Patents by Inventor Duane K. Edwards

Duane K. Edwards 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).

  • Apparatus and method for cleaning an air filter of a vehicle
    Patent number: 5741351
    Abstract: An apparatus for cleaning a filter includes a support frame and a turn table for supporting the filter, wherein the turntable rotates in relation to the support frame during a filter cleaning operation. The apparatus also includes an air flow director for directing a flow of air against the filter, wherein the air flow director is fixed in relation to the support frame during the filter cleaning operation. A method of cleaning a filter is also disclosed.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: April 21, 1998
    Assignee: Caterpillar Inc.
    Inventors: Ronald C. Beal, Duane K. Edwards, John Styfhoorn