Patents by Inventor Frank D. Rubin

Frank D. Rubin 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).

  • Brake system pressure bleed device
    Patent number: 4497176
    Abstract: A stationary pressure bleed stem and a movable pressure bleed stem are mounted on a base plate to adjust for varied spacing between the master cylinder ports at the reservoir bottom. The fixture is clamped over the master cylinder reservoir. The stems may be interchangeable with other similar stems of various dimensions to accommodate for variations in dimensions of different master cylinders. The device simplifies and expedites pressure bleeding of master cylinders having different configurations.
    Type: Grant
    Filed: May 13, 1983
    Date of Patent: February 5, 1985
    Assignee: General Motors Corporation
    Inventors: Frank D. Rubin, Roger A. Schumacher