Patents by Inventor Bruce John Schaefer

Bruce John Schaefer 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).

  • Hydrostatically activated release mechanism
    Patent number: 4065823
    Abstract: This invention relates to a hydrostatically activated release mechanism for vehicles which are subject to accidental submersion in water. The release mechanism contains an activating device, a latching mechanism which is connected to buoyant seat cushions and a mechanism for transmitting movement from the activating device to the latching mechanism. The activating device, which is pressure operated, releases the buoyant seat cushion when the vehicle is submerged in water, thereby providing an emergency floating gear for the passengers of said vehicle.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: January 3, 1978
    Inventors: James Walter Lorenzen, Bruce John Schaefer