Patents by Inventor Guanfu LONG

Guanfu LONG 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).

  • Telephone wire withdrawing device
    Patent number: 9884741
    Abstract: A telephone wire withdrawing device, which is used for achieving the drawing and withdrawing functions of a telephone wire, enabling a smooth operation, thereby improving the usage experience of a user, and avoiding call distortion caused by using an electric brush because it is unnecessary to use the electric brush. The telephone wire withdrawing device in the application includes a slide block, a machine frame, a microphone, a telephone wire, a first roller, a rotating self-locking mechanism, a second roller and an extension spring, wherein the rotating self-locking mechanism is composed of a base, a gear shell, a paddle, a first resilient sheet and a second resilient sheet.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: February 6, 2018
    Assignee: GRG BANKING EQUIPMENT CO., LTD.
    Inventors: Yingfeng Ding, Hexiang Huang, Changhai Wu, Guocheng Shi, Guanfu Long
  • TELEPHONE WIRE WITHDRAWING DEVICE
    Publication number: 20170001828
    Abstract: A telephone wire withdrawing device, which is used for achieving the drawing and withdrawing functions of a telephone wire, enabling a smooth operation, thereby improving the usage experience of a user, and avoiding call distortion caused by using an electric brush because it is unnecessary to use the electric brush. The telephone wire withdrawing device in the application includes a slide block, a machine frame, a microphone, a telephone wire, a first roller, a rotating self-locking mechanism, a second roller and an extension spring, wherein the rotating self-locking mechanism is composed of a base, a gear shell, a paddle, a first resilient sheet and a second resilient sheet.
    Type: Application
    Filed: November 24, 2014
    Publication date: January 5, 2017
    Applicant: GRG Banking Equipment Co., Ltd.
    Inventors: Yingfeng DING, Hexiang HUANG, Changhai WU, Guocheng SHI, Guanfu LONG