Patents by Inventor Thomas E. Seefried

Thomas E. Seefried 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).

  • Adjustable vehicle brake proportioning system
    Patent number: 4586590
    Abstract: Two separate hydraulic master cylinders are connected with pressure lines to the front and rear brake cylinders. These two master cylinders are mechanically connected together by an articulating balance bar, all of which is mounted on a slidable mounting bracket. The mounting bracket is slidably movable by a reversible electric motor driving a worm gear that is connected to the mounting bracket. The relative position of the mounting bracket on its mounting plate in relation to the input point of a push rod determines the proportioning ratio of the two master cylinders. The assembly may be moved to obtain any proportioning ratio from 100% front brake to 100% rear braking.
    Type: Grant
    Filed: February 4, 1985
    Date of Patent: May 6, 1986
    Assignee: General Motors Corporation
    Inventors: Paul E. Rishel, Allan D. LaGrou, Thomas E. Seefried