Patents by Inventor Chuanwen Shi

Chuanwen Shi 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: 9212777
    Abstract: A quick clamping device, including a semi-circular base and a screw running through the bottom part of the base. One end of the screw extends out of the base and is connected to an eccentric wheel via a conical shaft pin. The eccentric wheel is provided with a handle. On the screw, a fixture block and a wedged sliding block are provided, with the wedged sliding block being adjacent to the eccentric wheel and the fixture block being adjacent to the wedged sliding block. The top part of one end of the base is connected to a buckle via two connecting blocks and the top part of the other end of the base is connected to a top cover. A protruding block is provided on the top of the top cover. The free end of the buckle is provided with a groove that matches the protruding block.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: December 15, 2015
    Inventor: Chuanwen Shi
  • Publication number: 20140003862
    Abstract: This invention relates to a type of quick clamping device, including a semi-circular base and a screw penetrating bottom part of said base. One end of said screw extends out of said base and is connected to an eccentric wheel via a conical shaft pin. Said eccentric wheel is provided with a handle. On said screw, a fixture block and a wedged sliding block are installed, with said wedged sliding block adjacent to said eccentric wheel and said fixture block adjacent to said wedged sliding block. Top part of one end of said base is connected to a buckle via two connecting blocks and top part of the other end of said base is connected to a top cover. A protruding block is provided on top of said top cover. Free end of said buckle is provided with a groove that matches said protruding block.
    Type: Application
    Filed: April 16, 2012
    Publication date: January 2, 2014
    Inventor: Chuanwen Shi
  • Patent number: D893662
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: August 18, 2020
    Inventor: Chuanwen Shi
  • Patent number: D897480
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: September 29, 2020
    Inventor: Chuanwen Shi
  • Patent number: D937059
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: November 30, 2021
    Inventor: Chuanwen Shi