Patents by Inventor Patrick Erhard

Patrick Erhard 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).

  • Patent number: 6286357
    Abstract: Process for manufacturing a shaped metal can comprising, on one hand, a bottom (1) and a peripheral wall (2) having a succession of regions of different diameters and, on the other hand, a lid crimped or seamed on the peripheral wall (2). The process comprises producing from a metal blank a cylindrical preliminary can comprising a bottom and a peripheral wall of diameter equal to a given diameter D of a region (2A) of the peripheral wall 2 of the can, effecting a necking operation on a part of the peripheral wall of the preliminary can situated above the region (2A) of the given diameter D of the peripheral wall (2) of the formed can to bring it to a diameter D1 less than the given diameter D, and effecting at least one expanding operation on a part of the peripheral wall situated above the region (2A) of the given diameter D.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: September 11, 2001
    Assignee: Sollac
    Inventors: Michel D'Amore, Patrick Erhard, François Muia
  • Patent number: 5899105
    Abstract: A process for manufacturing a shaped metal can by carrying out at least one step of locally and successively expanding elementary regions of a peripheral wall.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: May 4, 1999
    Assignee: Sollac
    Inventor: Patrick Erhard