Patents by Inventor John E. Brown

John E. Brown 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).

  • Annular elements
    Patent number: 4184690
    Abstract: There is disclosed a seal formed by a seal housing having an annular chamber, a shaft extending therethrough and an annular sealing element disposed within the chamber and partitioning it into a plurality of annular spaces, the sealing element being rigid but compressible and engaging the wall of the chamber radially spaced from the shaft as well as the shaft and said sealing element being provided with fluid passages such that when compressive forces are placed upon the element, the fluid pressure on all sides of said element are equalized.
    Type: Grant
    Filed: January 25, 1978
    Date of Patent: January 22, 1980
    Assignee: West & Son (Engineers) Limited
    Inventor: John E. Brown