Patents by Inventor Patti S. DuBois

Patti S. DuBois 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).

  • Remotely actuated fuel tank vapor vent valve
    Patent number: 5054520
    Abstract: A tank mounted vapor vent valve is actuated from the filler door by a pair of bellows, a primary bellows operated by the filler door, and a secondary bellows moved by the primary bellows to open and close the valve, joined only by a flexible, easily routed air hose.
    Type: Grant
    Filed: April 25, 1990
    Date of Patent: October 8, 1991
    Assignee: General Motors Corporation
    Inventors: Carl H. Sherwood, Kenneth W. Turner, Patti S. DuBois, Charles H. Covert
  • High efficiency vapor storage canister
    Patent number: 4894072
    Abstract: A canister is divided into small and large bed portions, with the small portion being loaded separately with just diurnal vapors so that it can be purged with a greater efficiency. At fuel fill, both bed portions are loaded simultaneously with a proportion of fuel fill vapors keyed to their own volume ratio, so that an effective capacity equal to the sum of the two is achieved.
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: January 16, 1990
    Assignee: General Motors Corporation
    Inventors: Kenneth W. Turner, Charles H. Covert, Patti S. DuBois