Patents by Inventor Leon W. Ponci

Leon W. Ponci 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).

  • Patent number: 5036879
    Abstract: A valve structured for attachment in-line with a conduit containing a fluid under pressure. The valve provides a flow path for the fluid, with the flow path including an area whereat all of the fluid passing through the valve must pass between a stationary surface and an interior surface of an elastic tubular member. A liquid filled chamber of the valve is isolated from the flow path, and in communication with an exterior surface of the elastic tubular member. A first pipe is attached to the valve in open communication with the liquid filled chamber. The other end of the first pipe is connected to a pressure vessel. A flexible diaphragm is affixed within the pressure vessel to divide the interior cavity thereof into a first and a second chamber. Both the first chamber and first pipe are completely filled with liquid and in communication with each other.
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: August 6, 1991
    Inventor: Leon W. Ponci