Patents by Inventor Max Wilmshurst

Max Wilmshurst 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).

  • Publication number: 20080178948
    Abstract: A leaky check valve for preventing sudden decompression while allowing the air to exit at a safe and slow rate. The valve comprises a hollow cylindrical connector typically equipped at either ends with a coupling means. This connector holds on the inside a) an annular valve seat in the shape of a truncated cone, oriented such that the truncated apex of the cone faces the inlet, and the inner surface of the cone faces the outlet. The inner surface of the valve seat is indented with at least one radial groove; b) a ball positioned within the cylindrical connector, between the annular seat and the outlet; and c) a ball restraint located between the ball and the outlet.
    Type: Application
    Filed: January 11, 2008
    Publication date: July 31, 2008
    Inventors: Max Wilmshurst, Linda Holland