Patents by Inventor Ralph J. Henderson

Ralph J. Henderson 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).

  • Inventory, cash, security, and maintenance control apparatus and method for a plurality of remote vending machines
    Patent number: 5091713
    Abstract: A monitoring system for monitoring a vending machine at a remote location, the monitoring system including an inventory sensing system for providing a continuous update of the inventory in the vending machine, an alarm system to signal when the vending machine is being damaged or the systems in the vending machine are in need of attention, a communication system, and a credit card verification system. The vending machine is coupled to a central computer system which monitors all the systems in the vending machine. The communication system includes a credit card verification system, a two-way communication capability, a display screen, and a printer.
    Type: Grant
    Filed: May 10, 1990
    Date of Patent: February 25, 1992
    Assignee: Universal Automated Systems, Inc.
    Inventors: Arthur H. Horne, Ralph J. Henderson, David C. Anderson