Apparatus and method for lining a pipe
AssigneeLmk Enterprises, Inc.
InventorLARRY W. KIEST, JR.
Life of this patent
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Abstract
An apparatus and a method for forming a lining in a pipe is disclosed. A pumpable material capable of curing is dispensed about an interior wall of a damaged section of pipe between an inflatable bladder and the pipe. The pumpable material is compressed between the bladder and the pipe and allowed to cure. An assembly for forming the lining in the pipe includes a feeding pump, a static mixer, a dispensing unit and a bladder. The pumpable material is preferably dispensed rearward of an inverting face of the bladder and the dispensing unit and the bladder move substantially in sync along the interior of the pipe.
Claims20
A method of rehabilitating a damaged section of pipe that obviates the need for a pre-formed liner, the method comprising:
- dispensing a pumpable material capable of curing about an interior wall of the damaged section of pipe between a bladder and the pipe;
- compressing the pumpable material disposed between the bladder and the pipe;
- and
- allowing the pumpable material to cure.
A method of rehabilitating a damaged section of pipe that obviates the need for a pre-formed liner, the method comprising:
- inverting a bladder in the damaged section of pipe;
- dispensing a pumpable material capable of curing about an interior wall of the damaged section of pipe behind an inverting face of the bladder between the bladder and the pipe;
- moving the inverting face of the bladder substantially in sync with the a dispensing unit along the damaged section of pipe as the dispensing unit dispenses the pumpable material;
- compressing the pumpable material disposed between the bladder and the pipe;
- and
- allowing the pumpable material to cure.
A method of rehabilitating a damaged section of pipe that obviates the need for a pre-formed liner, the method comprising:
- inverting a bladder in the damaged section of pipe, the bladder having an exterior surface when inverted being uneven;
- dispensing a pumpable material capable of curing about an interior wall of the damaged section of pipe behind an inverting face of the bladder between the exterior surface of the bladder and the pipe;
- moving the inverting face of the bladder substantially in sync with the a dispensing unit along the damaged section of pipe as the dispensing unit dispenses the pumpable material;
- compressing the pumpable material disposed between the bladder and the pipe;
- and
- allowing the pumpable material to cure.
An assembly for lining an interior of a pipe comprising:
- a feeding pump;
- a static mixer having an inlet and an outlet, the inlet being in fluid communication with the feeding pump for mixing a resin and a catalyst to form a resin mix;
- a dispensing unit in fluid communication with the outlet of the static mixer, the dispensing unit having a nozzle adapted to dispense the resin mix evenly around the interior of the pipe;
- a bladder adapted to compress the resin mix dispensed from the dispensing unit against the interior of the pipe;
- wherein the dispensing unit operatively connected to a first reel and first motor and the bladder operatively connected to a second reel and second motor, the first and second reels are electronically controlled to control the rate at which the bladder and the dispensing unit move along the interior of the pipe.
Dependencies are inferred from the claim text.