Patents by Inventor Barry Kenneth Packman

Barry Kenneth Packman 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).

  • Metal door and method of production
    Patent number: 6321505
    Abstract: A door comprising two metal panels and an internal core structure. The panels have their edges formed around a perimeter sub-frame of channel construction, the base of the channel being internally adjacent the respective edge of the door. Opposing edges of the panels are seam welded together to provide a flush finish, and the base of the channel is apertured to act as a heat sink and to allow weld gas to escape.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: November 27, 2001
    Assignee: Ingersoll-Rand Architectural Hardware Group Limited
    Inventors: Barry Kenneth Packman, Steven Knight