Patents by Inventor Cynthia D. Heagy

Cynthia D. Heagy 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 and apparatus for lining a conduit
    Patent number: 7025580
    Abstract: Method and apparatus for installing a liner material into a host conduit such as, e.g., a sewer pipe, hydrocarbon pipeline, gas line, water line, industrial chemical pipe, or a saltwater line. The liner material may include a compression liner and/or a preliner that is attached to the inner wall of the host conduit to repair or reinforce the host conduit or separate the host conduit from materials transported within the new liner formed from the liner material. Curable resin, slurry, or cement can be placed between the liner material and the host conduit to affix the liner material into place. Before and during curing, a fluid such as air or water can be used to inflate the compression liner outwardly toward the host conduit.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: April 11, 2006
    Inventors: Richard T. Heagy, Cynthia D. Heagy, Tom R. Menger, John Simonis
  • Method and apparatus for lining a conduit
    Publication number: 20020033554
    Abstract: Method and apparatus for installing a liner material into a host conduit such as, e.g., a sewer pipe, hydrocarbon pipeline, gas line, water line, industrial chemical pipe, or a saltwater line. The liner material may include a compression liner and/or a preliner that is attached to the inner wall of the host conduit to repair or reinforce the host conduit or separate the host conduit from materials transported within the new liner formed from the liner material. Curable resin, slurry, or cement can be placed between the liner material and the host conduit to affix the liner material into place. Before and during curing, a fluid such as air or water can be used to inflate the compression liner outwardly toward the host conduit.
    Type: Application
    Filed: June 8, 2001
    Publication date: March 21, 2002
    Inventors: Richard T. Heagy, Cynthia D. Heagy, Tom R. Menger, John Simonis