Patents by Inventor Cuihua Chen

Cuihua Chen 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).

  • Patent number: 11326318
    Abstract: Provided is a lateral water intake structure for preventing silting of bed load and floating debris, which is provided at a river bank. The lateral water intake structure includes: a diversion canal, a guiding wall structure, a shaft-shaped water intaking space, and a trash rack. The lateral water intake structure functions to prevent the floating debris from gathering at the surface of the trash rack and reduce a risk that the trash rack is damaged by water pressure and hitting of the floating debris. Meanwhile, by using a water flow in the watercourse to continuously wash the floating debris near the trash rack, maintenance costs of removing the floating debris at the trash rack manually or mechanically can be reduced.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: May 10, 2022
    Assignees: China Institute of Water Resources and Hydropower Research, China Yangtze Power Co., Ltd.
    Inventors: Dangwei Wang, Anjun Deng, Ye Yin, Qingchao Guo, Xinlei Guo, Tianjie Lei, Hantao Wang, Cuihua Chen, Hongling Shi, Qin Lu
  • Publication number: 20220064888
    Abstract: Provided is a lateral water intake structure for preventing silting of bed load and floating debris, which is provided at a river bank. The lateral water intake structure includes: a diversion canal, a guiding wall structure, a shaft-shaped water intaking space, and a trash rack. The lateral water intake structure functions to prevent the floating debris from gathering at the surface of the trash rack and reduce a risk that the trash rack is damaged by water pressure and hitting of the floating debris. Meanwhile, by using a water flow in the watercourse to continuously wash the floating debris near the trash rack, maintenance costs of removing the floating debris at the trash rack manually or mechanically can be reduced.
    Type: Application
    Filed: January 14, 2021
    Publication date: March 3, 2022
    Inventors: Dangwei Wang, Anjun Deng, Ye Yin, Qingchao Guo, Xinlei Guo, Tianjie Lei, Hantao Wang, Cuihua Chen, Hongling Shi, Qin Lu
  • Patent number: 9914205
    Abstract: An auxiliary handle for removable connection with a housing of an electric tool having a first engaging portion, a second engaging portion and a third engaging portion. The auxiliary handle includes a handling portion, a fixing portion and a locking portion. The handling portion enables the user to handle the auxiliary handle and operate the locking portion. The fixing portion is engaged with the first engaging portion and the second engaging portion so as to connect the auxiliary handle to the housing. The locking portion interacts with the third engaging portion so as to lock the auxiliary handle.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: March 13, 2018
    Assignee: Chervon (HK) Limited
    Inventors: Cuihua Chen, Shubin Tong
  • Patent number: 9908232
    Abstract: A torsion output tool has a housing, a motor and a transmission assembly. The transmission assembly includes a first planetary gear train. The first planetary gear train has a first planetary gear carrier, a first level planetary gear, a first inner ring gear disposed outside the first level planetary gear and meshing therewith, and a first central wheel sliding in a direction of a first axis to a first position and a second position. The transmission assembly further has a locking member. The locking member slides synchronously with the first central wheel and only locks the relative circumferential positions of the output shaft and the first planetary gear carrier when the first central wheel is at the first position and only constitutes circumferential engagement with the first planetary gear carrier when the first central wheel is at the second position to achieve a drilling mode and an impact mode of operation for the tool.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: March 6, 2018
    Assignee: Chervon (HK) Limited
    Inventor: Cuihua Chen
  • Publication number: 20150375387
    Abstract: A torsion output tool has a housing, a motor and a transmission assembly. The transmission assembly includes a first planetary gear train. The first planetary gear train has a first planetary gear carrier, a first level planetary gear, a first inner ring gear disposed outside the first level planetary gear and meshing therewith, and a first central wheel sliding in a direction of a first axis to a first position and a second position. The transmission assembly further has a locking member. The locking member slides synchronously with the first central wheel and only locks the relative circumferential positions of the output shaft and the first planetary gear carrier when the first central wheel is at the first position and only constitutes circumferential engagement with the first planetary gear carrier when the first central wheel is at the second position to achieve a drilling mode and an impact mode of operation for the tool.
    Type: Application
    Filed: June 25, 2015
    Publication date: December 31, 2015
    Inventor: Cuihua Chen
  • Publication number: 20150306758
    Abstract: An accessory device for a power tool includes a first moving member, a second moving member, a functioning member associated with at least one of the first moving member and the second moving member, and a connecting assembly for connecting the first moving member and the second moving member. The first moving member is provided with a first installing member and the second moving member is provided with a second installing member. The first installing member and the second installing member are located in an installation state when the first moving member and the second moving member are moved towards each other to a preset position. The connecting assembly forces the first moving member and the second moving member to move simultaneously in a straight direction to enable the first installing member and the second installing member to be moved into or out of the installation state.
    Type: Application
    Filed: April 16, 2015
    Publication date: October 29, 2015
    Inventors: Cuihua Chen, Shubin Tong
  • Publication number: 20150107865
    Abstract: An auxiliary handle for removable connection with a housing of an electric tool having a first engaging portion, a second engaging portion and a third engaging portion. The auxiliary handle includes a handling portion, a fixing portion and a locking portion. The handling portion enables the user to handle the auxiliary handle and operate the locking portion. The fixing portion is engaged with the first engaging portion and the second engaging portion so as to connect the auxiliary handle to the housing. The locking portion interacts with the third engaging portion so as to lock the auxiliary handle.
    Type: Application
    Filed: October 20, 2014
    Publication date: April 23, 2015
    Inventors: Cuihua Chen, Shubin Tong