Patents by Inventor Tseng-Ming Chen

Tseng-Ming 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).

  • Waterproof case
    Patent number: 5942728
    Abstract: A waterproof case for receiving a circuit board includes a housing, a cover and a waterproof washer. The inner edge of the opening end of the housing is formed into a slant inner edge, and a closed end of the housing is provided with supporting members for supporting the circuit board. The cover is attached to the opening end of the housing, and has an annular flange for mounting the waterproof washer, mounting members for mounting the circuit board, and a through hole for wires. When fixing the cover onto the housing by appropriate fastening members, the waterproof washer will be pushed by the cover and abut against the slant inner edge, and thereby achieve the seal between the cover and the housing.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: August 24, 1999
    Assignee: Weltek Electronics Co., Ltd.
    Inventor: Tseng-Ming Chen
  • Waterproof case
    Patent number: D404722
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: January 26, 1999
    Assignee: Weltek Electronics Co., Ltd.
    Inventor: Tseng-Ming Chen