Patents Assigned to CHIH-CHING HSIEH
  • Apparatus and Method for Measuring Slip Resistance of Wretch and Apparatus for Measuring Roundness of Threaded Fastener
    Publication number: 20110154916
    Abstract: An apparatus for measuring the slip resistance of a wretch includes a base, at least one first threaded fastener, and at least one second threaded fastener. Both the first threaded fastener and the second threaded fastener are threaded into the base, wherein the roundness of the first threaded fastener and the roundness of the second threaded fastener are different.
    Type: Application
    Filed: March 17, 2010
    Publication date: June 30, 2011
    Applicant: CHIH-CHING HSIEH
    Inventor: Chih-Ching HSIEH