Patents by Inventor Chun Wah Samuel YEUNG

Chun Wah Samuel YEUNG 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).

  • Publication number: 20210032786
    Abstract: The present invention discloses a free-cut warp-knitted elastic fabric with a hidden cross stripe and a method for knitting thereof. The method includes: making a non-elastic yarn pass across a guide needle of the first guide bar and form the surface of the fabric by knitting via three needles in an open warp sateen loop mode, and making an elastic yarn pass across a guide needle of the second guide bar and form the inside of the fabric by knitting with the aforementioned non-elastic yarn in the same direction via three needles in an open warp sateen loop mode. The warp-knitted fabric provided by the present invention can be arbitrarily cut, does not ravel easily, is free of hemming-stitch, and has a hidden cross stripe effect.
    Type: Application
    Filed: November 21, 2019
    Publication date: February 4, 2021
    Inventors: Changsheng Peng, Xiangjiao Xie, Chun Wah Samuel Yeung, Mingcai Fan, Lihong Qiu, Xia Tang, Shuying Zhang, Xiaozhan Kang, Kaihong Zhou, Shilin Zhuang, Yanfang Lai
  • Publication number: 20200291556
    Abstract: The present invention provides a free-cut warp-knitted elastic fabric and a method for production thereof. The method uses a first guide bar and a second guide bar of a tricot warp knitting machine for knitting, wherein a non-elastic yarn passes across a guide needle of the first guide bar and forms the surface of the fabric by knitting via two needles in a 1×1 warp plain stitch loop mode, and an elastic yarn passes across a guide needle of the second guide bar and forms the inside of the fabric by knitting with the aforementioned non-elastic yarn in the same direction via two needles in a 1×1 double warp plain stitch loop mode. Finally the fabric which has good resilience, can be arbitrarily cut, and has low raveling property, good elasticity and high snagging level is obtained.
    Type: Application
    Filed: September 12, 2019
    Publication date: September 17, 2020
    Inventors: Changsheng Peng, Chun Wah Samuel Yeung, Baohong Hu, Xiangjiao Xie, Lihong Qiu, Gui Zhang, Xue Xiao, Yanfang Lai, Shuying Zhang, Hualan Xu, Junbiao Wan
  • Publication number: 20150361603
    Abstract: A warp knitted fabric includes a set of non-elastomeric yarn of substantially the same type, fully threaded from a guide bar at the front side of the Tricot type warp knitting machine and knitted in a close 2×1 stitch pattern, and a set of elastomeric yarn of substantially the same type, fully threaded from a guide bar at the rear side of the Tricot type warp knitting machine and knitted in an open 1×1 pillar stitch pattern. The gripping and gummy characteristics on the technical face of the fabric composed of the non-elastomeric and elastomeric yarns are firmly accomplished and quantifiably exposed. A method of manufacturing the warp knitted fabric of this type is also disclosed.
    Type: Application
    Filed: August 26, 2015
    Publication date: December 17, 2015
    Inventor: Chun Wah Samuel Yeung
  • Publication number: 20150128653
    Abstract: A warp knitted fabric includes a set of non-elastomeric yarn of substantially the same type, fully threaded from a guide bar at the front side of the Tricot type warp knitting machine and knitted in a close 2×1 stitch pattern, and a set of elastomeric yarn of substantially the same type, fully threaded from a guide bar at the rear side of the Tricot type warp knitting machine and knitted in an open 1×1 pillar stitch pattern. The gripping and gummy characteristics on the technical face of the fabric composed of the non-elastomeric and elastomeric yarns are firmly accomplished and quantifiably exposed. A method of manufacturing the warp knitted fabric of this type is also disclosed.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Applicant: Pacific Textiles Limited
    Inventor: Chun Wah Samuel YEUNG
  • Publication number: 20120297840
    Abstract: A warp knitted fabric includes a non-elastic filament yarns threaded from a first guide bar and knitted in a 1×2 open Koper stitch pattern, and an elastic yarns threaded from a second guide bar and knitted in a 1×1 closed pillar stitch pattern. The elasticity of the knitted fabric composed of the elastic and non-elastic filament yarns are substantially the same in both longitudinal and transverse directions. A method of manufacturing the warp knitted fabric is also disclosed.
    Type: Application
    Filed: May 24, 2011
    Publication date: November 29, 2012
    Inventor: Chun Wah Samuel YEUNG