Patents by Inventor Andre R. Griesmar

Andre R. Griesmar 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).

  • Flow rate control for a variable stroke pump
    Patent number: 4925371
    Abstract: A system for controlling the throughput of a metering pump, the pump including a pumping member (8) driven by a transmission member (4) for converting rotary motion of a reversible drive motor (1) into reciprocating motion of the pumping member, the system comprising means for adjusting the amplitude of the reciprocating motion and means for adjusting the period of said motion.
    Type: Grant
    Filed: December 14, 1988
    Date of Patent: May 15, 1990
    Assignee: Dosapro Milton Roy
    Inventor: Andre R. Griesmar