Patents by Inventor David J. Henke

David J. Henke 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: 7451881
    Abstract: A modular shelving system is disclosed. In an embodiment, a box shelf is provided that may be supported by vertical rails of a shelf upright. The box shelf may be supported by shelf supports that engage the vertical rails. The box shelf may include a slideable shelf mounted on a rail and held in position by a biased hinge plate. The slideable shelf may include a divider to separate the shelf into one or more regions and to interfere with the rapid removal of products from the shelf. The box shelf may further include a door that in an embodiment may be required to be opened before products can be removed from slideable shelf.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: November 18, 2008
    Assignee: RTC Industries, Inc.
    Inventors: Stephen Hardy, Adam Gold, John Ward, Max E. Syvuk, John W. Swafford, Jr., David J. Henke
  • Patent number: 5924367
    Abstract: A shelf sign system comprising a first shelf and a second shelf, a first mounting bracket attached to the first shelf and attached to the second shelf, the first mounting bracket spanning the first shelf and the second shelf, and a rotatable sign unit engaged with the mounting bracket. The sign unit is slidably engaged with the first mounting bracket permitting lateral movement of the sign unit. The mounting bracket may include a first flange with a first flange opening and a second flange with a second flange opening and a pin rotatably disposed in the first flange opening and the second flange opening, wherein the sign unit is engaged with the pin. The sign unit may include an L-shaped pivot bracket slidably engaging the pin. The sign unit may be rotatable from a first closed to a second open position. Also, a pivot bracket may be vertically slidable along the pin when the sign unit is in the open position so that the sign unit rests against the first and second flange.
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: July 20, 1999
    Assignee: RTC Industries, Inc.
    Inventors: David J. Henke, Kent Bach, Max Edward Syvuk