Patents by Inventor Gilbert Dolveck

Gilbert Dolveck 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: 5040897
    Abstract: The invention relates to the printing industry, and is based on the comparison of a reproduction under inspection with a reference polychrome graphic representation. Respective reference axes (A.sub.1, A.sub.2) are defined for the reference representation and the reproduction under inspection. These axes are normal to and go through an equivalent point of the representation and reproduction, respectively. The two latter are rotated around their reference axes, producing whirling images (D.sub.1, D.sub.2) formed of concentric color rings (a.sub.1, a.sub.2, . . . a.sub.n and a'.sub.1, a'.sub.2, . . . a'.sub.n) each having a set width and shade, and forming a basis for detecting a possible color drift.
    Type: Grant
    Filed: November 2, 1989
    Date of Patent: August 20, 1991
    Assignee: Swiss Aluminium Ltd.
    Inventor: Gilbert Dolveck
  • Patent number: 4241844
    Abstract: An aerosol dispensing metal can has a tubular side wall and a separate bottom fitted to the side wall by a channel-forming inwardly-folded edge portion of the side wall in which channel a peripheral skirt of the bottom is hookably engaged. The joint can be sealed by a polymeric varnish.
    Type: Grant
    Filed: June 25, 1976
    Date of Patent: December 30, 1980
    Assignee: Aluminium Suisse S.A.
    Inventor: Gilbert Dolveck
  • Patent number: 3965834
    Abstract: An aerosol dispensing metal can has a tubular side wall and a separate bottom fitted to the side wall by a channel-forming inwardly-folded edge portion of the side wall in which channel a peripheral skirt of the bottom is hookably engaged. The joint can be sealed by a polymeric varnish.
    Type: Grant
    Filed: March 4, 1974
    Date of Patent: June 29, 1976
    Assignee: Aluminium Suisse S.A.
    Inventor: Gilbert Dolveck