Patents by Inventor Hal M. Zeller

Hal M. Zeller 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: 5592721
    Abstract: A holder for flexible sheet material providing a substantially horizontally oriented housing containing convergent parallel walls forming an interior passageway with an opening. Contained within the housings' passageway are several spaced cylindrical rods with removable handles attached and exposed through the opening of the housing. The relationship between the diameter of the rods and the opening between the convergent walls is such that the rods can not pass through the opening and exit the housing. Sheet material moved into the opening in an upward direction between the inside front of the housing and the rods is secured by pulling on the handles attached to the rods to activate the wedging action. The sheet material can be removed from the holder by moving the handles vertically within the passageway to allow the sheet material to slip freely out of the housing.
    Type: Grant
    Filed: July 11, 1995
    Date of Patent: January 14, 1997
    Inventor: Hal M. Zeller