Patents by Inventor Ronald J. Plotzke

Ronald J. Plotzke 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).

  • Park locking mechanism for an automatic transmission
    Patent number: 4907681
    Abstract: A park locking mechanism for a four-speed automatic transmission in which the rollers have oversized bores to reduce the reaction loads transmitted to the carrier pins so as to increase the service life of the carrier pins and rollers.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: March 13, 1990
    Assignee: Chrysler Motors Corporation
    Inventors: Uno Kuusik, Ronald J. Plotzke