Patents by Inventor Chao-Hsiung Tsai

Chao-Hsiung 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).

  • Musical dancing block set
    Patent number: 4924743
    Abstract: A block set includes a plurality of sounding blocks which can be optionally arranged and each block is provided an electronic or a mechanical sounding device in the block so that upon a treading on an individual block by a player's foot, the sounding block can be actuated to produce musical sound with respect to a specific scale note and upon a continuous treading on the plural blocks, a complete musical composition or song can be finished.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: May 15, 1990
    Inventor: Chao-Hsiung Tsai
  • Footwear having single-layer ventilating and massaging insole
    Patent number: 4831749
    Abstract: A footwear includes a ventilating and massaging insole having a plurality of upper beads protruding upwardly to touch a wearer's foot and a plurality of lower beads protruding downwardly to ride on a footwear sole so that upon a dpression of a wearer's foot on the insole, an air flow will be pumped through holes each hole formed between each upper bead and each lower bead for ventilating the wearer's foot and for massaging the same.
    Type: Grant
    Filed: August 2, 1988
    Date of Patent: May 23, 1989
    Assignee: Jiuh Lung Enterprise Co., Ltd.
    Inventor: Chao-Hsiung Tsai
  • Axle-variating means for eccentric and concentric wheel
    Patent number: 4755005
    Abstract: A hub of a bike or multiple-wheel cycle is formed with an eccentric wheel or axle in the hub and the eccentric axle having a chain sprocket thereon rotatably mounted with a spindle fixed on a frame fork so that upon the rotation of the axle, the hub and any rear or front wheel secured on the hub will be rotated eccentrically to cause a cam-like action to mimic a horse-riding so as to spur the player or rider interest.
    Type: Grant
    Filed: April 29, 1987
    Date of Patent: July 5, 1988
    Inventor: Chao-Hsiung Tsai