Patents by Inventor John D. Wisslead

John D. Wisslead 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).

  • Mechanical intermittent timer flow controller
    Patent number: 7404415
    Abstract: An intermittent fluid flow controller including a main body that houses an inlet in controlled fluid communication with an outlet, a mechanical timing mechanism including a rotatable member that rotates during an operation of the timing mechanism, and a first valve operated by the rotatable member. The first valve is disposed in the main body such that a rotational movement of the rotatable member actuates the first valve to intermittently permit and restrict a fluid flow between the inlet and the outlet over a pre-selected period of time determined by the operation of the timing mechanism.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: July 29, 2008
    Assignee: L.R. Nelson Corporation
    Inventors: Scott W. Jacobs, Lawrence P. Heren, John D. Wisslead, David P. Ransburg