Patents by Inventor Jon T. Barrett

Jon T. Barrett 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).

  • Biasing assembly for a variable valve timing mechanism
    Patent number: 5515819
    Abstract: A biasing device for a free rocker arm in an engine valve actuating system wherein driven rocker arms are selectively engaged with the free rocker arm to provide variable valve operating characteristics. The biasing device includes interfitting, cold-formed cup-shaped members within which a compression spring is received in interference fit at one end with the body and at the other end with the plunger. In a preferred embodiment, at least two coils of the spring are in interference fit with the body to provide spring damping.
    Type: Grant
    Filed: November 4, 1994
    Date of Patent: May 14, 1996
    Assignee: Eaton Corporation
    Inventors: David M. Groh, Jon T. Barrett, Gary L. Janowiak