Patents by Inventor Chih Way Liu

Chih Way Liu 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).

  • Elevating mechanism for furniture
    Patent number: 7487690
    Abstract: An elevating mechanism for furniture installed in a height adjustable article of furniture includes a transmission unit and a rotary handle. The transmission unit utilizes a plurality of cylindrical gears mounted on respective shafts, such that the cylindrical gears will be engaged and rotate simultaneously. A rotary handle serves to activate a rotation of a bolt with respect to a still nut and an upward or downward motion of the article connected to the bolt with respect to the article on which the nut is mounted.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: February 10, 2009
    Inventor: Chih Way Liu