Patents by Inventor Richard W. Mayo

Richard W. Mayo 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).

  • Transmission filter felt
    Patent number: 6695148
    Abstract: A transmission fluid filter material and transmission filter produced therefrom comprising a gradient density composite felt which exhibits high particle removal efficiency at 40 micron diameter particle size and larger with exceptionally high dirt holding capacity and no significant increase in clean pressure drop. The upstream portion of the composite felt contains fine fibers that selectively remove first the fine particles while the downstream portion acts to sieve coarse particles and build a porous filter cake, thereby extending the useful life of the filter.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: February 24, 2004
    Inventors: Edward C. Homonoff, John A. Davis, Stephen D. Copperwheat, Richard W. Mayo, Franklin D. Cean
  • Transmission filter felt
    Publication number: 20030010710
    Abstract: A transmission fluid filter material and transmission filter produced therefrom comprising a gradient density composite felt which exhibits high particle removal efficiency at 40 micron diameter particle size and larger with exceptionally high dirt holding capacity and no significant increase in clean pressure drop. The upstream portion of the composite felt contains fine fibers that selectively remove first the fine particles while the downstream portion acts to sieve coarse particles and build a porous filter cake, thereby extending the useful life of the filter.
    Type: Application
    Filed: August 20, 2002
    Publication date: January 16, 2003
    Inventors: Edward C. Homonoff, John A. Davis, Stephen D. Copperwheat, Richard W. Mayo, Franklin D. Cean