Patents by Inventor Phil P. Carpenter

Phil P. Carpenter 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).

  • Spring retainer for limited slip differentials
    Patent number: 5139467
    Abstract: Spring retainer plates for a slip limiting differential are disclosed. Each retainer plate is paired with a similar retainer plate and is adapted to exert a preload on the side gear clutching mechanism of the differential by coil springs interposed between the plates. Each retainer plate has a transverse wall which is generally parallel to the axis of the pinion shaft and has parallel side walls. Each parallel side wall has a generally circular aperture through which the pinion shaft passes. By providing a complete circle of metal around the pinion shaft, plate deformation or breakage is minimized.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: August 18, 1992
    Assignee: Auburn Gear, Inc.
    Inventor: Phil P. Carpenter