Patents by Inventor Chien-Huang Chuang

Chien-Huang Chuang 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).

  • Two-in-one temperature and pressure gauge
    Patent number: 7469591
    Abstract: A two-in-one temperature and pressure gauge is constituted primarily by a shell, a housing, a score panel, a needle set, a temperature sensing mechanism, and a pressure sensing mechanism. The needle set includes two needles which are coaxially installed, with one needle being connected with the temperature sensing mechanism, and the other needle being connected with the pressure sensing mechanism. The invention can be both used as the temperature gauge and the pressure gauge at a same time, a space for installing gauge sets can be decreased, and manufacturing cost can be reduced.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: December 30, 2008
    Inventor: Chien-Huang Chuang