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Match Document Document Title
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...
7052567 Inflatable heating device for in-situ repair of conduit and method for repairing conduit  
The apparatus of the present invention is generally characterized by a heating/inflation module having pressurizable interior and an attached heat curable pre-preg. In particular, an elastomeric,...
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...
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...
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...
6796743 Internal line for fastening cables in a waste-water pipe  
For the purpose of fastening cables to the inner wall of a non-accessible waste-water pipe, an internal liner has been developed, which is constructed from at least two layers, the first layer,...
6652690 System for providing heated fluid utilizing exothermic chemical reaction for curing resin in pipe liner/repair process  
A “chemical heater” in the form of a cartridge containing an exothermic agent such as sodium hydroxide (caustic) soda, or the like, which, when infused into water, releases heat in the form of...
6641688 Method for sealing an annular space  
A method for providing a seal in an annular space between a rehabilitative pipe liner and a conduit wall is provided. Areas on the surface of a section of a conduit wall surrounding lateral...
6619886 System and method for installing formed-in-situ localized repair of pipes and conduits  
A method of installing a formed-in-situ repair in a pipe 40 comprising locating a sleeve of reinforcement material impregnated with a settable resin within a tube 36 of soft, impervious sheet...
6596121 Method of making composite liner for oilfield tubular goods  
A method for making a composite lined tube is disclosed, wherein the tube has end couplings on it. The method includes pressing a resin impregnated fiber preform progressively along an inner wall...
6416692 Sewer system pipe repairs  
A method of repairing leaking underground pipes, particularly gravity-flow sewer pipes, without excavation, by using a flexible liner tube containing a fluid under sufficient pressure to exclude...
6390795 Apparatus for everting a tube  
An apparatus for use in installing a liner in a conduit as part of a repair procedure, including a sealing inlet port for passage of the tubular liner into an enclosed zone where an increased...
6299803 Method for forming and sealing pipe liners  
A method for producing temporarily deformed pipe liners from a continuously extruded thermoplastic round pipe, or thermoplastic round pipe extruded in segments of 20 to 50 feet in length and...
6228312 Thermoplastic composite products and method of lining pipework  
A pipe (4) is rehabilitated by means of a tubular liner (5) which is introduced into the pipe in a contracted form, expanded into contact with the pipe wall, and hardened to retain its form. The...
6093363 Method of lining pipelines with flow-through apparatus and liner  
A flow-through device for use during the installation of an inverted resin impregnated flexible tubular liner in a passageway permitting the flow of fluids through the liner during the curing...
5958312 Process for the partial reconstruction of the refractory lining of the wall of steel casting ladles  
It was difficult until now to carry out intermediate repairs of monolithic refractory lining walls of steel casting and handling ladles when the slag area of the lining was worn before other areas....
5853629 Method of lining the internal surface of a pipe  
Methods of lining the internal surface of a pipe, include first inserting two lining pigs into the pipe and then introducing a batch of resin thereinto, or inserting one lining pig between two...
5846362 Portable non-gravitational positive pressure generator and method of use  
An apparatus for applying non-gravitational pressure to a surface includes a frame structure having a longitudinal axis, a pair of connecting members coupled to the frame structure along parallel...
5736077 Method for lining a manhole  
A method for lining a manhole: (i) inserting into the manhole a tubular liner wet with a curable liquid resin; (ii) everting an inflatable plastic bag into the tubular liner by charging water in...
5671778 Repairing tube, method for repairing pipe lines therewith and method for removing the repairing tube  
The present invention provides a repairing tube to be used in pipe lines such as gas conduits, water supply lines and sewer lines, chiefly those buried in the ground, for the purpose of repairing...
5650103 Increased efficiency method for lining a pipe with a cement mortar  
An increased efficiency method and apparatus for lining a section of pipe with a cement mortar. After a wet cement mortar has been applied to a cleaned interior surface of a pipe, carbon dioxide is...
5632307 Methods for using a high tensile strength reinforcement to repair surface defects in a pipe  
In a method for reinforcing defective portions of a pipeline, the defective portions are identified by conventional techniques, soil is excavated from around the pipeline to expose the deteriorated...
5622209 Process for the sealing and internal repair of systems of laid conduits  
A process for the sealing and internal repair of systems of laid conduits in which a sealant is introduced into the leaky conduit by means of water, the sealant being a finely divided, inert...
5601763 In situ pipeline rehabilitation system  
Underground pipelines that carry wastewater, water, natural gas, and industrial fluids deteriorate with age. This invention is a process and apparatus for installing a thermoplastic liner in a dry...
5589131 Method for manufacturing a replacement pipe for installation in an existing conduit  
A thermoplastic pipe for installation in an existing conduit is manufactured in folded form and spooled for storage. The pipe is then reheated to make it pliable for installation and pulled into...
5587126 Method of manufacturing a pipe liner for installation in an existing conduit  
A thermoplastic liner for installation in an existing conduit is manufactured in folded form and spooled for storage. The liner is then reheated to make it pliable for installation and pulled into...
5549856 Method of repairing a pipeline with an injected resin  
A resin injection method and a pipeline repair method are provided for smoothly and rapidly performing setting of an open liner and for completing works such as eversion and insertion of the open...
5510078 Method of lining pipelines and passageways  
A lining process for a pipeline or passageway employs a resin impregnated lining tube which is everted into a collapsed preliner tube in the passageway to be lined. A constraining element allows...
5503190 Method for repairing a tubular conduit  
An improved method for repairing a utility pipe such as underground sewer pipe to internally line the pipe with a tubular liner impregnated with a thermosetting resin, and in this method, a hot...
5501248 Expandable pipe liner and method of installing same  
A liner for lining the interior of subterranean pipes, such as sewers is formed from a seamless, knitted fabric sleeve having a pile construction in which piles extend away from a ground portion of...
5498389 Method and apparatus for lining a branch pipe  
A method and apparatus for lining a branch pipe is provided which can directly achieve an air-tight connection between a pressure bag and a branch pipe liner bag in a simple structure without...
5490964 Method and device for repairing a tubular conduit  
A method for repairing a tubular conduit by lining the inner wall of the tubular conduit with a tubular liner bag impregnated with thermosetting liquid resin, having the steps of: (a) everting the...
5486332 Method for everting a tubular liner bag  
A tubular liner bag is everted into a pipe to line the same, by first attaching an air hose end to the uneverted liner bag and then everting the tubular liner bag by water pressure provided into...
5451351 Method for rehabilitating a pipe with a liner having an electrically conductive layer  
A lining and method for in situ rehabilitation of a pipe. The lining includes a tubular shaped resin impregnated composite having a conductive layer surrounding an inflatable bladder. The method...
5447665 Method of removal of replacement pipe installed in an existing conduit  
A thermoplastic pipe in a reduced shape having a memory for the reduced shape is heated to make it pliable for installation in an existing conduit to be lined. The pipe is then expanded by passing...
5447664 Method of lining an inner surface of a pipe  
An amount of resin necessary for lining an inner surface of a pipe is calculated. A lining pig is inserted in the pipe from an open end thereof, and the calculated amount of resin is supplied in...
5407630 Lining of pipelines or passageways  
A method for lining a passageway which includes providing a plurality of tube sections connected end to end, pulling a first tube section through the passageway in a collapsed condition and...
5399301 Method and apparatus for expanding replacement pipe  
A method and apparatus for expanding a replacement thermoplastic pipe installed within an existing conduit is provided. A pipe expansion apparatus having a flexible substantially cylindrical...
5397513 Method for installing a length of substantially rigid thermoplastic pipe in an existing conduit  
A thin, flexible tubular membrane provides a heat containment tube for inserting into and inflation within an underground conduit to be repaired. Folded rigid thermoplastic pipe is inserted into...
5368809 Method of installing a new pipe inside an existing conduit by progressive rounding  
A thin, flexible tubular membrane provides a heat containment tube for inserting into and inflation within an underground conduit to be repaired. Folded rigid thermoplastic pipe is inserted into...
5328647 Process to seal structural joints  
A structural joint is sealed with the aid of an injection hose including a substantially liquid-impermeable base body which envelops a passage channel and which has exit openings distributed over...
5322653 Method of repairing buried sewage pipes  
A method of repairing a damaged (e.g., cracked) portion of a buried sewage pipe by permeating one or more layers of fibrous material with a hardenable plastic compound (such as epoxy resin),...
5306449 Process for lining high pressure pipeline  
A method for lining a high pressure pipeline with a tubular plastic liner. After depressurizing, purging and cleaning the pipeline is broken into discrete sections each of which is to receive a...
5256367 Pipe and sewer lining method  
This invention relates to liners containing contaminants, such as styrene, and to methods for lining pipes, such as sewer pipes with liners containing contaminants, such as styrene. In one...
5230842 Interior pipeline coating process  
To rehabilitate an internally corroded underground pipeline, excavations are made at its opposite ends to which launching and receiving pipe structures are then secured. Various pig member sets,...
5225121 Method for repairing a pipe  
A method for repairing a pipe comprising the steps of: (a) coating a resin-absorbable tubular liner, at least one side thereof which becomes the inner side eventually, with a hermetic film; ...
5223204 Method and apparatus for reversing a tubular bag  
An apparatus for reversing a tubular bag for internally lining a utility pipe installed underground, which includes a container for defining a closed space and containing a liquid body, constructed...
5160476 Method for producing a resin pipe for use as the inner lining of existing pipes  
A polyvinyl chloride resin pipe is produced for use as an inner lining for repairing or reinforcing sewerage pipes or other existing pipes. An airtight packing is disposed in the resin pipe and...
5106440 Method for repairing manholes or wetwalls  
Cavities, such as manholes of differing sizes and shapes are repaired by an apparaatus that includes an inflatable bladder enveloped by a carrier formed of a resin-impregnated fiberglass fabric. A...
5091137 Pipe lining process  
A method is provided for lining a pipe wherein a thermoplastic liner is initially formed in a cylindrical shape with a diameter slightly larger than the internal diameter of the pipe. The liner is...
Matches 1 - 50 out of 77 1 2 >