Patents by Inventor Darryl B. Willingham

Darryl B. Willingham 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).

  • Portable apparatus for reconditioning motor vehicle fluids
    Patent number: 6138722
    Abstract: An apparatus for reconditioning transmission fluid and motor oil is mounted on a cart for portability. The apparatus has a pump and a single hose with two passageways which allow the fluid to be both extracted from the vehicle and delivered back thereinto. One of the passageways allows transmission of fluid out of the vehicle, through the pump and into a reconditioning unit. The other passageway allows transmission of fluid out of the reconditioning unit and into the vehicle after the reconditioning unit has removed particulates and other contaminants from the fluid. The reconditioning unit includes a cellulose filter element in which is embedded activated charcoal located at a medial portion thereof.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: October 31, 2000
    Inventor: Darryl B. Willingham