Patents by Inventor Ying Yuk Ng

Ying Yuk Ng 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).

  • Patent number: 11272757
    Abstract: Disclosed herein is a process for making a shoe using a stand-alone mouldable nonwoven fabric which has the ability of self-sustaining and shape maintenance and which is heated to become softened till molten. In the process of the invention, the shoe parts are moulded by a compression moulding process and the moulded parts are then heated and welded together by a plastic welding method.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: March 15, 2022
    Inventor: Ying Yuk Ng
  • Patent number: 10246805
    Abstract: The invention provides a connector assembly for fastening filter elements onto a supporting plate of a press filter, comprising a first cylindrical core, a first flange extending outward from the first cylindrical core, a second cylindrical core, and a second flange extending outward from the second cylindrical core. The first cylindrical core is shaped and dimensioned such that it snugly passes through and is meshed with a central through hole of the supporting plate, and the second cylindrical core is shaped and dimensioned such that it snugly passes through and is meshed with the first cylindrical core. Both the first cylindrical core and the first flange and both the second cylindrical core and the second flange are respectively molded integrally from a non-woven fabric which has the ability of self-sustaining and shape maintenance, and is moldable. The invention also relates to a press filter fitted with the connector assembly.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: April 2, 2019
    Assignee: FAIRTECH INVESTMENT LIMITED
    Inventors: Ying Yuk Ng, Gilbert Craig
  • Publication number: 20180352899
    Abstract: Disclosed herein is a process for making a shoe using a stand-alone mouldable nonwoven fabric which has the ability of self-sustaining and shape maintenance and which is heated to become softened till molten. In the process of the invention, the shoe parts are moulded by a compression moulding process and the moulded parts are then heated and welded together by a plastic welding method.
    Type: Application
    Filed: June 7, 2018
    Publication date: December 13, 2018
    Inventor: Ying Yuk NG
  • Patent number: 9731237
    Abstract: The present invention provides a novel nonwoven felt fabric, which is made of at least one low-melting-point short fiber and at least one high-melting-point short fiber of same type or different types, wherein the fabric is stiff enough to be self-sustaining and have the ability of shape maintenance. The felt fabric exhibits excellent pleatability, moldability and compressive strength. The invention also provides a method for producing the felt fabric, and a filter comprising the felt fabric used as the material of a filter medium of the filter, wherein the filter medium requires no support structure to stand alone and persistently retains its shape.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: August 15, 2017
    Assignee: FAIRTECH INVESTMENT LIMITED
    Inventors: Ying Yuk Ng, Gilbert Craig
  • Publication number: 20150218740
    Abstract: The present invention provides a novel needle-punched nonwoven felt fabric which is made of same or substantially similar melting point short fibers of same type or different types, preferably made of one melting point short fibers of same type, wherein the felt fabric is stiff enough to be self-sustaining and has the ability of shape maintenance. The felt fabric exhibits excellent pleatability, moldability and compressive strength. The invention also provides a method for manufacturing the felt fabric, and a filter comprising the felt fabric used as the material of a filter element of the filter, wherein the filter element requires no support structure to stand alone and persistently retains its shape. The present invention further provides use of the felt fabric as a sound absorbing material.
    Type: Application
    Filed: December 21, 2011
    Publication date: August 6, 2015
    Applicant: FAIRTECH INVESTMENT LIMITED
    Inventor: Ying Yuk Ng
  • Publication number: 20140326651
    Abstract: The invention provides a connector assembly for fastening filter elements onto a supporting plate of a press filter, comprising a first cylindrical core, a first flange extending outward from the first cylindrical core, a second cylindrical core, and a second flange extending outward from the second cylindrical core. The first cylindrical core is shaped and dimensioned such that it snugly passes through and is meshed with a central through hole of the supporting plate, and the second cylindrical core is shaped and dimensioned such that it snugly passes through and is meshed with the first cylindrical core. Both the first cylindrical core and the first flange and both the second cylindrical core and the second flange are respectively moulded integrally from a non-woven fabric which has the ability of self-sustaining and shape maintenance, and is mouldable. The invention also relates to press filter fitted with the connector assembly.
    Type: Application
    Filed: February 23, 2012
    Publication date: November 6, 2014
    Applicant: FAIRTECH INVESTMENT LIMITED
    Inventors: Ying Yuk Ng, Gilbert Graig
  • Publication number: 20130193063
    Abstract: The present invention provides a novel nonwoven felt fabric, which is made of at least one low-melting-point short fiber and at least one high-melting-point short fiber of same type or different types, wherein the fabric is stiff enough to be self-sustaining and have the ability of shape maintenance. The felt fabric exhibits excellent pleatability, moldability and compressive strength. The invention also provides a method for producing the felt fabric, and a filter comprising the felt fabric used as the material of a filter medium of the filter, wherein the filter medium requires no support structure to stand alone and persistently retains its shape.
    Type: Application
    Filed: February 28, 2011
    Publication date: August 1, 2013
    Inventors: Ying Yuk Ng, Gilbert Craig