Sanexen Environmental Services Inc.

Niedner Inc.

Sylvain Morissette

Gilles Gagnon

Martin Bureau

Dave Lord

Joël Héraud

Sylvain Boissonneault

Pascal Michaud

A seamless tubular liner for repairing an underground or surface pipe is disclosed, including circumferential wefts consisting of slivers comprising a plurality of staple fibers bundled together, the slivers adapted to elongate through disentanglement of the bundled staple fibers when the seamless tubular liner is subjected to an inflation pressure such that the diameter of the tubular liner is able to expand to accommodate variations of diameter of the pipe being repaired.

Tubular liner for rehabilitating underground and surface pipes and pipelines

A method of rehabilitating a network of underground water conduits having at least one lateral opening and a membrane for that purpose is disclosed. The method comprising the steps of blocking and sealing the at least one lateral opening with a membrane impregnated with a hardening resin positioned over the at least one lateral opening, and allowing the resin to harden thereby forming a rigid membrane over the at least one lateral opening.

Method and apparatus for rehabilitation of water conduit with lateral openings

Growing community of inventors

Sherbrooke, Canada

Sylvain Morissette