E03F3/06

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.

System and method for sealing an annular space of a sewer connection line
11643801 · 2023-05-09 · ·

A system and method for reducing the amount of infiltrate entering a sewer system is provided. The system generally comprises a locking sleeve, hydrophilic gasket, and a locking mechanism, wherein a lateral porthole of said locking sleeve is surrounded by said hydrophilic gasket. The system is preferably installed at a lateral line connection point, wherein a hydrophilic gasket located around the lateral porthole creates the water barrier that prevents infiltrate from entering a newly refurbished host pipe through the hole cut to reestablish flow from the lateral line to the host pipe at the lateral line connection point.

System and method for sealing an annular space of a sewer connection line
11643801 · 2023-05-09 · ·

A system and method for reducing the amount of infiltrate entering a sewer system is provided. The system generally comprises a locking sleeve, hydrophilic gasket, and a locking mechanism, wherein a lateral porthole of said locking sleeve is surrounded by said hydrophilic gasket. The system is preferably installed at a lateral line connection point, wherein a hydrophilic gasket located around the lateral porthole creates the water barrier that prevents infiltrate from entering a newly refurbished host pipe through the hole cut to reestablish flow from the lateral line to the host pipe at the lateral line connection point.

Robust Device For Spreading Sand At Predetermined Dimensions And For Placing Ducts In A Sewerage Channel
20170370089 · 2017-12-28 ·

The application relates to a robust self-propelled device, having an oblong shape and a self-supporting housing (1) of the exoskeleton type, having attached a winch (10) and that is supported by a rail track (8), comprising active parts and supporting parts: a levelling blade (2) connected by means of swiveling rods (9) to the housing exoskeleton and in the top part thereof to a laser receiver (6) by a removable graduated rod (5), also in the rear part it is provided with an active device for placing ducts (3). The said device is operated by an actuating and control panel (7), mounted by means of a removable supporting rod (4). The said device serving to eliminate the need for the human presence in the sewerage channel, preventing the risk of accidents, increasing the construction rate, increasing the accuracy in laying the sand base and also placing the sewerage duct on the sand base.

Robust Device For Spreading Sand At Predetermined Dimensions And For Placing Ducts In A Sewerage Channel
20170370089 · 2017-12-28 ·

The application relates to a robust self-propelled device, having an oblong shape and a self-supporting housing (1) of the exoskeleton type, having attached a winch (10) and that is supported by a rail track (8), comprising active parts and supporting parts: a levelling blade (2) connected by means of swiveling rods (9) to the housing exoskeleton and in the top part thereof to a laser receiver (6) by a removable graduated rod (5), also in the rear part it is provided with an active device for placing ducts (3). The said device is operated by an actuating and control panel (7), mounted by means of a removable supporting rod (4). The said device serving to eliminate the need for the human presence in the sewerage channel, preventing the risk of accidents, increasing the construction rate, increasing the accuracy in laying the sand base and also placing the sewerage duct on the sand base.

Apparatus and Method for Transporting and Laying Pipe for a Pipeline
20230204130 · 2023-06-29 ·

A programmable and remotely operated and controlled pipe laying apparatus and method of using it for transporting and laying pipe for a pipeline, that can receive, hold, transfer and/or transport and unload pipe in a ditch or other tight space otherwise requiring a side boom. The apparatus has a mobile platform with a longitudinal central axis. A support extends in an extensible manner from the mobile platform and aligns the weight of the pipe with that longitudinal central axis. A pipe holder is associated with the support to facilitate the receiving, holding, transferring and unloading of the pipe on the mobile platform. The apparatuses can cooperate and work in tandem to carry larger and heavier pipe than a single apparatus can handle.

Storm drain trap installation device
09850650 · 2017-12-26 ·

A device for installation, maintenance, and/or removal of a catch basin hood and/or a catch basin trap; the device comprising a shank connecting a handle on one end and jaw-like arms on an opposite end, wherein the handle end of the shank further comprises a lever capable of actuating a snap-action installation of a catch basin trap.

Devices and methods for replacing existing utility piping
11255466 · 2022-02-22 ·

Devices and methods are provided for replacing buried utility piping while eliminating the need to perform a complete trench excavation to expose and remove the buried utility piping.

SYSTEM AND METHOD FOR IMPROVING DEFORMABILITY OF BURIED PIPELINES
20170247852 · 2017-08-31 ·

A system is provided that increases the deformability of buried pipelines to accommodate combinations of vertical, lateral and longitudinal displacements and subsequent curvatures caused by ground movements. Installation of this system prevents concentration of deformations which may cause catastrophic failures such as buckling, yielding, rupture, and weld failures. The assembly includes an element provided adjacent a pipeline and collapsible in two orthogonal directions; one, the longitudinal direction of the pipe, and two, a direction of expected lateral movement of the pipe. The collapsible element is configured to resist soil pressure in a direction orthogonal to the first two directions, and further provided is a supporting backing element adjacent an end of the collapsible element opposed to the pipeline, to prevent exposure of the collapsible element to soil pressure in one of the two orthogonal collapsible directions. The size and configuration of the installation depends on the soil and pipe properties, and type/magnitude of expected displacements.

Spacer for positioning a rehabilitating pipe

A spacer is inserted into a space between an existing pipe and a rehabilitating pipe to adjust a position of the rehabilitating pipe with respect to the existing pipe. The spacer has an elongated shape with both end portions in a longitudinal direction thereof cut off at an oblique angle and has a transverse width increasing gradually from an upper surface portion to a bottom surface portion. A space is formed in the bottom surface portion to correspond to a shape of the upper surface portion, thereby allowing a number of the spacers to be stacked on one another in a thickness direction thereof. The upper surface portion has a flat-plate shape with a flat rectangular surface region.