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| Number | Title | Issue Date |
| 7426941 | Apparatus and method for lateral pipe identification The method for identifying lateral pipes includes printing identifying indicia on the interior surface of a liner assembly positioned adjacent the lateral pipe. The apparatus includes the liner assembly in place with the identifying indicia visible from the interior... | 09/23/2008 |
| 7402030 | Apparatus for everting a lining material An apparatus is provided for everting a tubular pipe lining material for rehabilitating an existing pipe. The apparatus has a sealed storage container storing a rotary body around which the pipe lining material is wound in a roll. An electric motor undergoes rotatio... | 07/22/2008 |
| 7398797 | Pipe lining method There is provided a pipe lining method wherein a lateral pipe lining material and a main pipe lining material are securely joined. After a lateral pipe has been lined, a start liner is applied to the main pipe and a main pipe lining material is then inserted. A heat... | 07/15/2008 |
| 7364587 | High stretch, low dilation knit prosthetic device and method for making the same A method for providing dilation resistance to an implantable tubular graft includes the steps of (a) providing a graft having opposed open ends and a textile wall extending in a lengthwise direction therebetween defining a graft diameter, wherein the textile wall ha... | 04/29/2008 |
| 7360559 | Steam cure of cured in place liner A process for lining an existing pipeline or conduit with a flexible resin impregnated cured in place liner by pulling in the liner and inflating an eversion bladder with air and curing the liner with flow-through steam without loss of pressure is provided. The blad... | 04/22/2008 |
| 7343937 | Method of locating liner within sewer pipe A method of inserting a cured in-place pipe from a cleanout includes positioning a lining along a portion of a length of a bladder, wherein the lining is frangibly connected to the bladder, inserting the bladder through the cleanout, to a position wherein the lining... | 03/18/2008 |
| 7311121 | Lateral pipe lining material and lateral pipe lining method A lateral pipe lining material comprises a tubular resin absorbing material impregnated with a setting resin, which has a flange at one end thereof and whose outer surface is coated with a highly airtight film. A sealing tube is detachably attached to the outer circ... | 12/25/2007 |
| 7311122 | Lining material for rehabilitating an existing pipe and a manhole, and barrier liner and method for rehabilitating a pipe and a manhole A pipe lining material for lining the main pipe of a sewer has a soft tubular resin absorption material impregnated with a liquid thermosetting resin, and also has a biodegradable film applied to the external peripheral surface of the pipe lining material. The pipe ... | 12/25/2007 |
| 7306011 | Apparatus and method for lateral pipe identification The method for identifying lateral pipes includes printing identifying indicia on the interior surface of a liner assembly positioned adjacent the lateral pipe. The apparatus includes the liner assembly in place with the identifying indicia visible from the interior... | 12/11/2007 |
| 7270150 | Method of lining a pipeline The present invention is an improved method for installing a liner to repair a pipeline. The method involves placing a flexible lining hose that is coated with a thermosetting resin into the pipeline. A quick setting resin is also applied to the interior walls of th... | 09/18/2007 |
| 7258141 | Pipe liner apparatus and method A thermoplastic pipe liner assembly and method for installation in a pipeline by pulling the pipe liner assembly through the pipeline in a temporarily folded condition wherein the thermoplastic pipe liner assembly has a core inner liner, an outer liner with optional... | 08/21/2007 |
| 7225875 | Multi-layered wellbore junction A multi-layered wellbore junction. In a described embodiment, a method of forming an expanded chamber in a subterranean well includes the steps of: positioning multiple chamber sidewall layers in the well; and expanding the layers in the well to form the expanded ch... | 06/05/2007 |
| 7216674 | Installation assemblies for pipeline liners, pipeline liners and methods for installing the same An installation assembly (20) for installing a liner (L) in a pipeline (P) comprises a double bladder assembly (22) including an inner bladder (26) having an installation end (26b) and a retrieval end (26c). An outer ... | 05/15/2007 |
| 7191801 | Apparatus and method for installation of pipe liner An apparatus and method for lining sewer pipes that utilize an adjustable form configured to conform to the shape and dimensions of the interior of a man-entry sized pipe line. The adjustable form can be used to position a sheet of liner material immediately adjacen... | 03/20/2007 |
| 7194337 | Agent-based operation of a robotic device A method for agent-based operation of a robotic device. In the method, at least one condition is detected in various locations of a room with a plurality of sensors. In a plurality of agents associated with respective areas of the room, the plurality of agents being... | 03/20/2007 |
| 7182104 | Collapsible duct A duct for containing a cable and method for mounting the cable therein include providing the duct with a collapsible or flexible wall movable between a contracted condition for mounting the duct in a conduit and an extended condition of increased cross-sectional ar... | 02/27/2007 |
| 7178584 | Plasma polymerization enhancement of surface of metal for use in refrigerating and air conditioning According to the present invention, there is provided a plasma polymerization surface modification of a metal for enhancing its applicability for use in refrigerating and air conditioning such as in constructing heat exchanges, by using a DC discharge plasma, compri... | 02/20/2007 |
| 7152632 | Systems and methods for pipeline rehabilitation The present disclosure is directed to methods and systems for pipeline rehabilitation. The methods and systems disclosed herein permit the rehabilitation of long lengths of previously installed pipe and minimize the need for creating multiple access points to the pi... | 12/26/2006 |
| 7152385 | In situ molded thermal barriers Methods, systems, and devices for installing barriers in openings of gaps in or between structures such as walls, ceilings, and floors are described herein. At least one barrier molding bag is positioned in the hole or gap, and a flowable firestop material that is p... | 12/26/2006 |
| 7135087 | Apparatus and method for the repair and stabilization of underground pipes The apparatus and method for eliminating ground water infiltration while stabilizing the ground and repairing underground pipe/conduit and connections is taught in this art. The steps are to first inject, under pressure, expandable structural foam in the space adjac... | 11/14/2006 |
| 7121766 | Inflatable underground structure liner An underground structure liner based upon an inflatable liner structure. An acid resistant layer is the innermost layer of an inflatable liner, and the liner is coated with epoxy resin on its outermost surface, the surface which contacts the existing walls of the un... | 10/17/2006 |
| 7114751 | Composite liner for oilfield tubular goods A composite lined tube is disclosed having end couplings. The tube includes a resin impregnated fiber preform pressed progressively along an inner wall of the tube. The tube may further include an inflatable bladder inserted into the tube. The bladder is adapted to ... | 10/03/2006 |
| 7112054 | Consolidation joining of thermoplastic laminate ducts There is provided an apparatus and method for consolidation joining a thermoplastic preform to form a duct. The apparatus includes first and second longitudinally extending support structures. The first support structure at least partially defines a cavity for suppo... | 09/26/2006 |
| 7112254 | Installation of cured in place liner with inner impermeable layer and apparatus A method for installation of a resin impregnated cured in place liner with an inner impermeable layer is provided. The liner is formed from a resin impregnable material having an impregnable layer bonded thereto. The material is formed into tubular shape with the im... | 09/26/2006 |
| 7073536 | Apparatus, methods, and liners for repairing conduits An apparatus and method for repairing the juncture or intersection of a first conduit and a second conduit is disclosed. The apparatus includes a main body for transporting and positioning a repair material impregnated with at heat curable resin system or matrix. An... | 07/11/2006 |
| 7028716 | Method for rehabilitating an existing pipe A rehabilitating pipe having a flange at one end thereof is laid inside a first existing pipe so that the flange contacts an inner circumferential surface portion of a second existing pipe surrounding a portion where the first and second existing pipes intersect. A ... | 04/18/2006 |
| 7025580 | Method and apparatus for lining a conduit Method and apparatus for installing a liner material into a host conduit such as, e.g., a sewer pipe, hydrocarbon pipeline, gas line, water line, industrial chemical pipe, or a saltwater line. The liner material may include a compression liner and/or a preliner that... | 04/11/2006 |
| 7000642 | Apparatus and method for installation of pipe liner An apparatus and method for lining sewer pipes that utilize an adjustable form configured to conform to the shape and dimensions of the interior of a man-entry sized pipe line. The adjustable form can be used to position a sheet of liner material immediately adjacen... | 02/21/2006 |
| 7000643 | Bladder system for conduit expansion Disclosed is a bladder system for use in conjunction with a conduit expansion process and system. In addition, the bladder system is in operative communication with an injection material handling system. The bladder system includes a bladder element with injection h... | 02/21/2006 |
| 6994118 | Device and method for repairing pipe using hydrophilic seals A liner tube is provided for repairing either a single pipe line or a main pipe line having a lateral pipe line connected thereto. The liner tube assembly includes a liner tube impregnated with a liquid material capable of curing and hardening. The liner tube includ... | 02/07/2006 |
| 6978804 | Systems and methods for pipeline rehabilitation The present disclosure is directed to methods and systems for pipeline rehabilitation. The methods and systems disclosed herein permit the rehabilitation of long lengths of previously installed pipe and minimize the need for creating multiple access points to the pi... | 12/27/2005 |
| 6967045 | Integrated composite structural conduit formed in place A composite, chemically integrated material structure bearing load around a close-loop structural configuration in cross-section, has a plurality of regions through the cross-sectional thickness imparting at selectively predetermined locations within the cross-secti... | 11/22/2005 |
| 6960313 | Method and apparatus for installing a flexible tubular liner A method and an apparatus for use in installing a liner in a conduit as part of a repair procedure, the apparatus including a sealing inlet port (106) for passage of the tubular liner (72) into an enclosed container (52) where an increased press... | 11/01/2005 |
| 6948883 | Sealing the junction region where a lateral pipe and a main pipe meet A lining for sealing the junction region where a lateral pipe and a main pipe meet. It has a two-portion structure including a main portion for lining a portion of the main pipe and a lateral portion of resin absorbent material for lining a portion of the lateral pi... | 09/27/2005 |
| 6935376 | Enhancement of profiled tubular lining systems by channel augmentation A tubular system made up of a tubular, a liner in the tubular, and longitudinally oriented members, which may be disposed within channels in the liner. The members advantageously may be used for pulling a liner into a host tubular, and/or maintaining the structural ... | 08/30/2005 |
| 6932116 | Fiber reinforced composite liner for lining an existing conduit and method of manufacture A reinforced liner for cured in place pipe rehabilitation of an existing pipeline having a plurality of high-strength low-elongation fiber bundles disposed circumferentially around the tubular liner at both inner and outer surfaces of a resin absorbent layer of the ... | 08/23/2005 |
| 6926792 | Method of fabricating an air-bag and an air-bag fabricated by the method In manufacturing an air-bag (1) which is formed from two super-imposed layers of fabric (2) interconnected by a plurality of seams (3), a sealant material is applied to the interior of the air-bag. The sealant material is applied by introducing ... | 08/09/2005 |
| 6923217 | Fiber reinforced composite liner for lining an existing conduit and method of manufacture A reinforced liner for cured in place pipe rehabilitation of an existing pipeline having a plurality of high-strength low-elongation fiber bundles disposed circumferentially around the tubular liner at both inner and outer surfaces of a resin absorbent layer of the ... | 08/02/2005 |
| 6899832 | Installation of flexible lining with flexible collar for lining lateral pipelines A method for installation of a flexible resin impregnable liner for lining a lateral pipe which leads into a main pipe having at one end a flexible collar for installation at the location where the lateral liner meets the main, wherein after installation the collar ... | 05/31/2005 |
| 6890401 | Liquid molded hollow cell core composite articles A hollow core composite assembly 10 is provided, including a hollow core base 12 having at least one open core surface 14, a bondable solid film 22 applied to the open core surface 14, at least one dry face ply 30 laid up dr... | 05/10/2005 |
