The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 21, 1999

Filed:

Jul. 22, 1997
Applicant:
Inventors:

Stephen Cecil Grigory, San Antonio, TX (US);

Glen William Deel, Crockett, TX (US);

Jesse Abergo Villarreal, San Antonio, TX (US);

Rolf Glauser, San Antonio, TX (US);

Assignee:

Gas Research Institute, Chicago, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ; F16L / ;
U.S. Cl.
CPC ...
156 735 ; 156 94 ; 138 97 ; 138 98 ;
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.


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