Patents by Inventor Kim Ngoc Trinh

Kim Ngoc Trinh 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 car position sensing system
    Patent number: 6701277
    Abstract: A system of sensing elevator car position is presented that dynamically compensates for problems due to frictional slippage of its mechanical connection and/or building settlement. The system comprises an elevator car within an elevator hoistway. An encoder is mounted within the elevator hoistway and mechanically connected to the elevator car. The mechanical connection drives the encoder which generates data indicative of the position of the elevator car. Either one of a position sensor and a position sensor actuator is mounted to a landing of the hoistway. The other one of the position sensor and position sensor actuator is mounted to the elevator car. The position sensor generates data indicative of the elevator car floor reaching a predetermined distance from the elevator landing when actuated by the position sensor actuator. An elevator position controller receives the data generated by both the position sensor and the encoder.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: March 2, 2004
    Assignee: Otis Elevator Company
    Inventors: Steven D. Coste, Jason S. Stone, Julian H. Shull Jr., Richard Schafer, Kim Ngoc Trinh, William G. Edgar, Carl Heldwein
  • Elevator car position sensing system
    Patent number: 6526368
    Abstract: A system of sensing elevator car position is presented that dynamically compensates for problems due to frictional slippage of its mechanical connection and/or building settlement. The system comprises an elevator car within an elevator hoistway. An encoder is mounted within the elevator hoistway and mechanically connected to the elevator car. The mechanical connection drives the encoder which generates data indicative of the position of the elevator car. Either one of a position sensor and a position sensor actuator is mounted to a landing of the hoistway. The other one of the position sensor and position sensor actuator is mounted to the elevator car. The position sensor generates data indicative of the elevator car floor reaching a predetermined distance from the elevator landing when actuated by the position sensor actuator. An elevator position controller receives the data generated by both the position sensor and the encoder.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: February 25, 2003
    Assignee: Otis Elevator Company
    Inventors: Steven D. Coste, Jason S. Stone, Julian H. Shull, Jr., D. Richard Schafer, Kim Ngoc Trinh, William G. Edgar, Carl Heldwein
  • Elevator car position sensing system
    Publication number: 20020193963
    Abstract: A system of sensing elevator car position is presented that dynamically compensates for problems due to frictional slippage of its mechanical connection and/or building settlement. The system comprises an elevator car within an elevator hoistway. An encoder is mounted within the elevator hoistway and mechanically connected to the elevator car. The mechanical connection drives the encoder which generates data indicative of the position of the elevator car. Either one of a position sensor and a position sensor actuator is mounted to a landing of the hoistway. The other one of the position sensor and position sensor actuator is mounted to the elevator car. The position sensor generates data indicative of the elevator car floor reaching a predetermined distance from the elevator landing when actuated by the position sensor actuator. An elevator position controller receives the data generated by both the position sensor and the encoder.
    Type: Application
    Filed: August 21, 2002
    Publication date: December 19, 2002
    Applicant: Otis Elevator Company
    Inventors: Steven D. Coste, Jason S. Stone, Julian H. Shull,, D. Richard Schafer, Kim Ngoc Trinh, William G. Edgar, Carl Heldwein