Patents by Inventor Jacques Pierre

Jacques Pierre 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).

  • Process for the preparation of the surface of uranium or uranium-based alloy parts
    Patent number: 4673585
    Abstract: Process for the preparation of the surface of a uranium or uranium alloy part. It comprises a stage of chemically etching the surface of the uranium or uranium alloy part by means of a solution of nickel chloride and hydrochloric acid. The etching solution may also contain hydrofluoric acid.The nickel-coated uranium or uranium alloy parts can be used as shielding or ballasting members in a marine atmosphere.
    Type: Grant
    Filed: July 8, 1985
    Date of Patent: June 16, 1987
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Michel Anzola, Daniel Lefevre, Patrick Massicot, Jacques Pierre, Antoine Henry
  • Assembly comprising a wheel and a disc brake disc, in particular for a railway vehicle
    Patent number: 3939946
    Abstract: The assembly is of the type in which the disc has a braking surface for cooperation with a brake pad and the wheel has a radially-extending web and an axial annular surface. A centering device centers the disc relative to the axial annular surface. The disc has on the side thereof opposed to the braking surface a second surface which frictionally engages a third surface defined by the wheel of the web. The second or third surface is constituted by a material having a coefficient of friction on the third or second surface which is higher than that of the braking surface of the disc on the brake pad so that, upon braking, the disc does not slip relative to the wheel.
    Type: Grant
    Filed: October 10, 1974
    Date of Patent: February 24, 1976
    Assignee: Pont-A-Mousson S.A.
    Inventors: Jacques Pierre, Pierre Simon