Patents by Inventor Eldon E. Virgil

Eldon E. Virgil 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).

  • Diesel fuel line heater
    Patent number: 3935901
    Abstract: An arcuate chamber, fitted against a portion of a replaceable fuel line filter for a diesel engine includes an inner high heat transfer material adjacent the filter element, inlet and outlet lines for the chamber for passing engine exhaust gases, an exhaust flow control valve, and a releasable fastener securing the chamber to a filter element.
    Type: Grant
    Filed: June 3, 1974
    Date of Patent: February 3, 1976
    Inventor: Eldon E. Virgil