Patents by Inventor Everett W. Roberts

Everett W. Roberts 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).

  • Publication number: 20040195049
    Abstract: An elevator cab constructed in-situ from elongated channel shaped pans. The pans have their ends bolted to steel alignment angles and their flanges bolted to abutting flanges of adjacent pans. The pans and alignment angles can be bolted together with bolts and nuts of a common size and preferably are arranged to rotationally interlock with the bolts to simplify tightening of the nuts and enable the cab to be conveniently assembled even in low clearance hoistways. Light fixtures are nested in associated pans forming the cab top and are protected by sheet metal panels secured to the flanges of such pans. An emergency exit door on a top panel has a unique safety switch interlock.
    Type: Application
    Filed: March 18, 2003
    Publication date: October 7, 2004
    Inventors: Alexander Stobo, Donald E. Cation, Danny Duarte, Paul Norman Crews, Brian D. Sheldrick, Everett W. Roberts, Darryl J. Greenaway, David E. Kairis, David L. Morey