Patents by Inventor Stephen M. Bristow

Stephen M. Bristow 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 for cleaning headlight lens and similar surfaces
    Patent number: 5083339
    Abstract: A nozzle arm is associated with an air-operated motor arranged to move the nozzle arm in a forward and return cycle across a headlight. The motor is a reversing air motor that includes a mixing chamber for pressured air and a cleaning fluid. The mixing chamber produces a mist under pressure that cleans the headlight in an efficient manner in one cycle of the arm. The motor is controlled in its movement by a cycling valve and an air operated relay valve. The nozzles on the nozzle arm are thin openings that form a pressured fan-like cleaning pattern.
    Type: Grant
    Filed: November 10, 1989
    Date of Patent: January 28, 1992
    Assignee: Sprague Aristo-Aire, Inc.
    Inventor: Stephen M. Bristow