Class / Patent application number | Description | Number of patent applications / Date published |
405184200 | Installing liner | 40 |
20080205991 | Underground and Partly Submerged Pipe Winding Apparatus and Method - An apparatus and method for lining an underground conduit is disclosed. The apparatus | 08-28-2008 |
20080213047 | SYSTEMS AND METHODS FOR LINER TENSIONING IN PIPELINE REHABILITATION - A system for liner tensioning according to embodiments of the present invention includes a tubular liner inside a pipeline from a front end of the pipeline to a back end of the pipeline, the tubular liner having a front end and a back end, the tubular liner coupled to the front end of the pipeline, the back end of the tubular liner extending from the back end of the pipeline, as well as a liner clamp coupled to the back end of the tubular liner, and a tensioning element coupled to the liner clamp and the pipeline, the tensioning element configured to apply a tensioning force between the liner clamp and the pipeline. The tensioning element may include one or more braces adjustable in length to accommodate pipes of varying diameters or different lengths of liner extending from the pipe. | 09-04-2008 |
20080253843 | Method and Apparatus for Everting a Pipe Lining Material and Construction Method for Rehabilitating a Pipeline Using the Eversion Apparatus - A tubular pipe lining material | 10-16-2008 |
20090041545 | 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 of the pipe line. | 02-12-2009 |
20090041546 | 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 is within the pipe and does not block the pipe. | 02-12-2009 |
20090080980 | 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 across the tubular liner, and observing an inside of the tubular liner with an infrared camera to detect an infrared signal differential between areas of the tubular liner in contact with the grout and areas of the tubular liner not in contact with the grout. Observing and inspecting the inside of the tubular liner may be accomplished simultaneously with rounding of the liner and smoothing of the grout by harnessing an infrared camera to a swab and advancing the swab with chilled compressed air to cool the liner, according to embodiments of the present invention. | 03-26-2009 |
20090129869 | Method and machine for reinforcing an embedded cylindrical pipe - A method of reinforcing an embedded cylinder pipe by applying a composite structural reinforcement within the pipe through in situ stratification of at least one band of reinforcement fibers and a resin or a resin including matrix comprising the steps of
| 05-21-2009 |
20090208291 | Lining material and pipeline lining method - A flexible tubular lining material impregnated with a thermosetting resin is folded and bound with a tape to provide a reduced width. Two steel belts are inserted into belt loops and are removably attached so as to sandwich the lining material. Another steel belt is fixedly attached to one end of the lining material. During pipeline lining work, first, the steel-belted lining material is inserted into a lateral pipe from the main pipe. The steel belts are then removed from the lining material so that the lining material may remain inside the pipeline. After the steel belts are extracted from the pipeline, the lining material is made to expand via application of pressure from the inside. While kept in contact with the inner peripheral surface of the pipeline, the lining material is heated in order to cure the thermosetting resin therein. Such an arrangement allows the lining material to be easily and smoothly inserted into a pipeline even where there is a plurality of sections bent at a right angle or close to a right angle. | 08-20-2009 |
20100008731 | PIPE PRODUCING APPARATUS AND EXISTING PIPE REHABILITATING METHOD EMPLOYING THE SAME - In an embodiment, a shaping frame ( | 01-14-2010 |
20100150659 | Apparatus for everting a lining material - An apparatus for everting and inserting a pipe-lining material to rehabilitate an underground pipeline comprises an everting nozzle that is disposed so that an opening thereof faces an opening of the pipeline. The pipe-lining material is brought un-everted up to the everting nozzle and attached to the nozzle opening thereof and fluid pressure is applied inside the pipe-lining material to evert and insert it in the pipe-extending direction of the pipeline to be rehabilitated. Eversion of the pipe-lining material is started at the location of the pipeline opening and the pipe-lining material remains flat without being everted in a curved portion where the travel direction of the pipe-lining material changes toward the pipeline opening. This allows no considerable friction to be generated at the curved portion and the pipe-lining material to be smoothly and reliably everted and inserted into the affected pipeline. | 06-17-2010 |
20110052325 | LINER FOR REPAIRING A LATERAL CONNECTION OF A PIPELINE - One invention relates to a liner ( | 03-03-2011 |
20110236138 | METHOD FOR REPAIRING AND REINFORCING UNDERGROUND PIPES - A method of repairing or reinforcing underground pipes includes the steps of providing a flexible liner assembly having a first end and a second end, applying an internal pressure to the flexible liner assembly, inserting the first end of the liner assembly into a first end of a pipe section while maintaining the internal pressure, pushing the flexible liner assembly through the pipe section while maintaining the internal pressure, releasing the internal pressure from the flexible liner assembly, and connecting the first and second ends of the flexible liner assembly to the pipe section so that the flexible liner assembly provides a substantially leak-free conduit through the pipe section. The method addresses drawbacks associated with prior art methods by preventing or reducing contact between the flexible liner assembly and sharp inner corners of the pipe section, thereby reducing drag between the flexible liner assembly and the interior of the pipe section. | 09-29-2011 |
20110280665 | SYSTEM FOR REPAIRING AND STRENGTHENING PIPE WITH INTERNAL HELICALLY WOUND TENSILE REINFORCEMENT - A method for repairing and strengthening pipes by creating a structural reinforced composite liner within the existing pipe. The liner is created by helically winding a tensile reinforcement material on the inside wall of a pipe and encapsulating it in a hardening matrix material. The reinforcement material is helically wound around the inside wall of the pipe by an installation device. The installation device is configured to relieve and/or prevent the development of torsional stress in the reinforcement material that is created by the act of helically winding it onto the inside wall of a pipe, allowing the reinforcement material to lay flat against the pipe wall without twisting or buckling. The structural reinforced composite can be configured to supplement the strength of the existing pipe or to function as a stand-alone pipe within the existing pipe. | 11-17-2011 |
20120020740 | CONNECTION STRUCTURE FOR A MANHOLE PIPE AND A SEWER MAIN PIPE - In a connection structure (A) for a manhole pipe ( | 01-26-2012 |
20120207548 | IN-PIPE EVERSION DEVICE AND METHOD OF USE - An eversion and installation device and method for in-pipe use to line an underground pipe with a resin impregnated lining tube. A pressure vessel has a slotted gasket and a flapper, along with rollers allowing a collapsed lining tube to be extended into and through the vessel and cuffed and secured to the leading end of the vessel. The vessel is then lowered through a manhole passage onto the floor or trough of the pipe before fluid pressure is applied to evert the tube into the pipe. | 08-16-2012 |
20120315095 | MORTAR-COATED STEEL PIPES AND METHODS OF MAKING THE SAME - Mortar-coated steel pipe comprise a steel cylinder having a mortar layer disposed therein, such mortar layer being free of any metallic reinforcement. An overcoat is disposed over the mortar layer and is formed from a material that is a dielectric and/or a barrier to moisture and oxygen entering the mortar layer, e.g., a polymeric material. The pipe may include a further concrete or mortar layer disposed over the overcoat, forming an outermost pipe surface. The outer layer can be cement, mortar, or other material. The mortar layer thickness is about 2 to 30 mm, the overcoat thickness is about 0.1 to 2 mm, and any outer layer thickness is about 1.2 to 4 cm. The pipe is made by compression coating method, where mortar layer and overcoat are applied simultaneously. When an outer layer is desired, it is preferably applied at the same time as the mortar layer and overcoat. | 12-13-2012 |
20130004241 | Fusion Process for Conduit - Disclosed is a method and apparatus for use in a fusion process for conduit. The method includes: heating and melting at least a portion of the terminal edges of the first conduit portion and the second conduit portion; and butt fusing the melted terminal edge of the first conduit portion with the melted terminal edge of the second conduit portion, thereby creating a fused joint area. A fusion apparatus for employing this method is also disclosed. | 01-03-2013 |
20130058725 | SYSTEM FOR EXTRACTING HEAT FROM AN EFFLUENT FLOWING IN A DUCT, AND HEAT EXCHANGER FOR SUCH A SYSTEM - Disclosed is a system for extracting heat from an effluent duct ( | 03-07-2013 |
20130156506 | Method for Renewal or Rehabilitation of Water Supply Pipelines and Plug Arrangement for use in Said Method - Method for renewal or rehabilitation of water supply pipelines without the need for excavation of the pipes or associated side inlets, manholes, etc., wherein plug arrangements are installed in side inlets, a flexible hose applied with adhesive is threaded into the water supply pipeline, and certain pressure is maintained for a predetermined period of time in order to get the adhesive material hardened and the hose glued to the inner pipe wall, and wherein the mounted plug arrangements are removed. A special plug arrangement for use in said method is also provided. | 06-20-2013 |
20130294840 | ADJUSTABLE UNDERGROUND METER INSTALLATION - A pit liner includes an upper section, a lower section, at least one pin wherein each pin is connected to one of the upper section and the lower section, and at least one notch defined in at least one of the upper section and the lower section the lower section and the upper section sized to adjust with respect to each other. | 11-07-2013 |
20130302095 | Spring Lock Culvert Pipe Liner - Devices, apparatus, systems and methods for forming rolled up spiral shaped tubular inserts of interlocking seams of elongated strip material and for inserting the inserts into damaged channels such as culverts, sewer lines, pipes, and the like. The inserts are released to expand outward and unravel until the walls of the unraveling insert abut against interior walls of the damaged channel forming a protective interior wall for the damaged channel. One side of the insert strips can have a hook, and an opposite side of the strips can have a longitudinal groove wherein the hook attaches to and slides within the groove. Slidable surfaces such as bushings, Teflon coatings and O-rings can be used along the interlocking seams to allow for reduced friction as the strip materials are rolled into contracted positions and later expanded out. | 11-14-2013 |
20130330130 | DRIVE APPARATUS FOR INSTALLING FLEXIBLE PIPE THROUGH IN-SITU PIPE - Pusher apparatus and a method of using the apparatus inserts a flexible liner into an in-situ pipe. At least a pair of contra-rotating resilient drive assemblies, having a nip therebetween, drive the liner into the pipe. A guide tube can extend between the drive assemblies and the pipe. A pull head can be affixed to a leading end of the liner and adapted for sealing within a bore of the pipe and pressured fluid can be applied to pull a leading end of the liner into the pipe while the pusher pushes. The contra-rotating resilient drive assemblies can be one or more pair of opposing wheels or opposing tracks. Track assemblies can be mounted to a frame which is movable on rails and restrained with a load cell for measuring reactive forces while pushing. The rails can be angled for aligning the nip with the pipe. | 12-12-2013 |
20130330131 | ENVELOPE ELEMENT FOR A PIPELINE, MOLD FOR MANUFACTURE THEREOF, AND METHOD FOR COVERING A PIPELINE - A plastic envelope element ( | 12-12-2013 |
20140030026 | MANHOLE LINER HAVING A WIRELESS DATA TRANSMITTER - The present invention provides an apparatus and method for repairing a manhole. The wall of the manhole is lined with a liner to form a new wall. The liner includes a resin that cures to form the new wall that is similar to the repaired wall. Embedded in the liner is a wireless data transfer mechanism that includes a transmitter, such as a radio-frequency identification (RFID). The RFID transmits identification information about the liner or the repaired wall. The transmitter may be capable of data entry in the field or may be otherwise field-programmable and further capable of transmitting at least one physical characteristic. Examples of physical characteristics may include temperature, pressure, chemical reactions, flow within the manhole, and the like. Additional transmitters may be used along the length of the manhole to determine characteristics at multiple locations, with each additional transmitter including the same or different sensors. | 01-30-2014 |
20140079488 | Method and Apparatus for Rehabilitating an Underground Water Conduit and Detecting and Drilling a Service Entrance in the Conduit - A method and apparatus for rehabilitating an underground water conduit having at least one service entrance including a plug having a light emitter which is responsive to the presence of an electromagnetic field, wherein the at least one service entrance is plugged with the plug and a semi-transparent membrane lining the internal surface of the underground water conduit thereby covering the plug. A drilling head is disposed on a body moveable within the underground water conduit, the drill head having a drill bit and a coil inductor concentric with the drill bit. The coil inductor is adapted to generate an electromagnetic field near the drilling head, wherein the light emitter of the plug is adapted to be turned on by the electromagnetic field emitted by the coil inductor to allow visual alignment of the drill bit with the light emitted by the light emitter through the semi-transparent membrane. The plug is drilled with the drill bit through the semi-transparent membrane in order to reopen the at least one service entrance. | 03-20-2014 |
20140169886 | LATERAL REINSTATEMENT CUTTER AND SINGLE ACCESS POINT METHOD OF USE - A pivot drive, a pivot, a cutter drive, a cutting head, and a camera are mounted to a base, and a remote control system operates the pivot drive to pivot the cutter drive from a stored to a use position, operates the cutter drive to rotationally drive the cutting head, and operates the camera to provide images of the cutting head used to cut out blockages at lateral connections of relined pipes. The camera and the cutting head are positioned in a spaced apart relationship facing each other, with the base extending beyond the cutting head sufficiently to provide this spacing. Optionally, the camera is mounted to a trailing portion of the base and the cutter drive is mounted to a leading portion, with control lines for the pivot and cutter drives routed back past but retained separated from the cutting head to avoid damage. | 06-19-2014 |
20140270968 | METHOD OF DISPENSING A MATERIAL - A method and system for dispensing a material through a delivery apparatus is provided. The material initially comprises or is manipulated to comprise a low viscosity. The material either can comprise a curable material or can comprise initiators, which can be activated to raise the viscosity at a later time and position. The low viscosity material is moved through the delivery apparatus for a relatively long distance using low energy. Upon nearing an end use application, the material and/or initiators can be activated by a curing agent, such as a light or heat source, such that the viscosity of the material be raised prior to the end use application thereof. Therefore, the present invention provides a method and system for moving a material normally having a higher viscosity a long distance requiring lower energy and pressure. | 09-18-2014 |
20140270969 | Device and System For Pulling A Compressed Pipe Liner Into A Host Pipe - Systems and methods for pulling a pipe liner through a host pipe comprising a pulling head with a number of fingers having flexion points which move to a closed position under towing pressure to thread a pipe liner through a host pipe. | 09-18-2014 |
20140314492 | Systems And Apparatus For Inhibiting A Compressed Pipe Liner From Retreating Into A Host Pipe - A lock block for attaching to a diameter-reduced pipe liner pulled through a host pipe which braces the pipe liner and inhibits it from fully retreating into the host pipe when longitudinal tension is reduced and the pipe liner experiences length reduction. | 10-23-2014 |
20140334883 | MANHOLE LINER HAVING A WIRELESS DATA TRANSMITTER - The present invention provides an apparatus and method for repairing a manhole. The wall of the manhole is lined with a liner to form a new wall. The liner includes a resin that cures to form the new wall that is similar to the repaired wall. Embedded in the liner is a wireless data transfer mechanism that includes a transmitter, such as a radio-frequency identification (RFID). The RFID transmits identification information about the liner or the repaired wall. The transmitter may be capable of data entry in the field or may be otherwise field-programmable and further capable of transmitting at least one physical characteristic. Examples of physical characteristics may include temperature, pressure, chemical reactions, flow within the manhole, and the like. Additional transmitters may be used along the length of the manhole to determine characteristics at multiple locations, with each additional transmitter including the same or different sensors. | 11-13-2014 |
20140341655 | MANHOLE LINER AND METHOD OF USING THE SAME - A manhole liner and a method of using the same are provided. The manhole liner is sized substantially equally to the largest diameter of the manhole, so that the liner does not have to stretch to be pressed against the manhole wall. Additionally, the liner is impregnated with a resinous material capable of curing and hardening. A bladder, preferably stretchable circumferentially and having a diameter less than the smallest diameter of the manhole, is inserted into the liner. The bladder is expanded to press the liner against the wall of the manhole to dispense resinous material from the liner, while the liner is able to fold over itself in areas having a diameter less than the original diameter of the liner. Because the bladder stretches to produce a smooth outside surface, the resinous material will migrate to areas in the folds and will cure with a smooth interior surface. | 11-20-2014 |
20140356074 | SEISMIC REINFORCED UNDERGROUND WATER CONDUIT - A method of reinforcing existing underground water conduits to resist earthquakes and landslides and a reinforcement structural device adapted for insertion into underground water conduits without having to excavate are disclosed. The reinforcement structural device consists of a seamless woven tubular sheath impregnated with a hardening resin which is adapted for insertion into a network of underground water conduits without the need to excavate. The seamless woven tubular sheath consists of continuous longitudinal fiber warp yarn providing tensile strength along the longitudinal axis of the woven tubular sheath and spiralling circumferential fiber filling yarn providing tensile strength around the wall of the woven tubular sheath. | 12-04-2014 |
20150063920 | METHODS AND APPARATUS FOR ARRESTING FAILURES IN SUBMERGED PIPELINES - A wet buckle packer includes a first disk and a second disk offset from and axially aligned with the first disk. A mandrel, elastomeric expansion boot, and brake are disposed between and axially aligned with the first and second disks. The mandrel includes a tapered outer surface and the brake includes a tapered inner surface abutting the tapered inner surface of the mandrel. The first disk is configured to move axially toward the second disk from a first position to a second position. In the second position, the first disk causes: the expansion boot to compress axially and expand radially into engagement with an inner surface of the pipeline; and the tapered inner surface of the brake to move axially along the tapered outer surface of the stationary mandrel to cause the brake to move radially outward into engagement with the inner surface of the pipeline. | 03-05-2015 |
20150063921 | METHODS AND APPARATUS FOR ARRESTING FAILURES IN SUBMERGED PIPELINES - A packer apparatus includes a first spindle in axial moveable relation with a second spindle. The first spindle includes a pressure plate and the second spindle includes a base plate. A seal plate is disposed between the pressure and base plates. A brake is disposed between the pressure and seal plates. An elastomeric expansion boot is disposed between the seal and base plates. The pressure plate is configured to be actuated by fluid pressure within the pipeline to move the first spindle axially toward the second spindle from a first position to a second position. In the second position, the first spindle causes: the brake to move radially outward into engagement with an inner surface of the pipeline; and the seal plate to move axially toward the base plate to axially compress and radially expand the expansion boot into engagement with the inner surface of the pipeline. | 03-05-2015 |
20160010779 | LARGE DIAMETER PIPE LINING AND REPAIR | 01-14-2016 |
20160010785 | HIGH-STRENGTH, WATERTIGHT PIPE LINING | 01-14-2016 |
20160091115 | REPAIRING A WET BUCKLE IN A PIPELINE - A method of repairing a length of pipeline which has experienced a wet buckle during deployment is disclosed. The method includes: severing the pipeline at locations which are spaced apart on opposite sides of a buckle and removing the buckled section to leave spaced severed ends; locating a pipeline pig in a pig deployment device; releasably coupling a pig insertion member of the pig deployment device to the pig; releasably coupling the pig deployment device to one of the severed ends; operating the pig deployment device to cause the pig insertion member to translate the pig out of the deployment device and into the pipeline through said severed end; releasing the pig insertion member from the pig and retracting the pig insertion member, leaving the pig in place within the pipeline; releasing the pig deployment device from said severed end; and welding the severed ends together. | 03-31-2016 |
20160153603 | PIPE REHABILITATION METHOD | 06-02-2016 |
20160161027 | CASED PIPELINE NETWORK - Cased pipeline network enclosed by casing with the primary purpose of the casing for leakage containment and control. A high number of pipelines are arranged inside and enclosed by an outer casing. The outer casing functions to contain and control leaks and provides a safer means of transporting gas or liquid products across sensitive areas or underwater. The casing flows leaked gas or liquid products to the pipeline network terminals for collection. The pipeline network simplifies and consolidates the permitting and approval process by allowing for the development of a high number of pipelines as a single project. Individual pipelines within the network may be separately managed to carry different gas or liquid products. | 06-09-2016 |
20220136640 | CONCRETE SANITARY SEWER PIPES AND MANHOLES FEATURING A PROTECTIVE PLASTIC LINER - A prefabricated composite concrete element for use in a corrosive sewer environment. The concrete element has a hollow reinforced cast concrete portion with at least one end having connection details, a premolded corrosion resistant inner plastic liner. The plastic liner lines an interior of the hollow concrete element and the connection details to provide abutting liner faces in an assembled joint to limit exposure through said joint of said concrete portion to corrosive materials arising in said sewer environment. At least two prefabricated composite concrete elements may be assembled end to end at a joint to form a concrete sewer system. Also disclosed are a method of prefabricating such a composite concrete element. | 05-05-2022 |