Patents by Inventor David L. Gagnier

David L. Gagnier 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).

  • Hand propulsion device for a paddle boat
    Patent number: 5453031
    Abstract: A hand propulsion device for a paddle wheel boat has a cranking mechanism of handles turning a sprocket. The sprocket drives a chain, which is mounted between the first sprocket and a second sprocket. The chain, in part, turns the second sprocket, which turns an axle and then, in turn, turns the paddle wheel. The device allows handicapped person, who cannot drive the boat with foot power, to operate a paddleboat and enjoy water recreation.
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: September 26, 1995
    Inventor: David L. Gagnier
  • Paddle boat
    Patent number: D359940
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: July 4, 1995
    Assignee: DMM, Inc.
    Inventor: David L. Gagnier