Patents by Inventor Alain Marguier

Alain Marguier 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).

  • Container for adding light metal to an aluminium alloy in the liquid state
    Patent number: 5094432
    Abstract: A container for adding to a liquid metal of known density and melting point an additive metal of lower density. The container comprises a tube portion of defined cross-section formed of a metal having a melting point higher than the melting point of the liquid metal and which can alloy with the liquid metal without being a source of pollution, and an insert comprising the additive metal placed within the tube portion. The tube portion has at least one end portion constricted so as to leave a passage with a cross-section smaller than the defined cross-section of the tube, the ratio of the passage cross-section to the tube cross-section being from 1:10 to 1:1000. The container overall has a density greater than the density of the liquid metal, so that it sinks when placed within a bath of the liquid metal. This invention finds application in modifying aluminum-silicon alloys with sodium, and additive metal which is lighter than and floats on a bath of liquid aluminum-silicon alloy.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: March 10, 1992
    Assignee: Aluminium Pechiney
    Inventors: Alain Marguier, Yves Petit