Patents by Inventor David M. Shoeffler

David M. Shoeffler 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).

  • Steerable surfing body board
    Patent number: 4708675
    Abstract: A steerable surfing body board for use by a surfer to a hydroplane down the front face of a wave. Two rudders are mounted near the front of the board and two skags are mounted at the rear. A control handle on the upper surface operates the rudders in parallel through a cogged belt between the rudder axles in the center of the board. The handle is offset 45.degree. from the position of the rudders placing the straight ahead position of the rudders in the center of the natural arc of the hand when the elbow rests on the upper surface of the board.
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: November 24, 1987
    Inventors: David M. Shoeffler, Paul W. Schoeffler