Patents by Inventor Xue-Qing Liu

Xue-Qing Liu 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: 9941650
    Abstract: A plug includes a housing, a rotating mechanism, and a pair of pins. The rotating mechanism has a holding member, and a rotating member. The holding member is secured in the housing, and has an elastic arcuate portion having a plurality of recesses. The rotating member is rotatable relative to the holding member, and has a projection mating with each of the recesses of the arcuate portion of the holding member. The pair of pins are secured to the rotating member. The projection of the rotating member is movable along the arcuate portion of the holding member and presses the arcuate portion such that the arcuate portion is elastically deformed until the projection engages one of the recesses of the arcuate portion. When the projection engages one of the recesses, the rotating member and the pair of pins are held in a specific orientation.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: April 10, 2018
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Li-Wen Tien, Xue-Qing Liu, Run-Sun Zeng
  • Publication number: 20170346249
    Abstract: A plug includes a housing, a rotating mechanism, and a pair of pins. The rotating mechanism has a holding member, and a rotating member. The holding member is secured in the housing, and has an elastic arcuate portion having a plurality of recesses. The rotating member is rotatable relative to the holding member, and has a projection mating with each of the recesses of the arcuate portion of the holding member. The pair of pins are secured to the rotating member. The projection of the rotating member is movable along the arcuate portion of the holding member and presses the arcuate portion such that the arcuate portion is elastically deformed until the projection engages one of the recesses of the arcuate portion. When the projection engages one of the recesses, the rotating member and the pair of pins are held in a specific orientation.
    Type: Application
    Filed: May 26, 2017
    Publication date: November 30, 2017
    Inventors: LI-WEN TIEN, XUE-QING LIU, RUN-SUN ZENG
  • Patent number: 9716329
    Abstract: A high-safety electrical plug includes a plug body, a rotation element, and at least one plug pin. The rotation element is rotatably arranged on the plug body, and the at least one plug pin is arranged on the rotation element. The rotation element includes an elastic element and a rotation body standing with the elastic element. The rotation body includes two axial cylinders opposite each other and a position limiting element. The two cylinders are formed on the rotation body. The position limiting element defines more than two side surfaces. One side surface connects with the elastic element, deforming the elastic element. The rotation body is rotated until the side surface previously connected with the elastic element is replaced by another side surface to connect with the elastic element, which fixes the rotation body on the elastic element after the rotation.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: July 25, 2017
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Li-Wen Tien, Xue-Qing Liu, Run-Sun Zeng