Patents by Inventor Mark E. Hepner

Mark E. Hepner 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: 7000445
    Abstract: A system for forming a cup used in forming an elongated container including a draw-redraw station including a movable platen carrying a punch shell; a punch core riser, a punch core mounted on the punch core riser; and a first, fluidly actuated pressure sleeve; and a fixed base carrying a pressure pad; a die core ring; and a die core; the punch shell being movable toward the die core ring to wipe the blank over the die core ring to form an inverted cup; the punch core being movable toward the die core to reverse draw the inverted cup and form the cup; and the die core ring engaging the material against the punch core during the reverse draw to control metal thickness; and a cooling assembly including a chiller, a coolant passage formed in the punch core and fluidly connected to the chiller.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: February 21, 2006
    Assignee: Stolle Machinery Company, LLC
    Inventors: Mark E. Hepner, Barry Lippert