Patents by Inventor Bernard Marinzet

Bernard Marinzet 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).

  • Piston pump, method and installation for filtering water
    Patent number: 6652741
    Abstract: The present invention provides a method and an installation for filtering a liquid using a membrane filter device. The technical sector of the invention is the field of manufacturing filter devices, in particular semipermeable membrane devices. In the invention, a pump (3, 4) for pressurizing a liquid has three pistons (24, 25, 26) connected to a common shaft (23) mounted to move in translation in three chambers (18a, 18b; 19a, 19b; 20a, 20b) that are in alignment; two of said pistons (24, 26) being identical and connected to the ends of the shaft (23), each separating one of the chambers (18, 20) into two cavities (18a, 18b, 20a, 20b).
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: November 25, 2003
    Inventor: Bernard Marinzet