Patents by Inventor Darrell Harrelson

Darrell Harrelson 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).

  • Method of washing a vehicle and top brush apparatus therefor
    Publication number: 20070174981
    Abstract: A method of washing a vehicle and apparatus therefore is disclosed. In one aspect, a parameter indicative of the rotation of the top brush of the apparatus is monitored, and a vertical position of the top brush relative to the vehicle and controlled. In another aspect, a lift system for the top brush includes at least one pliable strap. In yet another aspect, the lift system has a safety feature for retracted the top brush to an upper position.
    Type: Application
    Filed: January 30, 2007
    Publication date: August 2, 2007
    Applicant: D & S CAR WASH SYSTEMS
    Inventors: Jim Smith, Jerry Canfield, Darrell Harrelson