Patents by Inventor John E. Demmer

John E. Demmer 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: 5557964
    Abstract: A bending apparatus (10) for use in bending moldings (300 and 301) having a decorative outer surface (308) is described. The bending apparatus includes an upper bending member (12) and a lower bending member (52) which are moved together to form intricate compound bends in the molding. The bending surface (14) of the upper bending member has a variable curvature which is controlled by adjustment units (38). The lower bending member includes first and second outer tool members (54 and 56) and a middle tool member (120). The moldings are mounted onto the holders (102) of the tool members during bending. The outer tool members pivot along two axis in response to the pressure of the upper bending member during bending. The middle tool member pivots along one axis and is compressed downward during bending. The bending apparatus allows double plane bends to be formed in the molding without damaging the decorative outer surface of the molding.
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: September 24, 1996
    Assignee: Demmer Corporation
    Inventors: Richard E. Jessop, John E. Demmer
  • Patent number: 5481897
    Abstract: A bending apparatus (10) for use in bending moldings (300 and 301) having a decorative outer surface (308) is described. The bending apparatus includes an upper bending member (12) and a lower bending member (52) which are moved together to form intricate compound bends in the molding. The bending surface (14) of the upper bending member has a variable curvature which is controlled by adjustment units (38). The lower bending member includes first and second outer tool members (54 and 56) and a middle tool member (120). The moldings are mounted onto the holders (102) of the tool members during bending. The outer tool members pivot along two axis in response to the pressure of the upper bending member during bending. The middle tool member pivots along one axis and is compressed downward during bending. The bending apparatus allows double plane bends to be formed in the molding without damaging the decorative outer surface of the molding.
    Type: Grant
    Filed: January 19, 1994
    Date of Patent: January 9, 1996
    Assignee: Demmer Corporation
    Inventors: Richard E. Jessop, John E. Demmer