Patents by Inventor William J. Courtney

William J. Courtney 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 of manufacturing a tubing for a subsurface water drainage system
    Patent number: 8518201
    Abstract: A tubing with improved compression strength for a subsurface water drainage system comprising a core polymeric support structure wrapped longitudinally in first and second geotextile materials, wherein the core polymeric support structure is heated to soften the polymeric material and wherein the first and second geotextile materials overlap and are adhered together with a hot melt adhesive and tensioned to tightly wrap the core, thereby forming the tubing.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: August 27, 2013
    Assignee: Midwest Diversified Technologies, Inc.
    Inventors: William J. Courtney, Andrew Chapman
  • Method of manufacturing a tubing for a subsurface water drainage system
    Publication number: 20100272513
    Abstract: A tubing with improved compression strength for a subsurface water drainage system comprising a core polymeric support structure wrapped longitudinally in first and second geotextile materials, wherein the core polymeric support structure is heated to soften the polymeric material and wherein the first and second geotextile materials overlap and are adhered together with a hot melt adhesive and tensioned to tightly wrap the core, thereby forming the tubing.
    Type: Application
    Filed: April 20, 2010
    Publication date: October 28, 2010
    Inventors: William J. Courtney, Andrew Chapman