Patents by Inventor Albert Alfred Paul Petit

Albert Alfred Paul Petit 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).

  • Controlled discharge pressure pump for pumping liquids
    Patent number: 3977809
    Abstract: A variable liquid discharge flow rate pump with a discharge float valve the opening of which is controlled according to the discharge pressure and flow rate by a hydraulic power ram actuator with a resiliently biased piston slidable in a cylinder communicating with or forming a container space for transit of liquid from a first cavity in which prevails the discharge pressure to a second cavity in which prevails the inlet pressure, the hydraulic circuit comprising at least one passageway providing a head loss variable according to the discharge flow rate and pressure.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: August 31, 1976
    Assignee: A. Petit & Co. S.A.R.L.
    Inventor: Albert Alfred Paul Petit