Patents by Inventor Cho-Chun CHIU

Cho-Chun CHIU 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).

  • Two-stage differential cycloidal speed reducer with a high reduction ratio
    Patent number: 9005065
    Abstract: A two-stage differential cycloidal speed reducer with a high reduction ratio is provided, including: a plurality of supporting crank shafts; an input shaft including a first crank shaft portion and a second crank shaft portion; a first cycloidal gear provided on the first crank shaft portion; a second cycloidal gear provided on the second crank shaft portion and connected with the first cycloidal gear through the supporting crank shafts; a plurality of first ring pins provided around the outer circumference of the first cycloidal gear and in sliding contact with a plurality of teeth on the periphery of the first cycloidal gear; a first annular gear with the plurality of first ring pins; a plurality of second ring pins provided around the outer circumference of the second cycloidal gear and being in sliding contact with a plurality of teeth on the periphery of the second cycloidal gear; and a second annular gear with the plurality of second ring pins.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: April 14, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Chun-Hung Huang, Chang-Chia Hsieh, Jyh-Jone Lee, Cho-Chun Chiu
  • TWO-STAGE DIFFERENTIAL CYCLOIDAL SPEED REDUCER WITH A HIGH REDUCTION RATIO
    Publication number: 20140018203
    Abstract: A two-stage differential cycloidal speed reducer with a high reduction ratio is provided, including: a plurality of supporting crank shafts; an input shaft including a first crank shaft portion and a second crank shaft portion; a first cycloidal gear provided on the first crank shaft portion; a second cycloidal gear provided on the second crank shaft portion and connected with the first cycloidal gear through the supporting crank shafts; a plurality of first ring pins provided around the outer circumference of the first cycloidal gear and in sliding contact with a plurality of teeth on the periphery of the first cycloidal gear; a first annular gear with the plurality of first ring pins; a plurality of second ring pins provided around the outer circumference of the second cycloidal gear and being in sliding contact with a plurality of teeth on the periphery of the second cycloidal gear; and a second annular gear with the plurality of second ring pins.
    Type: Application
    Filed: April 10, 2013
    Publication date: January 16, 2014
    Applicant: Industrial Technology Research Institute
    Inventors: Chun-Hung HUANG, Chang-Chia HSIEH, Jyh-Jone LEE, Cho-Chun CHIU