Patents by Inventor Win-Tai Cheng

Win-Tai Cheng 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).

  • Pressure alarm device
    Patent number: 6892570
    Abstract: The present invention discloses a pressure alarm device comprising a first thread section defined in a connector of a connecting base for fixing an air nozzle of a tire by a screw, and a second thread section for fixing a valve nozzle by a screw; a flexible film disposed between said second thread section and said isolating base, and the film is fixed into a position by the valve nozzle; a conductive wire comprising an annular conductive ring with an upper surface and two conductor stands correspondingly disposed with an appropriate distance apart under the conductive ring.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: May 17, 2005
    Inventor: Win-Tai Cheng
  • Pressure alarm device
    Publication number: 20040263339
    Abstract: The present invention discloses a pressure alarm device comprising a first thread section defined in a connector of a connecting base for fixing an air nozzle of a tire by a screw, and a second thread section for fixing a valve nozzle by a screw; a flexible film disposed between said second thread section and said isolating base, and the film is fixed into a position by the valve nozzle; a conductive wire comprising an annular conductive ring with an upper surface and two conductor stands correspondingly disposed with an appropriate distance apart under the conductive ring.
    Type: Application
    Filed: June 27, 2003
    Publication date: December 30, 2004
    Inventor: Win-Tai Cheng