Patents by Inventor Wai Ching Andy Lau

Wai Ching Andy Lau 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: 8888555
    Abstract: A method of manufacturing a breast cup of a brassiere may include the steps of providing a pad including a first edge portion and a second edge portion, providing a fabric cover including a third edge portion and a fourth edge portion, superimposing the first and third edge portions, connecting the superimposed first and third edge portions together, superimposing the second and fourth edge portions, connecting the superimposed second and fourth edge portions together, ultrasonically cutting and fusing the connected first and third edge portions to form a first line of fusion joining the pad and the fabric cover, ultrasonically cutting and fusing the connected second and fourth edge portions to form a second line of fusion joining the pad and the fabric cover, and turning the joined pad and fabric cover inside out along the first and second lines of fusion to form seamless edges.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: November 18, 2014
    Assignee: Clover Group International Limited
    Inventor: Wai Ching Andy Lau
  • Patent number: 8257141
    Abstract: A method of forming a hem of an elastic material includes laying a first stretch fabric sheet upon a second stretch fabric sheet, cutting an excess edge strip from the first stretch fabric sheet and the second stretch fabric sheet along a fuse line and simultaneously fusing the sheets together along the fuse line, positioning an elastic strip between the first and second sheets along the fuse line, and fusing the elastic strip to one of the sheets to form a hem.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: September 4, 2012
    Assignee: Clover Group International Limited
    Inventor: Wai Ching Andy Lau
  • Patent number: 8226453
    Abstract: A shoulder strap includes a first stretch fabric and a second stretch fabric, and a first rigid fabric sandwiched between the first stretch fabric and a second stretch fabric and adhered to the first stretch fabric. The rigid fabric is located at an intermediate position between opposite ends of the first stretch fabric and the second stretch fabric.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: July 24, 2012
    Assignee: Clover Group International Limited
    Inventor: Wai Ching Andy Lau
  • Patent number: 8114498
    Abstract: A method of making a bonded hem includes sandwiching a body member between a first adhesive film and a second adhesive film, placing a fabric sheet upon the first adhesive film and fusing the first adhesive film to bond onto the body member and the fabric sheet, flipping the fabric sheet to form a first fold line and a second fold line, and fusing the second adhesive film to bond onto the fabric sheet to form the bonded hem.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: February 14, 2012
    Assignee: Clover Group International Limited
    Inventor: Wai Ching Andy Lau
  • Publication number: 20110281499
    Abstract: A method of forming a hem of an elastic material includes laying a first stretch fabric sheet upon a second stretch fabric sheet, cutting an excess edge strip from the first stretch fabric sheet and the second stretch fabric sheet along a fuse line and simultaneously fusing the sheets together along the fuse line, positioning an elastic strip between the first and second sheets along the fuse line, and fusing the elastic strip to one of the sheets to form a hem.
    Type: Application
    Filed: June 14, 2011
    Publication date: November 17, 2011
    Inventor: Wai Ching Andy LAU
  • Publication number: 20110171881
    Abstract: A method of manufacturing a breast cup of a brassiere may include the steps of providing a pad including a first edge portion and a second edge portion, providing a fabric cover including a third edge portion and a fourth edge portion, superimposing the first and third edge portions, connecting the superimposed first and third edge portions together, superimposing the second and fourth edge portions, connecting the superimposed second and fourth edge portions together, ultrasonically cutting and fusing the connected first and third edge portions to form a first line of fusion joining the pad and the fabric cover, ultrasonically cutting and fusing the connected second and fourth edge portions to form a second line of fusion joining the pad and the fabric cover, and turning the joined pad and fabric cover inside out along the first and second lines of fusion to form seamless edges.
    Type: Application
    Filed: March 16, 2011
    Publication date: July 14, 2011
    Inventor: Wai Ching Andy LAU
  • Patent number: 7972455
    Abstract: A method of forming a hem of an elastic material includes laying a first stretch fabric sheet upon a second stretch fabric sheet, cutting an excess edge strip from the first stretch fabric sheet and the second stretch fabric sheet along a fuse line and simultaneously fusing the sheets together along the fuse line, positioning an elastic strip between the first and second sheets along the fuse line, and fusing the elastic strip to one of the sheets to form a hem.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: July 5, 2011
    Assignee: Clover Group International Limited
    Inventor: Wai Ching Andy Lau
  • Patent number: 7927441
    Abstract: A method of manufacturing a breast cup of a brassiere may include the steps of providing a pad including a first edge portion and a second edge portion, providing a fabric cover including a third edge portion and a fourth edge portion, superimposing the first and third edge portions, connecting the superimposed first and third edge portions together, superimposing the second and fourth edge portions, connecting the superimposed second and fourth edge portions together, ultrasonically cutting and fusing the connected first and third edge portions to form a first line of fusion joining the pad and the fabric cover, ultrasonically cutting and fusing the connected second and fourth edge portions to form a second line of fusion joining the pad and the fabric cover, and turning the joined pad and fabric cover inside out along the first and second lines of fusion to form seamless edges.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: April 19, 2011
    Assignee: Clover Group International Limited
    Inventor: Wai Ching Andy Lau
  • Publication number: 20100143688
    Abstract: A method of making a bonded hem includes sandwiching a body member between a first adhesive film and a second adhesive film, placing a fabric sheet upon the first adhesive film and fusing the first adhesive film to bond onto the body member and the fabric sheet, flipping the fabric sheet to form a first fold line and a second fold line, and fusing the second adhesive film to bond onto the fabric sheet to form the bonded hem.
    Type: Application
    Filed: February 12, 2010
    Publication date: June 10, 2010
    Inventor: Wai Ching Andy Lau
  • Patent number: 7678220
    Abstract: A method of making a bonded hem includes sandwiching a body member between a first adhesive film and a second adhesive film, placing a fabric sheet upon the first adhesive film and fusing the first adhesive film to bond onto the body member and the fabric sheet, flipping the fabric sheet to form a first fold line and a second fold line, and fusing the second adhesive film to bond onto the fabric sheet to form the bonded hem.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: March 16, 2010
    Assignee: Clover Group International Limited
    Inventor: Wai Ching Andy Lau
  • Patent number: 7640879
    Abstract: A fabric-processing device includes a body, a presser foot attached to the body, and a heater attached to the presser foot. The heater is in a heat-exchange relationship with the presser foot.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: January 5, 2010
    Assignee: Clover Group International Limited
    Inventor: Wai Ching Andy Lau
  • Publication number: 20080081166
    Abstract: A method of forming a hem of an elastic material includes laying a first stretch fabric sheet upon a second stretch fabric sheet, cutting an excess edge strip from the first stretch fabric sheet and the second stretch fabric sheet along a fuse line and simultaneously fusing the sheets together along the fuse line, positioning an elastic strip between the first and second sheets along the fuse line, and fusing the elastic strip to one of the sheets to form a hem.
    Type: Application
    Filed: September 25, 2007
    Publication date: April 3, 2008
    Inventor: Wai Ching Andy Lau
  • Publication number: 20080078314
    Abstract: A fabric-processing device includes a body, a presser foot attached to the body, and a heater attached to the presser foot. The heater is in a heat-exchange relationship with the presser foot.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 3, 2008
    Inventor: Wai Ching Andy Lau
  • Publication number: 20080081168
    Abstract: A method of making a bonded hem includes sandwiching a body member between a first adhesive film and a second adhesive film, placing a fabric sheet upon the first adhesive film and fusing the first adhesive film to bond onto the body member and the fabric sheet, flipping the fabric sheet to form a first fold line and a second fold line, and fusing the second adhesive film to bond onto the fabric sheet to form the bonded hem.
    Type: Application
    Filed: September 13, 2007
    Publication date: April 3, 2008
    Inventor: Wai Ching Andy Lau
  • Publication number: 20080060745
    Abstract: A shoulder strap includes a first stretch fabric and a second stretch fabric, and a first rigid fabric sandwiched between the first stretch fabric and a second stretch fabric and adhered to the first stretch fabric. The rigid fabric is located at an intermediate position between opposite ends of the first stretch fabric and the second stretch fabric.
    Type: Application
    Filed: August 15, 2007
    Publication date: March 13, 2008
    Inventor: Wai Ching Andy Lau