Patents by Inventor Fred Doerscheln

Fred Doerscheln 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: 6468192
    Abstract: A frame for body stretching exercises comprising a pair of U-shaped tubular legs hinged together at their open ends to form a support with their bight portions opposite from their open ends, detent means for limiting the separation of the legs when they are opened by spreading their bight portions apart, an upper generally U-shaped frame hinged to the legs at their open ends, and body supports extending across the legs and across the frame. Detent means are included to maintain the upper frame in co-planar alignment with one of the legs when the upper frame is extended, the frame may be released and swung to lie substantially co-extensively with the legs.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: October 22, 2002
    Inventor: Fred Doerscheln
  • Patent number: 6241566
    Abstract: Cooling apparatus for the stern drive unit of a marine inboard-outboard drive system, the cooling apparatus being of the kind making use of the ram effect and having an intake tube carried on the stern drive unit with its intake end in the water. The tube has an intake port held below the water surface for accepting water by the ram effect while the boat is moving forward. The water is carried by the tube to a system for delivering water from the intake tube to the stern drive unit for cooling it. According to the invention the bottom of the intake tube is closed and the intake port is formed closely adjacent to the bottom of the tube in a selected part of its wall facing forwardly when the boat is in forward motion.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: June 5, 2001
    Inventors: Paul C. Kermis, Fred Doerscheln