Patents by Inventor Richard L. Koester

Richard L. Koester 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: 6651960
    Abstract: A frame assembly that fits into the hitch receiver box found on many trucks. It has reinforced vertical plate attached to the outer end of an accessory tube. The vertical plate has a series of lugs attached to the top sides of the plate. A pulley is mounted below the lugs. The lugs hold the bottom of a standard car jack, which has a lift plate and is operated by a handle. Wire rope is attached to an eye in the lift plate. The wire rope passes around the pulley. The winch works by placing a jack in the lugs and attaching the wire rope to the eye. The other end of the wire rope is secured to an anchor chain that is secured to a substantial object, such as a tree. As the jack is operated, it pulls on the wire rope, which moves a vehicle.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: November 25, 2003
    Inventor: Richard L. Koester