Patents by Inventor David Wayne Jones

David Wayne Jones 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).

  • Elevator system having drive motor located adjacent to hoistway door
    Patent number: 7299896
    Abstract: An elevator system includes a hoistway having a plurality of hoistway doors. An elevator car and counterweight are provided in the hoistway. A drive motor is drivingly coupled to the elevator car and counterweight, and is located adjacent to either the top or bottom portion of a hoistway door so as to eliminate the need to provide a machine room above the hoistway ceiling.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: November 27, 2007
    Assignee: Otis Elevator Company
    Inventors: Leandre Adifon, Richard J. Ericson, David Wayne Jones, Armando Servia, Jose Sevilleja