Patents by Inventor CHENGXIN DU

CHENGXIN DU 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).

  • Device and method of recoil reduction for air guns
    Patent number: 10767959
    Abstract: The present invention relates to a recoil reduction air gun and a method of reducing recoil of air guns when discharging. Said recoil reduction air gun comprises a cylinder that is slidably mounted to a main body of said air gun, and a recoil reduction device that is provided between the cylinder and a stock. Said recoil reduction device further comprises a recoil reduction spring seat, a first and a second springs, and a recoil rod.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: September 8, 2020
    Assignee: XISICO USA, INC
    Inventors: Xiaoping Ji, Yecheng Wu, Xiaoqiang Sheng, Shengping Zeng, Fuying Ji, Ye Sun, Chengxin Du
  • Device and Method of Recoil Reduction for Air Guns
    Publication number: 20170184372
    Abstract: The present invention relates to a recoil reduction air gun and a method of reducing recoil of air guns when discharging. Said recoil reduction air gun comprises a cylinder that is slidably mounted to a main body of said air gun, and a recoil reduction device that is provided between the cylinder and a stock. Said recoil reduction device further comprises a recoil reduction spring seat, a first and a second springs, and a recoil rod.
    Type: Application
    Filed: December 29, 2015
    Publication date: June 29, 2017
    Applicants: XISICO USA, INC., UMAREX USA, INC.
    Inventors: XIAOPING JI, YECHENG WU, XIAOQIANG SHENG, SHENGPING ZENG, FUYING JI, YE SUN, CHENGXIN DU