Patents by Inventor Qingqiang Ma

Qingqiang Ma 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).

  • Publication number: 20220164940
    Abstract: A device for analyzing or inspecting a prepared portion of a power cable includes a cable gripping section to grip a portion of the power cable proximate to a prepared end of the power cable, where the cable end has been prepared by removing certain portions of the power cable so that it can properly accept an electrical or cable accessory, such as a splice or termination. The device also includes an imaging device holding section to hold an imaging device at a predetermined radial distance from the prepared cable end. In particular, the imaging device holding section is radially and axially adjustable in position. During inspection of the prepared cable end, the imaging device is fully rotated about the prepared cable end to acquire a 360 degree image of the prepared cable end.
    Type: Application
    Filed: April 10, 2019
    Publication date: May 26, 2022
    Inventors: Cecil V. Francis, Sally M. Grambusch, Robert A, Hale, Qingqiang Ma, Dougtas B. Gundel, Huo Ying Lu
  • Patent number: 9502877
    Abstract: The present invention provides an inlet funnel (100) for cable terminal, which comprises a funnel body part (10) and a fixation part (20). The funnel body part (10) has one end with a smaller opening and the other end with a larger opening, said funnel body (10) having a gradually increasing diameter (D) from said one end with the smaller opening to said other end with the larger opening, and the funnel body (10) is suitably to be installed over an electrical cable (C). The fixation part (20) is provided at said other end with the larger opening of said funnel body part (10) and adapted for the attachment of said inlet funnel (100). The inlet funnel (100) further comprises a pretreated mounting part (30) extending from said one end side with the smaller opening towards said the other end side with the larger opening. Accordingly, the inlet funnel for cable terminal according to the present invention may reduce workload, save time, and simplify the mounting process.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: November 22, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Qingqiang Ma, Huawei Liu, Gaofei Guo, Zhigang Xu, Jinquan Yang, Zheng Huang, Jiangjiang Ma