Patents by Inventor Chin H. Hsieh

Chin H. Hsieh 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: 5224685
    Abstract: A power-saving controller for toilet flushing includes a passive pyroelectricity detecting device connected to a microcomputer, which is further connected to an active infrared detecting device, and a switch device such that when a user is nearby the toilet in a relatively long distance, the passive detecting pyroelectricity detecting device will respond to generate a first triggering signal to the microcomputer, which in turn generates a second triggering signal to actuate the active infrared detecting device to detect whether a user is using the toilet, if so, then the active infrared detecting device will respond to generate a third triggering signal to feed back to the microcomputer, which in turn enables a timer to count therein, until the user leaves the toilet position, causing the third triggering signal to terminate, which in turn triggers the microcomputer to programmably generate a fourth triggering signal to turn on the switch device, which in turns activates a pumping motor connected thereto to p
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: July 6, 1993
    Inventors: Sing Chiang, Chin H. Hsieh
  • Patent number: 5033715
    Abstract: A faucet includes a sensing/driving assembly having a transmitting/sensing unit electrically connected with a driving device. A driving shaft of the driving device is connected with an actuating device. The actuating device has an actuating stud which depresses a plate having a valve member to control the opening and closing of the faucet.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: July 23, 1991
    Inventors: Sing Chiang, Chin H. Hsieh