Abstract: The invention discloses a vertical pipe lining method comprising placing a repair material having a first end and a second end into a pipe having a bottom opening and a top opening. The repair material is inflated to press the repair material against the inside wall surface of the pipe; and heated air is conveyed through the inflated repair material from the bottom opening to the top opening to cure or mold a thermal responsive component of the repair material to the pipe. The invention also teaches a repair material for vertically oriented pipes comprising a multi-layered lining comprising a first outer layer and a second inner layer wherein the first outer layer comprises a resin impregnated fiber and the second inner layer is air impermeable. The invention also teaches a system for repairing. vertical pipe utilizing a repair material inflation device, an air blower and an air heater.
Abstract: The invention comprises a fluid inflatable bladder with at least one electrical heating component comprised of carbon fibers. Also subject of the invention is an interior surface pipe repair material placement, transport and installation device for in situ pipe repair comprising an cylindrically shaped electrically resistive heatable bladder having an inflatable annulus with fixed diameter cone ends wherein the cone ends and the deflated bladder are dimensioned to fit within an interior of a pipe. The tapered cone ends facilitates maneuvering of the bladder within the pipe, and a middle segment of the bladder may be inflated to expand in a radial direction to press a repair material to the interior pipe surface. The invention includes fluid conveying components connectable to the inflatable annulus; and electrical power connector components connectable to resistive heating elements of the bladder.
Type:
Grant
Filed:
December 20, 2005
Date of Patent:
April 28, 2009
Assignee:
Energy Maintenance Services Group I, LLC
Abstract: A tube shaped and fluid inflatable and electrically heatable in-situ pipe repair device comprising a first outer elastomeric tube layer and a resistive heating component comprised of electrically conductive fibers braided over an elastomeric core. The tube shaped device also contains an inner annulus. The device is fluid sealable and is connectible to a fluid supply and vacuum source. It is also connectible to an electrical power source. The device may also comprise two tube shaped layers configured to fit snuggly together with a resistive heating component held between the two layers. The resistive heating component may be a braided fiber-elastomeric core combination or a conductive fiber configured in a sinusoidal wave or similar pattern.