Patents by Inventor William Hathorn

William Hathorn 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).

  • Internal combustion engine with valve
    Patent number: 4890585
    Abstract: A conventional internal combustion engine having at least one combustion chamber, the combination of a first means for varying the volume of said combustion chamber, an intake valve operated solely by vacuum forces occurring within said combustion chamber, and a second means for varying the volume of said combustion chamber, said second means for varying the volume of said combination chamber being selectively movable in response to pressure conditions within said combustion chamber.
    Type: Grant
    Filed: November 28, 1988
    Date of Patent: January 2, 1990
    Assignee: General Electric Company
    Inventor: William Hathorn