Patents by Inventor Georges Renaud

Georges Renaud 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).

  • Centrifugal pump
    Patent number: 4057361
    Abstract: A centrifugal pump, particularly for liquid fertilizer, whose casing has a central cavity housing an impeller in cantilever attachment to the end portion of a drive shaft. This drive shaft end portion forms a socket engaging the free end of the main drive shaft and is fixed thereto by retractable means.
    Type: Grant
    Filed: March 11, 1975
    Date of Patent: November 8, 1977
    Assignee: Societe Pompes Multiflux
    Inventor: Georges Renaud
  • Devices for rendering pumps tight
    Patent number: 3954348
    Abstract: This invention relates to a device for rendering pumps tight of the type in which the pressure of the auxiliary liquid is a function of the pressure prevailing in the pump body, wherein the stuffing box communicates with a reservoir constituted by a casing open on one face but normally closed by an elastically deformable membrane covered by a casing communicating with the pump body.
    Type: Grant
    Filed: November 30, 1973
    Date of Patent: May 4, 1976
    Assignee: Pompes Multiflux, Societe Anonyme
    Inventor: Georges Renaud