Patents by Inventor Harry Girlock

Harry Girlock 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).

  • Diverter valve
    Patent number: 4872474
    Abstract: One end of a valve assembly has a first check valve arrangement and is positioned in a channel connecting a variable volume reservoir and a second chamber. The other end of the valve assembly has a second check valve and is attached to a movable wall of the variable volume reservoir. Each check valve includes an element which opens in response to pressure changes in the variable volume reservoir: the first check valve opening in response to pressure increases while the second check valve opens in response to pressure decreases. The valve assembly is bodily movable with the wall of the variable volume reservoir such that the first check valve reciprocates in the channel.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: October 10, 1989
    Assignee: Ore-Ida Vended Products, Inc.
    Inventors: Philip N. Middleton, Glen R. Green, Harry Girlock