Sump liner and method of installation
AssigneeTotal Containment, Inc.
InventorDavid Stewart
Life of this patent
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Abstract
This invention includes repair of an existing underground sump without the need for costly and time consuming excavation. A plurality of liner-forming pieces are placed inside the underground sump to create a liner preferably substantially conforming to the interior dimensions of the sump. The pieces are joined together to form a unitary containment shell by first taping and then using fiberglass cloth and fiberglass resin. A layer of gel-coat is applied to the surface of the shell to create a fluidtight containment chamber within the sump. Some of the liner-forming pieces can have openings formed therein to accommodate the pipe entries corresponding to those in the sump.
Claims15
An assembly including a sump and an interior liner, said assembly comprising:
- a) a sump having sidewalls and forming part of an underground piping system and having an opening in one said sidewall for permitting passage of a pipe;
- b) a plurality of liner-forming pieces joined together within said sump;
- c) at least one of said liner-forming pieces having an opening therein for permitting passage of a pipe;
- and
- d) whereby said plurality of liner-forming pieces form a fluidtight chamber within said sump.
A method of repairing an underground sump without excavation, comprising the steps of:
- a) placing a plurality of liner-forming pieces within an underground sump;
- and
- b) joining said liner-forming pieces together to form a fluidtight chamber within said sump.
Dependencies are inferred from the claim text.