Patents by Inventor Rob Hammell

Rob Hammell 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).

  • Racetrack style passenger conveyor
    Patent number: 6640957
    Abstract: A passenger conveyor system is arranged along a path in a racetrack fashion. Drive members associated with lateral edges of each pallet step surface move with the pallets through straight sections of the path to avoid relative movement between the pallets and adjacent structure. During turnaround sections, where the pallets are beneath a floor surface, the drive members move relative to each other, with one set of drive members becoming temporarily disconnected from each other, to permit the pallets to make a transition and a turnaround. In the illustrated example, a drive mechanism cooperates with at least one set of the drive members to transmit a motive force to propel the pallets along the path.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: November 4, 2003
    Assignee: Otis Elevator Company
    Inventors: Richard Fargo, Frank Sansevero, Rob Hammell, David Jarvis
  • Racetrack style passenger conveyor
    Publication number: 20030116403
    Abstract: A passenger conveyor system is arranged along a path in a racetrack fashion. Drive members associated with lateral edges of each pallet step surface move with the pallets through straight sections of the path to avoid relative movement between the pallets and adjacent structure. During turnaround sections, where the pallets are beneath a floor surface, the drive members move relative to each other, with one set of drive members becoming temporarily disconnected from each other, to permit the pallets to make a transition and a turnaround. In the illustrated example, a drive mechanism cooperates with at least one set of the drive members to transmit a motive force to propel the pallets along the path.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 26, 2003
    Inventors: Richard Fargo, Frank Sansevero, Rob Hammell, David Jarvis