Method and system for encapsulating in-ground asbestos concrete pipe
AssigneeDanny Warren Consulting, LLC
InventorDanny Warren
Life of this patent
Estimating the term…
Abstract
A process and system is provided to allow rehabilitation of asbestos concrete (AC) pipe to remain in place while rendering the AC pipe harmless, in a manner that protects the ecosystem and saves huge amounts of money lost to bypass, digging, remediation and disposal. The method and system provide for encapsulation of the old AC pipe in place without any digging or disruption to the surrounding area. No dewatering is required, saving the costs required with dewatering. There is minimal disruption to the community's use of the piping system while completing the repair, as such repairs can be done on a manhole-to-manhole basis. Finally, there are no hazardous material disposal requirements, or the costs associated therewith.
Claims16
A system for insitu linear segmentation and encapsulation of an inground pipeline, comprising:
- a tow control and reinforcement material supply system;
- a scribing head;
- a plurality of scribing blade elements arranged parallel to a longitudinal axis of said scribing head, each of said plurality of scribing blade elements including a plurality of individual sharpened scribing blades arranged in a linear fashion thereon;
- an application apparatus applying a water activated reinforcement material in liquid form;
- and
- a tow cable and reinforcement material supply tether connecting said tow control and reinforcement material supply system to said scribing head and said application apparatus,
- wherein each of said plurality of scribing blades increase in size along their respective scribing element to progressively create deeper scores in a wall of said inground pipeline until said wall separates into intact linear segments, said reinforcement material, upon exposure to ground water, expanding about an interior and exterior surface of the separated wall and cures to form a shell encapsulating said inground pipeline.
A method for insitu linear segmentation repair and encapsulation of an inground pipeline, comprising:
- providing a tow control and reinforcement material supply system that draws, via a tow cable, a reinforcement material supply tether and a scribing head through an interior of said inground pipeline to be repaired, wherein said scribing head includes scribing elements including a plurality of individual sharpened scribing blades arranged in a linear fashion thereon, the scribing blades increasing in size along their respective scribing element to progressively create deeper scores in a wall of said inground pipeline until said wall opens and separates into intact linear segments;
- applying a water activated expanding reinforcement material, in liquid form, via an application apparatus, also connected to said tow cable and reinforcement material supply tether, to the opened and separated wall of said inground pipeline, wherein said expanding reinforcement material, upon exposure to ground water, expanding about an interior and exterior surface of the separated wall and cures to form a shell that encapsulates the opened and separated wall of said inground pipeline.
Dependencies are inferred from the claim text.