Patent classifications
F16L55/165
Methods and systems for treating emissions released during closed molding processes
Methods and systems for treating emissions during a cured-in-place pipe (CIPP) closed molding process in which a resin-impregnated fibrous material is placed within an existing fluid conduit and cured in situ to seal an opening in the conduit. Such a method includes capturing multi-phase emissions released by a resin-impregnated fibrous material during curing thereof in a CIPP process, accumulating the multi-phase emissions, condensing at least a water portion of the multi-phase emissions, and treating vapor constituents of the multi-phase emissions.
PIPE EXTRACTION ASSISTED BY PRE-STRESSED STRAND
A machine for extracting a ductile pipe. The machine has a vise which can grip the pipe, and a wire clamp. Each of the wire clamp and vise are supported on a carriage which is movable relative to a frame. This enables the vise to grip and pull the ductile pipe. Additionally, a wire strand may be disposed through the pipe from a far end to the end at which the machine is placed. The wire clamp allows the machine to pre-stress the strand to improve the extraction of the ductile pipe.
INVERSION LINER ASSIST ADAPTER
A cured-in-place pipe rehabilitation device launcher having a launcher assembly and a liner assist chamber, the launcher assembly includes a nozzle, an air feed chamber above the nozzle to pressurize a cured-in-place liner to aid in urging it into a pipe to be rehabilitated, and an attachment plate is disposed above the adapter. The liner assist chamber includes a base plate to attach to the attachment plate, a liner assist frame coupled to the base plate, a plurality of rollers rotationally attached to the liner assist frame, and a motor operably attached to at least one of the plurality of rollers and configured to aid in urging the cured-in-place liner into the pipe.
Pipe-forming apparatus for spiral pipe and pipe-forming method thereof
A spiral pipe-forming apparatus includes a non-circular guide portion which is rotatable with respect to an apparatus frame around a rotary axis. The non-circular guide portion is configured to be applied to a peripheral surface of a preceding spiral pipe portion. An acting portion is configured to act such that the non-circular guide portion follows a peripheral surface of an existing pipe.
Strip member for spiral pipe and rehabilitation method of existing pipe
A strip member that can be made into a spiral pipe with an enlarged perimeter by being spirally wound. A first fitting portion (93) is disposed in one end portion of a cross-section orthogonal to an extending direction of a strip member (90) and a second fitting portion (94) is disposed in the other end portion of the cross-section. A spiral pipe (9) is made by spirally winding the strip member (90) and fitting the second fitting portion (94) with the first fitting portion (93) preceding by one turn. The strip member (90) has a cross-sectional configuration in which a reference width direction W.sub.9 connecting the first fitting portion (93) and the second fitting portion (94) on the cross-section is inclinable to an outer surface side toward the first fitting portion side when the strip member is wound.
Trenchless integrative repair method for concrete drainage pipeline with cracking, corrosion and subsidence
A trenchless integrative repair method includes steps of: S1, pre-casting steel rings according to an internal diameter of a defect pipeline, and forming grouting holes in the steel rings; S2, loading the steel rings to a defect position inside the pipeline, and fitting the steel rings to an internal wall of the pipeline to form reinforcing rings; S3, selecting a number of the grouting holes according to subsidence distribution; drilling a hole in the pipeline to reach a subsidence position and inserting a grouting pipe; steadily grouting the subsidence position with a polymer grouting system, and observing a lift condition of the pipeline; removing the grouting pipe after the pipeline is lifted to a predetermined level; and S4, pulling a lining pipe into the pipeline, and fitting the lining pipe to the steel rings and pipeline walls adjacent to the steel rings; curing the lining pipe.
Inversion liner assist adapter
A cured-in-place pipe rehabilitation device launcher having a launcher assembly and a liner assist chamber, the launcher assembly includes a nozzle, an air feed chamber above the nozzle to pressurize a cured-in-place liner to aid in urging it into a pipe to be rehabilitated, and an attachment plate is disposed above the adapter. The liner assist chamber includes a base plate to attach to the attachment plate, a liner assist frame coupled to the base plate, a plurality of rollers rotationally attached to the liner assist frame, and a motor operably attached to at least one of the plurality of rollers and configured to aid in urging the cured-in-place liner into the pipe.
METHOD AND DEVICE FOR HOLDING AND RELEASING A CABLE IN A PIPE SPLITTER
A cable retention and release mechanism includes a cable gripping device including a cable passage. A cable extends through the cable passage. A cable gripping device collar is movably coupled around the cable gripping device. An outer cable gripping device surface is seated against a cable gripping device receiving inner surface preventing movement of the cable gripping device relative to the cable gripping device collar. The cable gripping device receiving inner surface clamps the cable gripping device on the cable and prevents sliding movement of the cable. A jack is movably coupled with the cable gripping device collar. In a first engaged position the jack is engaged against the cable gripping device proximal end. In a second engaged position the jack unseats the outer cable gripping device surface from the cable gripping device receiving inner surface and releases the clamping of the cable.
Method of installing liner assembly for pipeline repair or reinforcement, and liner assembly and steam generator for same
A method of installing a liner assembly for pipeline repair or reinforcement includes: pulling a prepared liner assembly into position in the pipeline, the liner assembly including a tubular liner wetted with a curable compound; introducing fluid into the inflatable bladder to bring the tubular liner into firm contact with an interior surface of the pipeline; flowing the fluid continuously through the bladder and discharging the fluid into the pipeline, while maintaining the liner assembly in an inflated condition; measuring a flow rate and a temperature of the fluid entering the bladder; calculating a time period sufficient for the tubular liner to cure based on: an amount of heat required for curing, based on dimensional information of the liner, and the measured flow rate and temperature of the fluid; and maintaining the liner assembly in an inflated condition for the time period sufficient for the tubular liner to cure.
PIPE LINING SYSTEMS AND METHODS OF USE
Systems and methods for pipe lining systems and methods of use are described. Systems and methods may include a CIPP lateral liner that is inserted into a bladder forming a CIPP liner assembly that can be inserted into a pipe line for a pipe repair. CIPP liner assembly can include a membrane that produces superior results compared to the prior art. A backing ring may be used with these systems and methods.