Patents by Inventor Ben Windham

Ben Windham 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).

  • Automatic flotation device
    Patent number: 4968277
    Abstract: An automatic flotation device is disclosed which uses an electric circuit to fire a detonator or allow a spring loaded arm to open a CO.sub.2 cartridge which then in turn inflates a bladder which lifts a swimmer to the surface. The circuitry utilizes a pressure sensor to determine the depth of the swimmer under the surface. The circuitry is such that if the swimmer has been below a first depth for a given period of time the bladder is inflated or if the swimmer has been below a second, greater depth for any interval the bladder is inflated.
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: November 6, 1990
    Assignee: Eagle Electronics, Inc.
    Inventors: Lane Parish, Ben Windham