Method and device for lining a sewer pipe
AssigneeLiqui-Force Sewer Services Inc.
InventorDarcy Warren
Life of this patent
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Abstract
An assembly for introducing a pipe liner into a sewer pipe includes a launcher defining a passageway through which a resin impregnated pipe liner and bladder tube assembly passes. An inflatable member mounted to the launcher assembly is actuatable between an inflatable condition and a deflated condition. The pipe liner and bladder tube are secured in place by expanding the inflatable member outward against the inner surface of the sewer pipe. Air pressure drives the bladder tube and pipe liner into the sewer pipe and the bladder tube remains in place until the pipe liner hardens.
Claims11
An assembly for introducing a pipe liner into a sewer pipe, said assembly comprising;
- a launcher defining a passageway through which said pipe liner passes;
- an inflatable member attached to said launcher and actuatable between an inflated and deflated condition, said inflatable member including an outer diameter corresponding with an inner diameter of said sewer pipe, said inflatable member securing at least a part of said launcher and an inflatable bladder assembly within the sewer pipe in said inflated condition.
A method of installing a pipe liner within a sewer pipe comprising the steps of;
- positioning one end of the pipe liner over an inflatable member attached to a retainer and actuatable between inflated and deflated conditions;
- securing an inflatable bladder assembly over the inflatable member to the launcher;
- placing the retainer member within a sewer pipe;
- and
- inflating the inflatable member to said inflated condition to secure the pipe liner between the inflatable member and an inner surface of the sewer pipe.
Dependencies are inferred from the claim text.