Plastic and nonmetallic article shaping or treating: processes – Repairing or restoring consumer used articles for reuse – Hollow- or container-type articles
Reexamination Certificate
2005-05-31
2005-05-31
Vargot, Mathieu D. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Repairing or restoring consumer used articles for reuse
Hollow- or container-type articles
C156S287000, C156S294000, C204S516000, C204S269000
Reexamination Certificate
active
06899832
ABSTRACT:
A method for installation of a flexible resin impregnable liner for lining a lateral pipe which leads into a main pipe having at one end a flexible collar for installation at the location where the lateral liner meets the main, wherein after installation the collar extends along the interior of the main seating against the opening of the lateral. The flexible liner is installed by inserting the liner into the lateral pipe and using fluid under pressure to expand the lining against the lateral wall to form seals with the collar at the lateral/main pipe junction.
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Insituform (Netherlands) B.V.
Reed Smith LLP
Vargot Mathieu D.
Wolfson Michael I.
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