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5029615 |
Method for lining a pipe laid in the ground
The method for lining a pipe laid in the ground, especially a sewer conduit made from concrete, asbestos cement or stoneware, comprises making a lining tube for the pipe with an outer layer and an...
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5030493 |
High strength resin-cloth structural system
A high-strength patching material made of a cloth woven from continuous filament fiberglass warp and filling yarns and impregnated between the yarns with a resinous pliabile-plastic material which...
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5010440 |
Pipe liner having electrically conductive wires for hardening and electrostatic build-up prevention
A pipe liner for lining an underground pipe is disclosed, which mainly consists of an electrically conductive flexible tube impregnated with a thermosetting resin, and conductive wires, and is...
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5007461 |
Method for the cleaning of the interior of installed conduits
A method for the repair of the inside of installed conduits comprises the following method steps: drying of the inside of the line by flow-through of pre-dried compressed air, removal of...
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5002093 |
Repair patch for tubular fluid-containing vessel
Method and apparatus for repair of a tubular fluid-containing vessel such as a pipe or hose. A repair patch includes a sheet of heat-shrinkable material and take-up means for tightly securing the...
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4982490 |
Method of lining a fluid conduit
A method of lining a main fluid conduit 1 having a branch conduit 2 and apparatus for use in the main conduit includes a carrier 7 which is longitudinally displacable in the conduit 1. A portion 9...
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4980116 |
Lining of pipelines and passageways
In order to line a pipeline or passageway active in conveying effluent without interrupting the flow of effluent therethrough, a first bypass conduit is passed through the section to be lined...
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4976290 |
Tubular member having a liner
A tubular member having a liner adhesively affixed to an inner surface thereof. The liner comprises a porous material formed from a plurality of needle-punched unwoven fibers so as to have a pair...
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4972880 |
Pipe liner
A pipe liner for insertion into a pipe to be relined which includes an elastomeric tube encompassed by a lattice of fibre material which radially contracts upon elongation and which is impregnated...
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4941512 |
Method of repairing heat exchanger tube ends
Heat exchanger tubing has failure rates due to inlet end related problems in the 85-90% range. Such failures are normally limited to the first three to six inches of the tube inlet ends. The...
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4937933 |
Apparatus for the introduction of a sleeve into a tube of a steam generator
In an apparatus for the introduction of a repair sleeve into a tube of a steam generator, difficulties are encountered if the axes of the repair sleeve and the steam generator tube are not aligned....
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4930542 |
Method for restoring underground pipelines
Method for restoring underground pipeline (11B) wherein short-pipes (17) are pressed one after the other intermittently into the pipeline end to end. An expansion piercer (18) or similar broaching...
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4907911 |
Pipeline renovation system
A method of lining an existing pipe by pulling through it a collapsible, flexible, lay-flat liner having an innermost layer of impervious, elastomeric material which is compatible with the fluid to...
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4897135 |
Method of reconstructing pipe systems using fiberglass laminates
A method of reconstructing fixed pipe systems (which cannot be rotated) by applying a fiberglass laminate utilizing overlapping sections.
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4893389 |
Reinstatement of lateral branch connections in relined sewers or pipes
A method for reinstating branch lines to main sewers or pipes which have been relined is used in which inflatable plug seals the branch line and grout is injected via an injection pipe to fill the...
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4892219 |
Plugging device
A plugging device and system for plugging apertures in panels, and which is particularly useful in plugging irregular apertures in, for example, hulls of water-going vessels. The plugging device...
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4889449 |
Slipliner grouting method and system
The present invention is directed to the control of the movement of slip liners in grouting operations through the use of inflatable grouting bags and to the control of bulkhead sealing in slip...
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4883557 |
Method for lining pipe lines with a pressurized gas
Method and apparatus for lining pipe lines, especially those buried in the ground and having a large diameter, according to the so-called evagination-lining technique by using a compressed gas as a...
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4877665 |
Lining material for pipe lines
A lining material for pipelines such as gas conduits, city water pipelines, sewage pipelines, and petroleum pipelines which having a structure wherein a layer of bulky yarns is fastened to either...
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4867921 |
Process for installing a new pipe inside an existing pipeline
A thermoplastic pipe in a flattened and folded shape and of selected characteristics is formed by manufacturing it in this reduced shape. It is inserted in the flattened and folded shape and in a...
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4867203 |
A method of relining or preparing sewage pipe using a plastic pipe comprising an outer corrugated pipe and a smooth inner wall
A plastic pipe consisting of an outer corrugated plastic pipe and an inner smooth wall consisting of a wear resistant elastomer, particularly a thermoplastic rubber fixed in the inner bottoms wave...
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4865673 |
Method of applying a protective coating to the inner surface of a pipeline and device for carrying out the method
A method of applying a protective coating to the inner surface of a pipeline includes the steps of adhering a porous flexible hose to the pipeline inner surface, an end of the hose of which is...
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4855173 |
Repair process for a fibre reinforced structure
A repair process for a damaged fibre-reinforced structure, such as the frame of a sports racquet, comprises the steps of making a window in the structure across the damaged area and filling the...
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4847967 |
Process for the repair by lining or a steam-generator tube and a repair lining for this tube
A process for the repair by lining of a tube (12) of a steam generator, and a lining for such repair. The lining (15) is introduced into the tube (12), is rolled in the tube (12) inside the tube...
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4836715 |
Passageway lining material
The tensile strength, and particularly the ability to resist changes in cross-sectional configuration, of a rigidifiable-in-situ passageway lining material comprising a fibrous body with a settable...
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4830109 |
Casing patch method and apparatus
The present invention relates to a method and an apparatus for making a casing patch while the casing is held under tension. The method includes the steps of lowering a casing patch tool to...
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4827594 |
Process for lining a peripheral tube of a steam generator
A liner (12) substantially smaller than the thickness of the tube plate (2) is inserted into the tube (8) so that, while one of its ends is in a region of the tube (8) inside the tube plate (2) and...
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4802388 |
Tire repair plug and tool
A plug and tool are provided for repairing and sealing a puncture of a tire. The plug is generally cylindrical in shape and is made from a rubber-like material which is stiffer and more durable...
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4793382 |
Assembly for repairing a damaged pipe
An assembly for securing a repair sleeve within a damaged pipe, comprising a tubular repair sleeve, and a shape memory alloy element positioned within the sleeve and having a mandrel on each end...
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4793056 |
Plug removal apparatus
A plug removal apparatus for removing a mechanical plug fixed in an end of each heat exchange tube of a heat exchanger includes a plug removing mechanism which engages with and pulls out a...
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4780163 |
Method for lining pipeline
A method of lining pipes by providing a predetermined distance of pipeline with a first and second end; forming at least one closure point in the pipeline by cutting at least one section of the...
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4777984 |
Method for lining a pipe or main
A method for lining a pipe or main comprising heating a length of synthetic-resin liner pipe 20 of external diameter substantially equal to or greater than the internal diameter of the pipe or main...
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4778553 |
Method of lining a pipeline with a flexible tubular sleeve
The invention provides a method of applying a resin impregnated lining sleeve to a length of passageway surface wherein the sleeve first of all has a carrier tube everted into the sleeve from one...
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4776370 |
Apparatus for securing a cable to a tubular pipe liner
An apparatus for securing a generally flexible cable to one end of a generally flexible tubular pipe liner which has been impregnated with a thermosetting resin comprises a reinforcing member for...
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4773450 |
Interlining of fluid transport pipelines, pipes, and the like
Pipes or pipelines for transporting sewage, water, slurries, liquid and gaseous hydrocarbons, and the like are interlined with flexible composite tubular lining material. The lining material is...
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4762674 |
Brazing sleeve having ceramic flux band and method for applying same
A metal brazing sleeve includes a ceramic flux band formed on the sleeve adjacent an annular recess typically disposed near an open end of the sleeve for receiving a conventional braze preform, by...
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4754781 |
Plastic pipe comprising an outer corrugated pipe and a smooth inner wall
A plastic pipe consisting of an outer corrugated plastic pipe and an inner smooth wall consisting of a wear resistant elastomer, particularly a thermoplastic rubber fixed in the inner bottoms wave...
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4752511 |
Method and apparatus for sealing the space between pipes and linings therefor
When pipes are provided with comparatively rigid linings, the gaps which tend to appear between the pipe and the lining along the length thereof, and through which gaps gaseous type contents tend...
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4752431 |
Permanent conforming pipe for conducting fluids and the like and method for producing the same
A process for making a rigid pipe with the aid of flexible parallel coextensive skins interiorly filled with a catalyst-curable flexible filler, where the flexible skins and filler are laid along...
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4739916 |
Sleeve repair of degraded nuclear steam generator tubes
A sealable multimetallic sleeve for a rapid repair of a degraded tube caused by a detrimental chemical attack on the outside surface of the tube within and in a vicinity of a tube sheet in a steam...
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4724178 |
Lining material for pipe lines
A lining material utilizable for a pipe-lining method, which comprises a tubular textile jacket woven or knitted with synthetic fiber yarns provided on the exterior surface thereof with a laminated...
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4724108 |
Method for the installation of plastic pipes in sewage piping
In the procedure for the installation of plastic pipe pieces with lateral branch openings into sewage pipes to be repaired, the first step is the measuring in the longitudinal axial direction of...
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4710249 |
Tire repair method
A method and closure are provided for sealing and repairing a puncture of a tire. The closure is a resilient plug of a rubber-like material stiffer and more durable than prior closures having a...
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4681783 |
Tubular lining material for pipe lines
A tubular lining material for reinforcing pipe lines, which has a double-layered structure comprising an air-impervious outer tubular textile jacket provided on the inside thereof with a...
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4673449 |
Sealing of a pipe-joint
A method for sealing a pipe-joint comprises injecting from a point or points 5 externally of the pipe an anaerobically curable monomer into the joint gap in such quantity that the monomer forms a...
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4668125 |
Self-contained, transportable apparatus for inserting a liner into a pipe
A self-contained, transportable apparatus for inserting a flexible liner having a leading end and a trailing end into a pipe comprises an inversion means or insertion conduit, and means for...
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4664353 |
Tube assembly for use in tire retreading
A tube assembly for use in a process of vulcanizing a pre-cured tread onto a tire casing is disclosed. The tube assembly includes an elastomeric tubular wall having an inner periphery with a...
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4650110 |
Continuous movement brazing process
An improved process for brazing a sleeve within a tube is disclosed herein. In the first step of the process, a radial expansion is induced in the tube in a first longitudinal section which does...
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4646787 |
Pneumatic pipe inspection device
A pipe worm comprises radially inflatable toroids spaced along an axially inflatable tubular body. The worm inches through piping through sequential inflation and deflation of the toroids and...
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4647256 |
Method and apparatus for producing underground pipes
A method of producing underground pipes, with pipe sections being pressed ahead into the ground. For each pipe section, at least two partial pipe shells are used which are separated from one...
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