Patents by Inventor Steven J. Ridley

Steven J. Ridley 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).

  • Rotatable hitch for securing a lift sheave to a frame element
    Patent number: 6250608
    Abstract: A rotatable hitch (30) is secured to crosshead channels (10) on an overhead sheave (40) and includes a sleeve (50) and a connecting rod (60) disposed within the sleeve (50).
    Type: Grant
    Filed: February 17, 1999
    Date of Patent: June 26, 2001
    Assignee: Otis Elevator Company
    Inventor: Steven J. Ridley