Patents by Inventor Thomas P. Kregel

Thomas P. Kregel 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).

  • Carriage brake for a storage and retrieval machine
    Patent number: 5141081
    Abstract: A brake for the carriage of a storage and retrieval machine having a mast on which the carriage is mounted and on which the carriage moves in vertical directions for carrying objects to and from storage locations adjacent to the mast. A carriage drive including a rope connected to the carriage is provided for raising and lowering the carriage to and from positions adjacent the storage locations. The rope is connected under tension to the carriage and the tension is released when the rope becomes slack. The brake is mounted on the carriage and includes an actuating member and a resilient member movable into engagement with the actuating member in response to release of tension of the rope to move the actuating member along a predetermined path. The brake further includes a brake cam having an actuating section in the path of the movement of the actuating member and a toothed braking section adjacent to and spaced from the mast.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: August 25, 1992
    Assignee: Harnischfeger Engineers, Inc.
    Inventors: Thomas P. Kregel, Leslie K. Potter