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:
May. 31, 2005

Filed:

Mar. 01, 2000
Applicants:

Pierre-yves Corre, Montfort sur Meu, FR;

James Leighton, L'Hermitage, FR;

Jean-louis Saltel, Le Rheu, FR;

Inventors:

Pierre-Yves Corre, Montfort sur Meu, FR;

James Leighton, L'Hermitage, FR;

Jean-Louis Saltel, Le Rheu, FR;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C063/34 ; B29C070/30 ; B29C073/10 ; B29C073/12 ; F16L001/038 ;
U.S. Cl.
CPC ...
Abstract

A process and plant for laying a pipe in a trench comprising placing a flattened tubular preform in the trench, the perform having a reinforcement surrounding an inner seal, the reinforcement being impregnated with a resin, and inflating the perform in the trench.


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