Patents by Inventor Channa Patuwatha

Channa Patuwatha 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: 7975390
    Abstract: A method and apparatus for determining the critical foot and shoe-last dimensions and variables is provided. The apparatus includes a surface for a foot to stand on, a mechanism to determine the axis passing through heel centerline, a mechanism to determine the foot or shoe last width measurement, a mechanism to determine the axis passing through center of the foot (or last) width, a mechanism to determine the mid-foot height and a mechanism to determine heel width. Based on the above mentioned mechanisms, the apparatus can determine the required dimensions and the curvature of a person's foot, called the flare angle, and as well as the curvature of a shoe-last so that footwear fitting can be improved.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: July 12, 2011
    Assignee: The Hong Kong University of Science and Technology
    Inventors: Ravindra Stephen Goonetilleke, Channa Patuwatha Witana
  • Patent number: 7854071
    Abstract: A method and kit of parts for measuring the comfortable shape of a foot for a person. The kit comprises front and rear platforms of adjustable height and a supporting surface for accommodating the plantar surface of a foot extending between said platforms. The aforementioned components can be adjusted to various settings with a view to determining a comfortable plantar foot shape. The foot shape can then be captured by scanning with an optical or mechanical probe or scanner. A method of making a customized shoe and shoe last on basis of the captured foot shape is also disclosed.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: December 21, 2010
    Assignee: The Hong Kong University of Science and Technology
    Inventors: Ravindra Stephen Goonetilleke, Channa Patuwatha Witana, Thilina Wijayantha Weerasinghe
  • Publication number: 20100229422
    Abstract: A method and kit of parts for measuring the comfortable shape of a foot for a person. The kit comprises front and rear platforms of adjustable height and a supporting surface for accommodating the plantar surface of a foot extending between said platforms. The aforementioned components can be adjusted to various settings with a view to determining a comfortable plantar foot shape. The foot shape can then be captured by scanning with an optical or mechanical probe or scanner. A method of making a customized shoe and shoe last on basis of the captured foot shape is also disclosed.
    Type: Application
    Filed: March 24, 2010
    Publication date: September 16, 2010
    Inventors: Ravindra Stephen GOONETILLEKE, Channa Patuwatha Witana, Thilina Wijayantha Weerasinghe
  • Patent number: 7685728
    Abstract: A method and apparatus for determining the comfortable footbed shape for a person. The apparatus comprises a rear platform for supporting the rear of a foot, a front platform for supporting a forefoot, the height of at least one of said front and rear platforms being adjustable relative to the height of the other one of said platforms and fixable at a selected height relative to the other platform; and a supporting surface for accommodating the plantar surface of a foot, the supporting surface comprising a length of flexible material fixable mounted to and extending between said front and rear platforms. The apparatus can adjust the aforementioned components to various settings with a view to determining the plantar foot shape and the perceived comfort in any chosen posture.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: March 30, 2010
    Assignee: The Hong Kong University of Science and Technology
    Inventors: Ravindra Stephen Goonetilleke, Channa Patuwatha Witana
  • Publication number: 20090205213
    Abstract: A method and apparatus for determining the critical foot and shoe-last dimensions and variables is provided. The apparatus includes a surface for a foot to stand on, a mechanism to determine the axis passing through heel centerline, a mechanism to determine the foot or shoe last width measurement, a mechanism to determine the axis passing through center of the foot (or last) width, a mechanism to determine the mid-foot height and a mechanism to determine heel width. Based on the above mentioned mechanisms, the apparatus can determine the required dimensions and the curvature of a person's foot, called the flare angle, and as well as the curvature of a shoe-last so that footwear fitting can be improved.
    Type: Application
    Filed: February 11, 2009
    Publication date: August 20, 2009
    Inventors: Ravindra Stephen GOONETILLEKE, Channa Patuwatha Witana
  • Publication number: 20080276476
    Abstract: A method and apparatus for determining the comfortable footbed shape for a person. The apparatus comprises a rear platform for supporting the rear of a foot, a front platform for supporting a forefoot, the height of at least one of said front and rear platforms being adjustable relative to the height of the other one of said platforms and fixable at a selected height relative to the other platform; and a supporting surface for accommodating the plantar surface of a foot, the supporting surface comprising a length of flexible material fixable mounted to and extending between said front and rear platforms. The apparatus can adjust the aforementioned components to various settings with a view to determining the plantar foot shape and the perceived comfort in any chosen posture.
    Type: Application
    Filed: March 28, 2008
    Publication date: November 13, 2008
    Inventors: Ravindra Stephen, Channa Patuwatha