Patents by Inventor Yun-Chian Li

Yun-Chian Li 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).

  • Respiratory tube without fastening assemblies
    Patent number: 6981500
    Abstract: A front-worn respiratory tube without fastening assemblies namely fastening rings, hooks, buttons, clamps, sheaths or strips, includes a head-top-portion tube, a forehead-portion tube, a mouth-eyebrow-portion tube, a mouthpiece and a fish-mouth-shaped mouthpiece in a downward direction in sequence. Wherein, the aforesaid five parts are either wedge-type structures or join-type structures at three parts (from the head-top-portion tube to the forehead-portion tube, from the forehead-portion tube to the mouth-eyebrow-portion tube, and from the mouth-eyebrow-portion tube to the mouthpiece portion). The forehead-portion tube utilizes water drag force to have the tube steadily staying close to the user's head. A water-drop-shaped sectional area at the head-top-portion tube is capable of minimizing water drag. The aforesaid structure according to the invention is adaptable to head dimensions and a height of a nose tip of the user.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: January 3, 2006
    Inventors: Yun-Chian Li, Kuang-Jeng Lee, Kuang-Yin Lee, Jen-Yin Liu
  • Respiratory tube without fastening assemblies
    Publication number: 20050087192
    Abstract: A front-worn respiratory tube without fastening assemblies namely fastening rings, hooks, buttons, clamps, sheaths or strips, includes a head-top-portion tube, a forehead-portion tube, a mouth-eyebrow-portion tube, a mouthpiece and a fish-mouth-shaped mouthpiece in a downward direction in sequence. Wherein, the aforesaid five parts are either wedge-type structures or join-type structures at three parts (from the head-top-portion tube to the forehead-portion tube, from the forehead-portion tube to the mouth-eyebrow-portion tube, and from the mouth-eyebrow-portion tube to the mouthpiece portion). The forehead-portion tube utilizes water drag force to have the tube steadily staying close to the user's head. A water-drop-shaped sectional area at the head-top-portion tube is capable of minimizing water drag. The aforesaid structure according to the invention is adaptable to head dimensions and a height of a nose tip of the user.
    Type: Application
    Filed: October 24, 2003
    Publication date: April 28, 2005
    Inventors: Yun-Chian Li, Kuang-Jeng Lee, Kuang-Yin Lee, Jen-Yin Liu