Patents by Inventor Fu Hua Chen

Fu Hua Chen 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: 8100705
    Abstract: A safety door for use with a rotatable power supply socket having a mounting base with plugging holes therein. The safety door includes first, second and third sliding parts, and an elastic assembly. The safety door includes three rectangular plugging holes, a left-hand, middle and right-hand plugging hole, and two ground plugging holes, upper and lower. While sliding in a rail slot of the mounting base, the first sliding part can block the left-hand plugging hole while sliding along the left-right direction, the second sliding part can block the right-hand plugging hole while sliding along the left-right direction; the third sliding part can block or expose the middle plugging hole while sliding along the left-right direction. The elastic assembly includes a first elastic part for providing returning elastic force to the first sliding part and a second elastic part for providing returning elastic force to the second sliding part.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: January 24, 2012
    Assignee: Wenzhou MTLC Electric Appliances Co., Ltd.
    Inventors: Fu Hua Chen, Lidong Ni, Chongguang Zhang
  • Publication number: 20100317208
    Abstract: A safety door for a rotatable power supply socketincludes a mounting base with composite plugging holes, first, second and third sliding parts, and an elastic assembly. The composite plugging holes include a left-hand, middle and right-hand plugging hole, and an upper and lower ground plugging hole. While sliding in a rail slot of the mounting base, the first sliding part can block the left-hand plugging hole while sliding along the left-right direction, the second sliding part can block the right-hand plugging hole while sliding along the left-right direction; the third sliding part can block or expose the middle plugging hole while sliding along the left-right direction. The elastic assembly includes a first elastic part for providing returning elastic force to the first sliding part and a second elastic part for providing returning elastic force to the second sliding part.
    Type: Application
    Filed: February 3, 2010
    Publication date: December 16, 2010
    Applicant: WENZHOU MTLC ELECTRIC APPLIANCE CO., LTD.
    Inventors: Fu Hua Chen, Lidong Ni, Chongguang Zhang