Patents by Inventor LiuDi Gong

LiuDi Gong 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).

  • Traction system for elevator and elevator system
    Patent number: 11203511
    Abstract: An elevator traction system and an elevator system. The elevator traction system includes: a car side wheel train; a transition wheel train; a counter-weight side wheel train; and a rope including a first end and a second end that are fixed to the top of a hoistway, the rope passing through the car side wheel train, the transition wheel train, and the counter-weight side wheel train sequentially, the car side wheel train including a first sheave and a third sheave that are fixed to the top of a car and a second sheave that is fixed to the top of the hoistway, wherein the first sheave and the third sheave are arranged to be parallel to each other and perpendicular to the second sheave. The elevator traction system and the elevator system according to embodiments of the present invention have a compact layout and a high hoistway utilization rate.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: December 21, 2021
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: WeiHua Yuan, Changke Yang, LiuDi Gong
  • TRACTION SYSTEM FOR ELEVATOR AND ELEVATOR SYSTEM
    Publication number: 20190127182
    Abstract: An elevator traction system and an elevator system. The elevator traction system includes: a car side wheel train; a transition wheel train; a counter-weight side wheel train; and a rope including a first end and a second end that are fixed to the top of a hoistway, the rope passing through the car side wheel train, the transition wheel train, and the counter-weight side wheel train sequentially, the car side wheel train including a first sheave and a third sheave that are fixed to the top of a car and a second sheave that is fixed to the top of the hoistway, wherein the first sheave and the third sheave are arranged to be parallel to each other and perpendicular to the second sheave. The elevator traction system and the elevator system according to embodiments of the present invention have a compact layout and a high hoistway utilization rate.
    Type: Application
    Filed: October 24, 2018
    Publication date: May 2, 2019
    Inventors: WeiHua Yuan, Changke Yang, LiuDi Gong