Patents by Inventor George Yokota

George Yokota 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).

  • Plate valve
    Patent number: 4184508
    Abstract: A plate valve is presented in which flow losses are reduced and effective flow area is maximized by establishing a ratio of effective seat area (Fs) to area between the plates (Fb) such that Fs/Fb is between 0.4 and 0.8. The spacing between plates is higher compared to the width of the plates than in the prior art, and the width of the plates may decrease for plates of increasing diameter.
    Type: Grant
    Filed: September 28, 1977
    Date of Patent: January 22, 1980
    Assignee: Worthington Compressors, Inc.
    Inventors: Thomas E. Mayer, Richard A. McCarthy, George Yokota