Patents by Inventor Jack E. Stephens

Jack E. Stephens 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).

  • Automatic grease lubrication system for metering and dispensing lubrication grease onto rolling-sliding, line contact, bearing surface surface
    Patent number: 4312424
    Abstract: An automatic grease lubrication system is described for metering and dispensing lubrication grease onto rolling-sliding, line contact, bearing surface such as heavily loaded walking cams. The system includes an airless spray nozzle directed at the cam for spraying grease onto a portion of the cam surface in a desired spray pattern. A pneumatic driven pump conveys the grease to the spray nozzle at a high pressure of between 2000 and 3000 psi. The nozzle is activated in response to the rotation of the cam surface to spray the grease onto a selected portion of the cam surface.
    Type: Grant
    Filed: July 18, 1979
    Date of Patent: January 26, 1982
    Assignee: Washington Irrigation & Development Company
    Inventors: Harry M. Taylor, Terry L. Braaten, Jack E. Stephens, Donald C. Geraci