Patents by Inventor Frank W. Adams

Frank W. Adams 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 between elevator car and hoistway sidewall
    Patent number: 7874404
    Abstract: An elevator system includes a hoistway defined by a surrounding structure. An elevator car and counterweight are located in the hoistway, and a drive motor is located between the elevator car and a sidewall of the hoistway. The drive motor drivingly couples and suspends the elevator car and counterweight via at least one flat rope or belt.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: January 25, 2011
    Assignee: Otis Elevator Company
    Inventors: Frank W. Adams, Leandre Adifon, Pedro Baranda, Marc Chevilliard, Jean-Noel Cloux, Masashi Kawarasaki, Yutaka Matsumoto, Jean-Pierre Menard, Jean-Pierre Pougny, Bruce St. Pierre
  • Hoistway access detection system
    Patent number: 6603398
    Abstract: An improved hoistway access detection system including three safety chains, one for monitoring door position on the even numbered floors, one for monitoring door position on the odd numbered floors, and one for monitoring the position of the pit door, wherein an elevator car is slowly moved to the alternate floor upon detection and subsequent closure of an open pit door and any landing door.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: August 5, 2003
    Assignee: Otis Elevator Company
    Inventors: Helio Tinone, Frank W. Adams
  • HOISTWAY ACCESS DETECTION SYSTEM
    Publication number: 20030094332
    Abstract: An improved hoistway access detection system including three safety chains, one for monitoring door position on the even numbered floors, one for monitoring door position on the odd numbered floors, and one for monitoring the position of the pit door, wherein an elevator car is slowly moved to the alternate floor upon detection and subsequent closure of an open pit door and any landing door.
    Type: Application
    Filed: November 16, 2001
    Publication date: May 22, 2003
    Applicant: Otis Elevator Company
    Inventors: Helio Tinone, Frank W. Adams