Patents by Inventor L. Lacourcelle

L. Lacourcelle 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).

  • Method of manufacturing a spark erosion electrode wire
    Patent number: 5721414
    Abstract: An entry wire passes through a furnace containing zinc vapor in an inert atmosphere. While passing through the furnace the wire is heated by the Joule effect, by passing through it an electrical current produced by a generator, which rapidly heats it to the appropriate temperature. This produces an electrode wire having a thicker surface layer of diffused copper-zinc alloy, so that spark erosion machining is accelerated. The manufacturing method is fast and low in cost.
    Type: Grant
    Filed: March 26, 1996
    Date of Patent: February 24, 1998
    Assignee: Thermocompact, Societe Anonyme
    Inventor: L. Lacourcelle