Patents by Inventor Yuanfa Shi

Yuanfa 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).

  • Publication number: 20190271460
    Abstract: An embedded LED downlight disclosed herein includes a main housing and a junction box fixedly connected to each other, wherein the main housing is of cylindrical structure having an open end, a closed end and an accommodating space formed therein; a light transmission component is fixed to an opening at the open end; an LED light-emitting assembly and an IC constant-current power supply are disposed in the accommodating space; the closed end of the main housing is fixedly connected to the junction box; spring clips are hinged at symmetrical positions on an outer circumferential surface of the main housing close to the opening, respectively; and the main housing and the junction box are both made of flame-resistant plastic material at a fireproofing grade of 5VA.
    Type: Application
    Filed: May 31, 2018
    Publication date: September 5, 2019
    Inventors: Jianhua Qi, Yuanfa Shi
  • Patent number: 10393359
    Abstract: An embedded LED downlight disclosed herein includes a main housing and a junction box fixedly connected to each other, wherein the main housing is of cylindrical structure having an open end, a closed end and an accommodating space formed therein; a light transmission component is fixed to an opening at the open end; an LED light-emitting assembly and an IC constant-current power supply are disposed in the accommodating space; the closed end of the main housing is fixedly connected to the junction box; spring clips are hinged at symmetrical positions on an outer circumferential surface of the main housing close to the opening, respectively; and the main housing and the junction box are both made of flame-resistant plastic material at a fireproofing grade of 5VA.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: August 27, 2019
    Assignee: SHANGHAI HAIFENG ELECTRICAL LIGHTING CO., LTD
    Inventors: Jianhua Qi, Yuanfa Shi