Patents by Inventor Xinkai FANG

Xinkai FANG 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).

  • Interlocking control device of multiple-unit train safety circuit
    Patent number: 10192694
    Abstract: An interlocking control device for a multiple-unit safety circuit is provided, which includes: a protective grounding switch control branch which includes: a pantograph rising pneumatic circuit cut-off valve, a protective grounding switch turn-off pneumatic circuit cut-off valve and a protective grounding switch turn-off solenoid valve which are connected in series. When high-voltage equipment of a multiple-unit train is under maintenance or is powered by an external power supply, a protective grounding switch is turned on, cocks of the pantograph rising pneumatic circuit cut-off valve and the protective grounding switch turn-off pneumatic circuit cut-off valve are rotated to open a cover of a key box, the protective grounding switch control branch is disconnected, the protective grounding switch turn-off solenoid valve connected in series in the protective grounding switch control branch is powered off to maintain the protective grounding switch in an on state.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: January 29, 2019
    Assignee: CRRC QINGDAO SIFANG CO., LTD.
    Inventors: Buzhao Niu, Jinghai Jiao, Xinkai Fang, Donghua Wu, Guidong Tao, Guimei Deng
  • INTERLOCKING CONTROL DEVICE OF MULTIPLE-UNIT TRAIN SAFETY CIRCUIT
    Publication number: 20180190443
    Abstract: An interlocking control device for a multiple-unit safety circuit is provided, which includes: a protective grounding switch control branch which includes: a pantograph rising pneumatic circuit cut-off valve, a protective grounding switch turn-off pneumatic circuit cut-off valve and a protective grounding switch turn-off solenoid valve which are connected in series. When high-voltage equipment of a multiple-unit train is under maintenance or is powered by an external power supply, a protective grounding switch is turned on, cocks of the pantograph rising pneumatic circuit cut-off valve and the protective grounding switch turn-off pneumatic circuit cut-off valve are rotated to open a cover of a key box, the protective grounding switch control branch is disconnected, the protective grounding switch turn-off solenoid valve connected in series in the protective grounding switch control branch is powered off to maintain the protective grounding switch in an on state.
    Type: Application
    Filed: November 17, 2016
    Publication date: July 5, 2018
    Applicant: CRRC QINGDAO SIFANG CO., LTD.
    Inventors: Buzhao NIU, Jinghai JIAO, Xinkai FANG, Donghua WU, Guidong TAO, Guimei DENG