Patents by Inventor Harvey Daviduk

Harvey Daviduk 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).

  • Method for manufacturing double-walled liner
    Patent number: 7354496
    Abstract: A double-walled liner and an apparatus and method for manufacturing said liner, wherein the outer liner of the double-walled liner is seamed longitudinally and transversely, and wherein the apparatus includes: a frame; a supply section for providing webs of inner and outer liner material; a folding section for folding the webs and including a V-form frame structure comprising mutually converging arms which converge towards an apex.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: April 8, 2008
    Assignee: Layfield Group Limited
    Inventors: Thomas Rose, Harvey Daviduk
  • Method and apparatus for manufacturing double-walled liner
    Publication number: 20060005894
    Abstract: A double-walled liner and an apparatus and method for manufacturing said liner, wherein the outer liner of the double-walled liner is seamed longitudinally and transversely, and wherein the apparatus includes: a frame; a supply section for providing webs of inner and outer liner material; a folding section for folding the webs and including a V-form frame structure comprising mutually converging arms which converge towards an apex.
    Type: Application
    Filed: July 7, 2004
    Publication date: January 12, 2006
    Inventors: Thomas Rose, Harvey Daviduk