Patents by Inventor Wen Wan Tsai

Wen Wan Tsai 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: 6918861
    Abstract: An exerciser includes a foot support disposed on a base to support feet of users, a handle rotatably attached to the base with a shaft, a pulley secured to the handle, and a seat rotatably supported on the pulley to rotatably support the users. A cable may be coupled between the pulley and the foot support, to selectively couple the foot support to the handle via the pulley. The foot support includes a lever pivotally secured on the base, and the cable includes two ends coupled to the ends of the lever with brackets. Each of the brackets includes an end panel having a passage to receive a tube of a barrel which includes a passageway to receive the ends of the cable.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: July 19, 2005
    Inventors: Chung Min Liao, Wen Wan Tsai