteristics.
    Type: Grant
    Filed: May 27, 1977
    Date of Patent: September 25, 1979
    Assignee: General Motors Corporation
    Inventor: Irving Griffel