Patents by Inventor David Blades

David Blades 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: 20220105700
    Abstract: A pipe liner for lining the inside of a pipe, for example a water or sewerage pipe requiring repair. The pipe liner is mainly formed of a fabric sleeve, or a plurality of fabric sleeves, and comprises a ribbon or strip of fibrous material along a longitudinal seam which reinforces the longitudinal seam. The pipe liners may be suitable for use in repairing damaged or degraded pipes and may provide an improvement in the tensile and/or flexural strength of the longitudinal seam compared to a similar pipe liner with a simple butt-stitched longitudinal seam, whilst not suffering from the disadvantages of reinforced welded seam which can be difficult to turn inside out during installation. The present invention also provides a method of manufacturing such a pipe liner, a pipe lining formed from such a pipe liner and a pipe comprising such a pipe lining.
    Type: Application
    Filed: January 30, 2020
    Publication date: April 7, 2022
    Inventors: David Blades, Alexander Johnson
  • Publication number: 20050194718
    Abstract: Provided herein are exemplary embodiments of novel and nonobvious liners, methods of lining passageways or pipelines using said liners, and uses of said liners. In one embodiment of the present invention, the liner comprises a resin absorbent material and a substantially impermeable coating.
    Type: Application
    Filed: February 17, 2005
    Publication date: September 8, 2005
    Inventors: David Blades, Robert Wiessner