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| Number | Title | Issue Date |
| 8151827 | Method for rehabilitating existing pipe In an existing pipe rehabilitating method according to an embodiment, a profile strip (2) for lining an existing pipe (10) is shaped using a thermoplastic resin, joint portions (21) are provided at both end portions in a width direction of the p... | 04/10/2012 |
| 8118063 | Method and apparatus for lining a pipe A new apparatus for repairing a damaged portion of a pipe includes a liner having a tubular sleeve of resin absorbent material that is capable of being stretched circumferentially and a plastic film laminated to an exterior surface of the sleeve. The plastic film co... | 02/21/2012 |
| 8061389 | Duct leakage control The invention relates to the control of leakage from ducts, such as fluid-carrying pipework, without necessarily requiring direct access to the leakage site itself; since leakage sites are often difficult to locate with the necessary degree of precision to permit ac... | 11/22/2011 |
| 7987873 | Device and method for repairing pipe The present invention relates to a new liner for repairing a damaged portion of a pipe. A lining tube formed from a non-resin absorbent material has an exterior surface adapted to receive a curable resin and contact an interior wall of the pipe. The present inventio... | 08/02/2011 |
| 7975726 | Device and method for repairing pipe 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... | 07/12/2011 |
| 7954516 | Cladding method and expansion tool A cladding method for sealing a leak in a casing, a pipeline, a borehole, or a well downhole using a liner having a tube with a first diameter, a plurality of circumferential grooves, and a plurality of seals in the grooves extending beyond the first diameter. The c... | 06/07/2011 |
| 7942167 | Expandable pipe for restoring a conduit An expandable pipe (20) for restoring a damaged conduit (22) includes a liner (24) formed of polypropylene material. The liner (24) presents exterior surface (26) defining a plurality of grooves (28) and surrounding a center... | 05/17/2011 |
| 7926516 | Internal composite repair apparatus A repair device and method for its use includes plugs that pressure isolate an internally damaged pipeline section and an hermetically sealed housing that contains a length of composite material and a means for controllably releasing the composite material. In a pre... | 04/19/2011 |
| 7905255 | Installation of sealant materials for repair of underground conduits A method and apparatus for use in repairing an underground conduit, such as a sewer pipe. A tubular bladder is filled within a selected portion of the length a conduit to occupy a large part of the interior while a sealant material in a fluid state is forced into th... | 03/15/2011 |
| 7896032 | Method and device for lining pipe The present invention is a new liner assembly for use in pipes constructed from a flexible liner formed from a resin absorbent material. A compressible material, such as stitch-bond or foam, is attached to one or more sides of the liner for forming a taper along the... | 03/01/2011 |
| 7891381 | Pipe and tube rehabilitation liners and corresponding resins A material composition and method for making flexible inversion liners having glass fibers added for strength is disclosed. The liner combines a first layer of polyester felt, an open-faced knit of fabric from ECR glass and PET strands, glass fibers, and a second la... | 02/22/2011 |
| 7878221 | Smartplug with wheel centralizer The invention regards a device for movement within a pipeline which device comprises at least one centralizing means (20) comprising at least two centralizing elements (21) arranged around the circumference of a body (8) of the device. The centr... | 02/01/2011 |
| 7870874 | 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... | 01/18/2011 |
| 7861744 | Tubular expansion device and method of fabrication The invention comprises a device for expanding tubular members to a controlled diameter and its method of fabrication. The device includes an expandable bladder held in a convoluted form. After the device is inserted into a cylindrical tube to be evenly expanded, th... | 01/04/2011 |
| 7861743 | Sacrificial conduit lining system A sacrificial lining system for a conduit is disclosed and comprises a liner portion having a proximal end and a distal end, with the proximal end defining a proximal opening and the distal end defining a distal opening. The lining system further comprises a flange ... | 01/04/2011 |
| 7849883 | Liner assembly for pipeline repair and methods of installing same A liner assembly for pipeline repair and methods of installing same. The liner assembly generally comprises an outer tubular liner, an inner malleable inflatable bladder positioned longitudinally within said liner, and a generally non-stretchable strap positioned lo... | 12/14/2010 |
| 7845372 | Bladderless pipeliner and method for using same A lining apparatus and method is provided that obviates the need for a bladder to press the liner against the host pipe. The lining apparatus may include an extension tube sealed to the liner at one of its ends with an inversion mechanism attached to the other end o... | 12/07/2010 |
| 7841366 | Systems and methods for pipeline rehabilitation installation Embodiments of methods for pipeline rehabilitation include deploying a tubular liner along an inside of a pipeline, deflating the tubular liner to form a trough, and injecting grout into the pipeline by injecting grout into the trough. Other embodiments include depl... | 11/30/2010 |
| 7766048 | Installation of cured in place liners with air and flow-through steam to cure 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 a resin impregnated inflation bladder with air and curing the liner with flow-through steam without loss of pressure is ... | 08/03/2010 |
| 7753081 | 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... | 07/13/2010 |
| 7708033 | Lining material and pipeline lining method A flexible tubular lining material impregnated with a thermosetting resin is folded and bound with binding members to provide a reduced width. Two elastic and rigid strip members are inserted into loop members attached to the lining material and are removably attach... | 05/04/2010 |
| 7708032 | 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... | 05/04/2010 |
| 7669614 | Systems and methods for installation inspection in pipeline rehabilitation A method for pipeline rehabilitation grout coverage inspection according to embodiments of the present invention includes installing a tubular liner within a pipeline by filling a space between the tubular liner and the pipeline with grout, creating a heat transfer ... | 03/02/2010 |
| 7661443 | Point repair sleeve carrier for conduits A repair sleeve carrier for transporting a repair liner into a conduit to the location of damage or leakage for repairing the conduit from the inside, the sleeve carrier having a segmented flex tubing and a bladder with ends attached to the flex tubing and an unatta... | 02/16/2010 |
| 7635006 | Method for sealing and/or reconditioning of pipes In a method for sealing and/or reconditioning of pipes through spraying a fluid coating material towards the inner wall of the pipe at least one material piece divided in the longitudinal direction thereof held together under pretension to a pipe piece with an outer... | 12/22/2009 |
| 7631665 | Device and method for pipeline rehabilitation A device and method for rehabilitating pipe connections is disclosed that simplifies the reliable transportation and positioning of a pipe lining relative to a junction region of a building service line to be lined. The device and method provides for rehabilitating ... | 12/15/2009 |
| 7628177 | Lateral interface device with flexible housing The invention comprises a lateral interface pipe repair device containing a housing with fluid sealable flexible walls dimensioned to fit within a main pipe and further comprising a first end and a second end wherein the first end and second end are held in fixed or... | 12/08/2009 |
| 7588054 | 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... | 09/15/2009 |
| 7588055 | 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 frangible connected to the bladder, inserting the bladder through the cleanout, to a position wherein the lining... | 09/15/2009 |
| 7527076 | Vertical pipe lining method and system 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... | 05/05/2009 |
| 7523764 | Method and apparatus for spot repair of pipe 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 repa... | 04/28/2009 |
| 7503349 | Lateral pipe lining material and lateral pipe lining method using same A lateral pipe lining material is comprised of a tubular resin absorbing material impregnated with a setting resin and has a flange formed on one end thereof. A peeling tube is mounted to an outer periphery of an area around the flange. A tubular peeling end, one en... | 03/17/2009 |
| 7487802 | 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... | 02/10/2009 |
| 7481246 | Lateral pipe lining material and lateral pipe lining method A lateral pipe lining material comprises a tubular resin-absorbing material impregnated with a curable resin and a brim attached at one end thereof. The lining material is positioned so that the brim faces a peripheral edge of a lateral pipe opening of the main pipe... | 01/27/2009 |
| 7478650 | Inversion liner and liner components for conduits Inversion liners are provided which in a first embodiment include first and second flexible fabric layers joined to first and second high strength fiber containing layers and joined in tubular form. The first and second flexible fabric layers face one another. The s... | 01/20/2009 |
| 7478651 | Bore-lining tubing A method of lining a bore section, the method comprises providing a first tubing section and an expandable thin-walled second tubing section. The first tubing section is run into a section of a bore. The second tubing section is then run into the bore section, withi... | 01/20/2009 |
| 7451783 | Position adjusting spacer and method for adjusting the position of a rehabilitating pipe using such A spacer is constituted by overlapping on a first wedge-shaped member, whose upper surface is inclined at a prescribed angle, a second wedge-shaped member, whose lower surface is inclined at the same angle. This spacer is inserted in the gap between a inner wall sur... | 11/18/2008 |
| 7448413 | 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... | 11/11/2008 |
| 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 |
| 7401647 | Flush mounted tubular patch Casing or other well tubulars that have failed are repaired in a manner that doesn't reduce the final inside diameter and doesn't further propagate the failure. The tubular needing repair is first expanded on at least one zone above and below the damaged area. This ... | 07/22/2008 |
