Patents by Inventor Melvin G. Grober

Melvin G. Grober 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).

  • Vendor with door and shelf interlock
    Patent number: 4046440
    Abstract: A vendor comprising a cabinet having a front door and shelves in the cabinet for holding items to be vended, the shelves being slidable into and out of the cabinet at the front of the cabinet when the door is open, the vendor having means for locking the shelves in the cabinet unless the door is opened far enough to enable the shelves to be slid out without striking the door, and means for locking the door in open position when any shelf is in an extended position at least within a predetermined range of extension from its position within the cabinet to prevent closing the door against a shelf.
    Type: Grant
    Filed: April 12, 1976
    Date of Patent: September 6, 1977
    Assignee: UMC Industries, Inc.
    Inventors: Robert N. Cox, Melvin G. Grober