Patents by Inventor Paul J. Willett

Paul J. Willett 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).

  • Rope cleaning device
    Patent number: 5791011
    Abstract: A device for cleaning elevator ropes includes a carpet strip clamped to be in contact with the elevator ropes and includes an additional supply roll of carpet. Once the portion of the carpet strip that comes into contact with the elevator ropes becomes soiled, the carpet strip can be advanced so that a clean portion of the carpet strip is positioned to be in contact with the elevator ropes and the soiled portion of the carpet strip is discarded. The carpet strip is secured by a pair of labyrinth type clamps that can be loosened and tightened without use of additional tools.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: August 11, 1998
    Assignee: Otis Elevator Company
    Inventors: Jesse R. Richter, Paul J. Willett