Patents by Inventor Frank E. Maier

Frank E. Maier 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: 5121851
    Abstract: An improved easy open can end construction for resealable easy open beverage cans having a hinged and inwardly depressible opening panel defined by an involuted spiro-circular score line having an initial portion that at least partially encircles a pressure application zone, an intermediate portion that continually recedes therefrom and an end portion of circular configuration.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: June 16, 1992
    Assignee: Aluminum Company of America
    Inventors: Jay W. Lyon, Scott C. Biondich, James M. Holthaus, Frank E. Maier
  • Patent number: 4783985
    Abstract: A method of forming an integral rivet in a sheet metal panel by successively coining portions circumscribing a central portion thereof so that the end panel stock is not stretched and a long shanked rivet is produced. The rivet has a relatively thin wall shank and a relatively thick crown which provides sufficient metal for stacking into a rivet head having a wide formable flange.
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: November 15, 1988
    Assignee: Aluminum Company of America
    Inventors: Robert L. LaBarge, Frank E. Maier
  • Patent number: 4678096
    Abstract: A method of forming an integral rivet in a sheet metal panel by successively coining portions circumscribing a central portion thereof so that the end panel stock is not stretched and a long shanked rivet is produced. The rivet has a relatively thin wall shank and a relatively thick crown which provides sufficient metal for staking into a rivet head having a wide formable flange.
    Type: Grant
    Filed: April 3, 1986
    Date of Patent: July 7, 1987
    Assignee: Aluminum Company of America
    Inventors: Robert L. LaBarge, Frank E. Maier