Patents by Inventor Kung-Hsiung Wu

Kung-Hsiung Wu 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: 5509673
    Abstract: An armrest-driven wheelchair in which the armrests are pivoted to the wheelchair frame and turned turned back and forth about a respective pivot to rotate the wheels forwards or backwards by a respective transmission rod, which is driven by the respective armrest to connect a first bearing means, which is driven to turn the respective wheel forwards, or a second bearing means, which is driven to turn the respective wheel backwards, to the respective armrest.
    Type: Grant
    Filed: February 1, 1995
    Date of Patent: April 23, 1996
    Inventors: Kung-Hsiung Wu, Hsiu-Fong Hsu
  • Patent number: 5244051
    Abstract: A steerable driving device includes a driving rod rotatably mounted in a sleeve fixed on a bracket detachably secured on a central portion of a wheelchair, a handle secured on a crank arm perpendicularly secured to the driving rod, a driving wheel rotatably mounted on a front fork formed on a lower portion of the driving rod, and a driving motor electrically driven by a battery carried on the wheelchair, whereby upon a steering of the driving device by gripping the handle, the wheelchair may be driven steerably conveniently.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: September 14, 1993
    Inventor: Kung-Hsiung Wu