Patents by Inventor CHUAN-CHENG LIAO

CHUAN-CHENG LIAO 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).

  • Publication number: 20090021386
    Abstract: The cushion device mainly contains a flat body member containing a pad on top of a base. The base has an indentation on a top side for accommodating a pressure activation member. The pressure activation member contains a first disc resiliently supported on a top side of a second disc by a number of resilient elements. A number of sensitive switches are also provided on the top side of the second disc. The switches turn on a timing element by the descent first disc and then turn the timing element off when the first disc is restored to its original position by the resilient elements. A number of reminding elements such as a vibrator, a sound generator, and a light generator are connected to and commanded by the timing element to produce vibrations, sounds or voices, or lighting after a preset period of time.
    Type: Application
    Filed: July 11, 2008
    Publication date: January 22, 2009
    Inventor: CHUAN-CHENG LIAO