Patents by Inventor Luc Albert

Luc Albert 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).

  • Lead-calcium alloys, particularly for battery grids
    Patent number: 6267923
    Abstract: A lead alloy for battery grids is disclosed. The lead alloy contains calcium with a relative concentration by weight of between 0.05% and 0.12%; tin with a relative concentration by weight of less than 3%; aluminum with a relative concentration by weight of between 0.002% and 0.04%; and barium comprising a relative concentration by weight of less than 0.02%.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: July 31, 2001
    Assignee: Metaleurop S.A.
    Inventors: Luc Albert, Alain Goguelin, Jean-Louis Caillerie
  • Process for obtaining a fine powder of dendritic cadmium
    Patent number: 5496462
    Abstract: The invention relates to a process for obtaining a fine powder of dendritic cadmium, characterized in that it comprises the following steps:(a) electrolytic production of cadmium metal on an electrode, under conditions such that there is formed a sponge consisting of tangled polymorphic dendrites,(b) removal and washing of the sponge,(c) disintegration of the sponge in a pulpy medium under conditions such that the dendrites are released in order to obtain a dendritic powder of particle size essentially less than a specified limit.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: March 5, 1996
    Assignee: Metaleurop S.A.
    Inventor: Luc Albert
  • Thallium extraction process
    Patent number: 5296204
    Abstract: The invention relates to a process for extracting thallium present especially in aqueous wastes of industrial origin.The process, which makes it possible to extract and recover thallium from a solution which contains it in the form of a salt of a strong inorganic acid, comprises a stage of bringing the said solution into contact with an ion exchange resin containing a thiol group.This process exhibits good selectivity in relation to salts of metals or metalloids which are usually present in industrial aqueous wastes.
    Type: Grant
    Filed: July 27, 1992
    Date of Patent: March 22, 1994
    Assignee: Metaleurop S.A.
    Inventors: Luc Albert, Herve Masson