Patents by Inventor John R. Hamner

John R. Hamner 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: 5242151
    Abstract: A fluid flow control valve of the ball type has a unitary body moulded in an elastomer and defining inlet and outlet passageways and a spherical cavity accommodating a plastic, ball-shaped closure member. The closure member is located in the cavity by forcing it, together with its actuating spindle, through a bore formed in the body until it is sealingly located, as a snap fit, in the cavity, during which process the bore is resiliently deformed outwardly but subsequently resiles into contact with the actuating spindle. The valve may, thus, simply have a pair of injection mouldings and, relative to prior ball valve constructions, is therefore simpler and more economic to manufacture. The body is integrally formed with a peripheral external recess whereby it may readily be sealingly engaged, simply as a snap fit, in, for example, an aperture formed in the base or a compressed sir filter bowl, the valve acting as a manual drain valve.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: September 7, 1993
    Assignee: Norgren Co.
    Inventors: Wilfreid L. Boehm, Kevin T. Dickson, John R. Hamner, Jim D. Perkins, John Roedel, Christine M. Wardlow, Thomas E. Van Dorn