Patents by Inventor Jerold S. Weiner

Jerold S. Weiner 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).

  • Pumping mechanism
    Patent number: 4171933
    Abstract: A cam-controlled pumping mechanism operating a piston pump for drawing fluid into the pump during a charge cycle, and pushing the fluid out of the pump during a discharge cycle includes an adjustable crank lever mechanism for providing adjustment of the volume of fluid being pumped. The profile of the track for the cam of the cam-controlled pumping mechanism can be changed to program the exit velocity of the fluid in accordance with the viscosity of the fluid.
    Type: Grant
    Filed: February 10, 1978
    Date of Patent: October 23, 1979
    Assignee: Gerhart Engineering & Machine Co.
    Inventors: Gerhart W. Freimuth, Jerold S. Weiner