Patents by Inventor John W. Hammerschlag

John W. Hammerschlag 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: 5054646
    Abstract: The dispenser is a box-like structure, preferably made of metal, that is suspended from a wall near an elevator. The structure enables cards stored to be pulled out of the dispenser. A pair of spring-loaded binding screws press the cards forwardly toward the dispenser access opening. In addition to advertising or other material thereon, the cards have the floor location imprinted thereon to help a party parking a car to retrieve same upon returning to the parking lot. The dispenser has a cover that is pivotally mounted to a base plate which is attached to a wall with a fastening means. When loading the cards, the dispenser cover is pivoted upward to allow loading of the cards on the binding screws. Then the cover of the dispenser is pivoted back to its original position, whereupon it is locked with the base plate. This structure enables the dispenser to be held securely against the wall so that it is not easily removed from the wall.
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: October 8, 1991
    Assignee: General Parking Corporation
    Inventors: John W. Hammerschlag, Arne Weingart, Andrew R. McLaughlin