Patents by Inventor Ronn J. Dunnett

Ronn J. Dunnett 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: 7291776
    Abstract: A vent for a drum or drum head is provided. The vent includes a valve which is mounted on the side of the drum or drum head which can be adjusted between fully open and fully closed positions and may provide a range of settings between those two positions. A number of embodiments of adjustable throttle valve types that are applicable including but not limited to: globe valve, gate valve, ball valve, plug valve butterfly valve, diaphragm valve, check valve, one, two or three way valves, pinch valve, flap valve, needle valve or safety valve.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: November 6, 2007
    Inventor: Ronn J. Dunnett