Patents by Inventor Ya-Chien Chuang

Ya-Chien 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).

  • Concentration detector and fuel supplier with said detector
    Patent number: 7404323
    Abstract: A concentration detector is disclosed, which is adapted to detect a concentration of a liquid fuel in a container. The concentration detector includes a rotating means positioned underneath a level of a liquid fuel and rotatable at an angle ? on a X-Y plane. The rotating means includes at least three floating objects connected with each other. Each floating object has a specific gravity less than a specific gravity of the liquid fuel ?. The floating objects are balanced according to a torque equation, F(?,?)=0, such that the rotating means is still under the level of the liquid fuel. While a concentration of the liquid fuel is changed and the angle ? of the rotating means is detected, the specific gravity of the liquid fuel ? is obtained from the torque equation, F(?,?)=0, and thereby computing the concentration of the liquid fuel.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: July 29, 2008
    Assignee: Antig Technology Co., Ltd.
    Inventors: Hsi-Ming Shu, Feng-Yi Deng, Yu-Lin Tang, Ya-Chien Chuang, Yi-Hsien Chen
  • CONCENTRATION DETECTOR AND FUEL SUPPLIER WITH SAID DETECTOR
    Publication number: 20070113624
    Abstract: A concentration detector is disclosed, which is adapted to detect a concentration of a liquid fuel in a container. The concentration detector includes a rotating means positioned underneath a level of a liquid fuel and rotatable at an angle ? on a X-Y plane. The rotating means includes at least three floating objects connected with each other. Each floating object has a specific gravity less than a specific gravity of the liquid fuel ?. The floating objects are balanced according to a torque equation, F(?,?)=0, such that the rotating means is still under the level of the liquid fuel. While a concentration of the liquid fuel is changed and the angle ? of the rotating means is detected, the specific gravity of the liquid fuel ? is obtained from the torque equation, F(?,?)=0, and thereby computing the concentration of the liquid fuel.
    Type: Application
    Filed: November 21, 2006
    Publication date: May 24, 2007
    Inventors: Hsi-Ming Shu, Feng-Yi Deng, Yu-Lin Tang, Ya-Chien Chuang, Yi-Hsien Chen