Patents by Inventor Alfred H. Boardman

Alfred H. Boardman 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).

  • Can end closure
    Patent number: 4274351
    Abstract: The instant invention relates to an end closure or cover for a metal container comprising a substantially flat sheet metal lid seamed about its extremity to the container body closing the body end. The lid has a pour opening having a closure hingeably connected to the lid and closing the pour opening provided to retain the closure against inward displacement thereby resisting atmospheric pressure and premature opening of the container and against outward displacement due to internal pressure during processing.
    Type: Grant
    Filed: February 5, 1980
    Date of Patent: June 23, 1981
    Assignee: American Can Company
    Inventor: Alfred H. Boardman
  • Can end closure
    Patent number: 4213538
    Abstract: The instant invention relates to an end closure or cover for a metal container comprising a substantially flat sheet metal lid seamed about its extremity to the container body closing the body end. The lid has a pour opening having a closure hingeably connected to the lid and closing the pour opening provided to retain the closure against inward displacement thereby resisting atmospheric pressure and premature opening of the container and against outward displacement due to internal pressure during processing.
    Type: Grant
    Filed: July 9, 1979
    Date of Patent: July 22, 1980
    Assignee: American Can Company
    Inventor: Alfred H. Boardman