Patents by Inventor Thomas W. Heindel

Thomas W. Heindel 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: 5258911
    Abstract: An end of aisle control system permits an operator controlled materials handling vehicle to be configured by following instructions given on a service terminal and easily positionable magnet sensors to a customer's specific operating environment. In addition to end of aisle magnets that are buried in specified paths in the floor of a warehouse, magnets may be buried in other paths to accomplish specified functions, such as auto-resume and end aisle blocked. The buried magnets identify zones of operation and a microprocessor controls the maximum speed of travel in each of these zones. The maximum speed of the vehicle in each of the specified zones may be pre-selected according to the direction of travel of the vehicle, thus making the control system adaptable to a wide variety of operating environments. The end of aisle control system also controls the method of stopping the vehicle, either by the use of brakes, or by plugging the traction motor.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: November 2, 1993
    Assignee: Crown Equipment Corporation
    Inventors: Timothy A. Wellman, Harold A. Stammen, Thomas W. Heindel