Patents by Inventor Hans Peter Tell

Hans Peter Tell 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).

  • Pump having reciprocating pumping means
    Patent number: 4021164
    Abstract: Pump comprising reciprocating pumping means driven by a periodically varying pressure in a hydraulic or pneumatic driving device. The driving device comprises an ejector supplied with a driving medium causing alternating pressure reductions and increases in a pressure chamber by driving a valve body to and from an initial position, the pressure variations in the pressure chamber acting on the pumping means for reciprocating movement thereof.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: May 3, 1977
    Assignee: AB Piab
    Inventor: Hans Peter Tell