Patents by Inventor William B. Colgan

William B. Colgan 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).

  • Aqua sled
    Patent number: 3931777
    Abstract: An aqua sled for carrying people on and under water comprises a frame of aluminum tubing having a rigid planar section of transparent material to enable users to see beneath the sled and buoyant material affixed thereto to float the sled. A pair of sheets of rigid transparent material are affixed to the front of the frame and form a dihedral of approximately 90.degree. with each other. Each of the sheets extends at an angle of approximately 45.degree. with a corresponding side of the planar section of transparent material. A control device is affixed to the frame and is manually controllable to control the movement of the sled.
    Type: Grant
    Filed: March 12, 1975
    Date of Patent: January 13, 1976
    Assignee: The Raymond Lee Organization, Inc.
    Inventor: William B. Colgan