Patents by Inventor Charles E. Mangum

Charles E. Mangum 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).

  • Patent number: 5377565
    Abstract: An automatic oil filter changer for changing the oil filter on a vehicle comprising an elongated handle; a tube for delivering pressure having a first end and a second end, the second end adapted to be coupled to a pressure delivery mechanism; a clamping mechanism coupled to the handle and tube, the clamping mechanism having a closed orientation for crimping the tube for preventing pressure from being delivered through the first end and an opened orientation for allowing pressure to be delivered through the first end; and a head mechanism coupled to the handle and first end of the tube, the head mechanism adapted to receive an oil filter therein, the head mechanism further adapted to receive pressure from the first end of the tube such that when the clamping mechanism is placed in an opened orientation, the head mechanism grips and rotates an oil filter positioned therein, and when the clamping mechanism is placed in a closed orientation, the head mechanism releases its grip of the oil filter.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: January 3, 1995
    Inventor: Charles E. Mangum