Patents by Inventor John C. Maddock

John C. Maddock 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).

  • Device for initializing an automated warehousing system
    Patent number: 5056437
    Abstract: A new and useful device for initializing an automated warehouse system when the system is in its "power-up" mode. The device of the invention initializes the system at "power-up" by sensing the midpoint of a specially formed gap between two strips of retroreflective tape, and establishing the midpoint of that gap as the floating, zero offset, reference point for the system.
    Type: Grant
    Filed: May 15, 1990
    Date of Patent: October 15, 1991
    Assignee: Republic Storage Systems Company, Inc.
    Inventor: John C. Maddock