Patents by Inventor Stephen Cecil Grigory

Stephen Cecil Grigory 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: 6004412
    Abstract: A sealing system for repairing an aperture or notch of a damaged plastic pipe. The sealing system comprises a patch member and an attachment tool. The patch member includes a top side, a bottom side, and comprises, in part, a thermoplastic material. The attachment tool includes a housing, a power source associated with the housing, a base member, attachment members for attaching the base member to the patch member, and members which facilitate positioning to the power source relative to the housing. The invention further includes a method of repairing an aperture or notch of a damaged plastic pipe.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: December 21, 1999
    Assignee: Gas Research Institute
    Inventors: Stephen Cecil Grigory, Glen William Deel, Jesse Abergo Villarreal, Rolf Glauser
  • Patent number: 5954095
    Abstract: A pipe sealing system comprising an insertion tool and a seal apparatus for providing sealing to a damaged pipe. The sealing apparatus includes a cover member and a tool attachment member. The insertion tool includes a handle having an outer tube and an inner shaft slidably positioned within the outer tube. Additionally, the insertion tool includes an attachment region associated with the inner shaft for releasably attaching the tool attachment member to the insertion tool. The attachment region enables releasable controlled positioning of the cover member within the outer tube of the handle. The invention further includes a method for repairing damaged pipes.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: September 21, 1999
    Assignee: Gas Reasearch Institute
    Inventors: Stephen Cecil Grigory, Jesse Abergo Villarreal, Jeffrey Gene Wright, Donald Wade Johnson
  • Patent number: 5920976
    Abstract: A remote pipe sealing system comprising an insertion tool and a seal apparatus for providing sealing to a damaged pipe. The sealing apparatus includes a cover member and a tool attachment member. The insertion tool includes a guide member and a handle having an outer tube and an inner shaft slidably positioned within the outer tube. The guide member is slidably associated with the outer tube. Additionally, the insertion tool includes a member for releasably attaching the tool attachment member to the inner shaft of the handle. The releasable attachment member enables releasable controlled positioning of the cover member within the outer tube of the handle. The invention further includes a method for remotely repairing damaged pipes.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: July 13, 1999
    Assignee: Gas Research Institute
    Inventors: Stephen Cecil Grigory, Jesse Abergo Villarreal, Jeffrey Gene Wright, Donald Wade Johnson