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4616710 |
Heat-released plug
A heat-released plug for temporarily stopping the flow of fluids from a variety of opening. The basic plug is normally installed and mostly comprised of simple and inexpensive components from...
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4602659 |
Repair in holes and cracks in clay sewer pipe
The repair of a sewer line having a fracture, and employing a liner sleeve and an elastomer sleeve extending about the line sleeve, and a filler slurry, includes: (a) installing the liner sleeve...
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4592391 |
Tube sleeve
A repair sleeve assembly (12) secured entirely within a tube (16). A hollow tension member (18) has an enlarged head (26), a lower externally threaded stem (28) and a generally cylindrical body...
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4592577 |
Sleeve type 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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4589447 |
Method of depositing a membrane within a conduit
A method of depositing a coiled member and, optionally, a membrane in a conduit in contact with the walls of the conduit involves placement of the coiled member in the conduit in a longitudinally...
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4583672 |
Explosive welding device
An explosive welding device is disclosed for securing sleeves within a tubular fluid conveying conduit. The device comprises a shatterable cup member, explosive material secured within the cup, a...
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4581801 |
Sleeving method
The sleeving method comprises inserting a metal sleeve within a tube so as to bridge the defective region of the tube. The sleeve is constructed to have annular slots on the outside thereof that...
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4582091 |
Leak sealing method
The flow of liquid escaping from a leak in a vessel, e.g., a pipeline, is reduced or eliminated by introducing particles into the liquid. The particles are dispersed in a slug of material of...
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4579161 |
Closure for repairing a tire
A closure is 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 generally...
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4576205 |
Tubular lining material for pipe lines having bends
A tubular lining material for pipe lines having bends or curved portions, which comprises a tubular textile jacket made of warps and wefts woven in a tubular form overlaid with a coating of a...
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4573248 |
Method and means for in situ repair of heat exchanger tubes in nuclear installations or the like
A method for the in situ repair of heat exchanger tubes in major heat exchanger equipment is disclosed in which supercooled sleeves are inserted into cracked heat exchanger tubes and are...
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4556240 |
Corrosion-resistant, double-wall pipe structures
In a corrosion-resistant, double-wall pipe structure formed by tightly fitting a stainless-steel inner pipe in an outer pipe, the inner pipe at any portion thereof which is liable to be adversely...
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4513903 |
Method of repairing leaks in steam generator tubes
A method of sealing leaking steam generator tubes without substantially restricting the fluid flow area by explosively welding a cylindrical sleeve over the degraded area of the tube. The sleeve...
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4509243 |
Blind side sealer apparatus and method
A method and apparatus for the internal or blind side sealing of a small local leak (such as a void in casting). The sealing is accomplished by first drilling a hole in the conduit or container...
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4508129 |
Pipe repair bypass system
A pipe repair device has a tubular housing and an expandable seal. The tubular housing includes a central passageway extending along its longitudinal axis and opening on the opposite ends of the...
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4505017 |
Method of installing a tube sleeve
A method for installing a close-fitting cylindrical metal sleeve (26) within a tube (14) secured to a tube sheet (12) of a steam generator, comprising the following steps. First, the sleeve is...
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4505613 |
Method for lining pipes in pipelines
A method for lining pipes in a town gas underground pipeline. The method is characterized in that carrier air is flown together with plastics mist passing through a route comprising a branch line...
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4501327 |
Split casing block-off for gas or water in oil drilling
A method for sealing the wall of a bore hole comprises forming a liner of resilient sheet material into a substantially cylindrical or scroll configuration having a diameter smaller than that of...
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4495907 |
Combustion chamber components for internal combustion engines
Combustion chamber defining components such as cylinder liners in internal combustion engines are composed of a plurality of metal oxides which combine to impart good wear resistance and thermally...
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4485847 |
Compression sleeve tube repair
A generally cylindrical tube repair assembly (26,80) having an outer diameter approximately equal to the tube inner diameter. The assembly includes three main components, one of which is compressed...
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4485136 |
Ambient temperature repair of elastomeric articles having a hollow therein
The repair of a reinforced elastomer article having a hollow therein relates to utilizing an amine curable polymer or prepolymer and a cured elastomer patch. The hollow in the elastomer as well as...
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4485135 |
Ambient temperature cure of elastomeric articles having a deformity therein
The repair of a reinforced elastomer article having a deformity such as a cut, cavity, or an aperture therein relates to utilizing an amine curable polymer or prepolymer and a cured elastomer...
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4448343 |
Sleeve preparation method
The method comprises applying a braze material to a sleeve in a manner so that the sleeve may be attached to a tube so as to bridge the defective region of the tube. The sleeve is constructed to...
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4446891 |
Method for repairing and/or reinforcing a pipe system, and a device for utilization of the method
A device and method for repairing and/or reinforcing a pipe system, according to which a tubular member (2) is inserted into a pipe (1) to be repaired, having sealed end portions and longitudinally...
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4440712 |
Process for the preparation of shaped articles
Shaped articles, particularly tubular shaped articles, are formed by a process comprising molding a crosslinkable synthetic plastic material into a first molded shape, crosslinking the plastic...
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4434815 |
Pipework
Apparatus is described for insertion into a branch pipe to cut an aperture in a liner provided within the main pipe for repairing the latter. The apparatus has a body together with a cutting device...
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4428989 |
Anti-fouling and anti-sliming gel coat
A polymeric composition containing copper flake in sufficient quantities to render the entire thickness of the polymeric composition electrically conductive. The copper flake is treated to remove...
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4427112 |
Service line interior by-pass kit
Interior by-pass for underground gas service line is installed from building basement without need for excavation, and has a tightenable adapter attached on each end of the by-pass tubing to...
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4427480 |
Method and apparatus for providing the inner surface of a pipe line with a tubular lining material
A method and apparatus for providing the inner surface of a pipe line with a tubular lining material through a binder under fluid pressure which comprises introducing the lining material in...
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4427031 |
Method of installing an interior by-pass liner
Interior by-pass for underground gas service line is installed from building basement without need for excavation, and has a tightenable adapter attached on each end of the by-pass tubing to...
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4427032 |
Service line interior by-pass
Interior by-pass for underground gas service line is installed from building basement without need for excavation, and has a tightenable adapter attached on each end of the by-pass tubing to...
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4421698 |
Sealing device for use in grouting pipe joints and method of using same
Method and apparatus for the economic and controlled application of grout at each of a series of joints in a pipeline. A short cylindrical tube is positioned in said pipeline opposite one joint at...
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4419163 |
Pipeline coating method
A one step method of applying a sealant onto the inside surface of a pipe, such as a gas pipe, to repair any defective portions that are likely to cause a leak and should be repaired. The sealant...
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4410391 |
Apparatus for relining an underground gas line or the like without excavation
A method and apparatus for repairing or relining an underground pipeline without having to excavate the pipe is enabled by attaching an expandable sealing unit to the end of a predetermined length...
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4408649 |
Tire repair unit
A tire repair unit is provided having a plurality of rubberized cord plies which are of a generally circular configuration and are of different area sizes. The several plies are assembled in...
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4386628 |
Maintenance lining of passageways
A sewer pipe, transport pipeline, or other circumferentially enclosed passageway is lined by inserting into and along it a flexible tubular material of given diameter, with its corresponding...
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4386629 |
Apparatus for internal pipe protection
A device for providing a protective coating for the inside of pipes, said device being remotely actuated from outside said pipes. Specifically, the device comprises a high modulus engineering...
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4379009 |
Sealing method using heat-shrinkable film
A method for sealing an object having a peripheral surface, surfaces substantially perpendicular to the peripheral surface and infinite enlongated bodies projecting from the surfaces perpendicular...
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4373554 |
Self-sealing article and process
A heat recoverable article comprising a recoverable portion and a fusible portion integrally formed so that on heating to recover the recoverable portion, the fusible portion can fuse. The article...
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4368571 |
Sleeving method
The sleeving method comprises inserting a metal sleeve within a tube so as to bridge the defective region of the tube. The sleeve is constructed to have teeth on the outside thereof that are...
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4368091 |
Method for providing the inner surface of a pipe with a flexible tubular lining material through a liquid resin under pressure
A method and apparatus for providing the inner surface of a pipe with a flexible tubular lining material through a liquid resin under pressure which comprises fixing one end of a flexible tubular...
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4350548 |
Method and apparatus for providing the inner surface of a pipe line with a lining
A method and apparatus for causing a flexible tubular lining material to be fixed to the inner surface of a pipe line wherein the tubular lining material is initially attached to the inner surface...
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4334943 |
Method for smoothly evaginating a tubular material under pressure
A method for smoothly evaginating a tubular material under pressure, if necessary, within a pipe line with simultaneous bonding the evaginated tubular material onto the inner surface of the pipe...
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RE30929 |
Collapsible tunnel liner section and method of lining a tunnel
A collapsible tunnel liner section formed from a number of arcuate segments each connected together by hinges to form a closed loop. In collapsed condition the segments are arranged in a compact...
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RE30802 |
Method of securing a sleeve within a tube
A method is disclosed for securing a repair sleeve within a tubular fluid conveying conduit. The sleeve is positioned within the tube so that it extends coextensive with a region of degraded tube...
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4262701 |
Concrete pipe lift hole plug
A plug for obturating the lift hole of poured concrete drain pipes or conduits. The plug, preferably made of a plastic molding, comprises a generally thin head in the form of a plate and a shank...
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4207630 |
Method of repairing water closet anchoring to fractured closet flange and spanner clamp therefor
The method of repairing a water closet anchoring to a fractured broken away closet flange which comprises the steps of disconnecting and disassembling the water closet from the closet flange, and...
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4207130 |
Lining of passageways
The invention permits the lining of a passageway or pipeline with a resilient but robust, semi-rigid plastics pipe. The invention enables the lining of pipelines and passageways of long length by...
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4161192 |
Transfer line exchanger inlet cone
This invention relates to an improved transfer line exchanger inlet cone for connecting the process gas outlet of a hydrocarbon cracking heater with the inlet of a transfer line heat exchanger, and...
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4140126 |
Method for performing aneurysm repair
A method and article for performing an aneurysm repair is the subject of the present invention. A prosthetic graft is utilized to replace the damaged segment of the blood vessel. The graft is...
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