Patents by Inventor Qingqing HU

Qingqing HU 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).

  • Grinder for grinding end face of fiber
    Patent number: 9757839
    Abstract: A grinder for grinding an end face of a fiber includes a housing, a fiber fixing module, a base, a transmission shaft, and a grinding pad. The housing includes an annular rack wheel with an internal engaging teeth. The fiber fixing module is positioned on a top of the housing. The base is positioned at a bottom of the housing and includes an eccentric connection portion. An end of the transmission shaft is connected to the connection portion. The transmission shaft is sleeved with an annular pinion having external engaging teeth engaging with the internal engaging teeth. The grinding pad is connected to another end of the transmission shaft and revolves around the rotation axis of the base and rotates around its own rotation axis together with the transmission shaft and matches an end face of a to-be-ground fiber penetrating the fiber fixing module.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: September 12, 2017
    Assignee: SUNSEA TELECOMMUNICATIONS CO., LTD.
    Inventors: Qiyue Wang, Xinjun Chen, Qingqing Hu
  • GRINDER FOR GRINDING END FACE OF FIBER
    Publication number: 20170100816
    Abstract: A grinder for grinding an end face of a fiber includes a housing, a fiber fixing module, a base, a transmission shaft, and a grinding pad. The housing includes an annular rack wheel with an internal engaging teeth. The fiber fixing module is positioned on a top of the housing. The base is positioned at a bottom of the housing and includes an eccentric connection portion. An end of the transmission shaft is connected to the connection portion. The transmission shaft is sleeved with an annular pinion having external engaging teeth engaging with the internal engaging teeth. The grinding pad is connected to another end of the transmission shaft and revolves around the rotation axis of the base and rotates around its own rotation axis together with the transmission shaft and matches an end face of a to-be-ground fiber penetrating the fiber fixing module.
    Type: Application
    Filed: December 21, 2016
    Publication date: April 13, 2017
    Inventors: Qiyue WANG, Xinjun CHEN, Qingqing HU
  • Doorbell case
    Patent number: D1011945
    Type: Grant
    Filed: July 31, 2023
    Date of Patent: January 23, 2024
    Inventor: Qingqing Hu