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| Number | Title | Issue Date |
| 8109693 | Method of cutting target members using a cutting saw device A diamond wire saw and method provides a frame that includes a clamp that attaches to a target (e.g. piling, beam, tubular), an elongated toothed rack extending away from the mount and target, and a moving portion that carries the diamond wire and motor drives that ... | 02/07/2012 |
| 7922424 | Method of cutting target members using a cutting saw device A diamond wire saw and method provides a frame that includes a clamp that attaches to a target (e.g. piling, beam, tubular), an elongated toothed rack extending away from the mount and target, and a moving portion that carries the diamond wire and motor drives that ... | 04/12/2011 |
| 7674072 | Connection between a lateral and main pipe and method for making same Apparatus and method for connecting a lateral pipe to a main pipe are provided by a tool having a first end within the main pipe and a second end outside the lateral pipe so as to apply pressure to the below-ground connection of the main and lateral pipes from an ab... | 03/09/2010 |
| 7434315 | Method and device for pipe splitting A device and method for pipe replacement is shown. A pipe replacement device is shown that includes at least one scoring wheel to provide a more progressive cut that provides consistency in the split of the pipe. A pulling force is reduced using pipe replacement dev... | 10/14/2008 |
| 7390143 | Articulated lead for trenchless pipe replacement Trenchless pipe replacement apparatus equipped with articulated lead sections that flex and accommodate an irregular path of an old pipe line. The articulated lead sections are coupled together by a flexible joint that allows the lead section assembly to flex and fo... | 06/24/2008 |
| 7353889 | Rotary driven pipe-bursting tool An apparatus for bursting pipe is preferably adapted to receive rotational energy from the inner member of a dual-member drill string. In a preferred embodiment, a plurality of pipe-bursting members, driven by the interconnected inner members, cut or burst a subterr... | 04/08/2008 |
| 7351010 | Method and apparatus for salvaging underwater pipelines A method of salvaging a pipeline in a marine environment is disclosed. The method provides a frame having a perimeter that surrounds a pair of opposed cutting blades, the frame having a gate that enables the frame to be selectively placed around or removed from a se... | 04/01/2008 |
| 7351009 | Fiber optic installation structures in a paved surface, ducts, and methods therefor A fiber optic installation structure and method therefor includes a duct having an inner tube, at least one optical waveguide, and a jacket and is disposed within a channel of a paved surface. The jacket generally surrounds the inner tube. When the duct is disposed ... | 04/01/2008 |
| 7341686 | Device for arresting the propagation of a buckle in a double-walled pipe Device for arresting the propagation of a buckle in a double walled pipe. The device comprising an outer pipe wall having a defined external diameter and placed around an inner pipe wall, defining an annular space between the said outer and inner walls; provi... | 03/11/2008 |
| 7341404 | Dual capstan puller and method A puller is provided with a number of advantages. Pullers are described that have a high power to weight ratio, and a high power to volume ratio. Examples of pullers and pulling systems include harmonic drive gear reduction elements and configurations that provide h... | 03/11/2008 |
| 7337859 | Method and device for drilling a channel In a drilling method for creating a channel leading from surrounding soil into a shaft which is separated from the soil by a wall, a channel is drilled through the soil from a starting pit in the direction of the shaft using a first drill head. The first drill head ... | 03/04/2008 |
| 7270182 | Earth loop installed with sonic apparatus A method for installing a heat exchange pipe loop in a borehole, the method, in at least certain aspects, including drilling a borehole with a sonic drill system having a head and casing connected thereto, a drill apparatus on a lower end of the casing movable by th... | 09/18/2007 |
| 7267141 | Method of on-site production of novel textile reinforced thermoplastic or thermoset pipes Novel thermoplastic pipes which can withstand extremely high internally generated and/or applied pressures for utilization within, primarily, high pressure underground liquid and gas transport systems are provided. Such pipes are improvements over standard metal (i.... | 09/11/2007 |
| 7255516 | Method and apparatus for replacement of underground pipe An impactor for use with a directional boring machine for replacement of underground pipes includes a bursting head having a rearwardly opening recess and a front end opening that communicates with the recess. An inlet pipe is connected at its front end to a distal ... | 08/14/2007 |
| 7222669 | Method of repair of collapsed or damaged tubulars downhole A method of repairing tubulars downhole is described. A swage is secured to a force magnification tool, which is, in turn, supported by an anchor tool. Applied pressure sets the anchor when the swage is properly positioned. The force magnification tool strokes the s... | 05/29/2007 |
| 7217065 | Modular pipe breaking assembly and method A pipe breaking assembly is shown with a modular design that allows a user to more economically purchase a single base unit that is adaptable using a number of elements. Combinations of elements such as blade portions and expander cones, etc. allow the modular assem... | 05/15/2007 |
| 7204661 | Pipeline system utilizing cold bends An expansion loop for an above-ground pipeline that utilizes cold bent pipe sections having a bend angle of less than 90 degrees and a bend rate (in degrees per foot) of relatively low severity. ... | 04/17/2007 |
| 7179019 | Method and structure for laying communication cable in underground line, and members used for laying A laying method for laying communication cables (16) is provided which allows to lay optical fiber cables (20) in an underground pipeline such as a sewage pipe neither placing direct tension nor allowing slack on them, and for a main pipe in which a pl... | 02/20/2007 |
| 7175367 | Cable pulling machine A cable pulling machine of the invention includes a frame, a mechanical linkage including first and second links having first and second cable gripping shoes disposed thereon respectively in opposed positions, a latching cylinder actuable to cause the mechanical lin... | 02/13/2007 |
| 7172370 | Cutting system, device, and method for splitting pipes A cutting system for splitting pipes includes a main body and at least one blade and at least two blade mount assemblies by which the blade may optionally be connected to the main body. The first blade mount assembly, in a particular fitted state, holds the blade at... | 02/06/2007 |
| 7156584 | Method for installing a high or medium power cable in the ground The invention concerns a method for setting medium or high power electric cables (2) in the ground, which consists in digging a trench (14) evacuating the materials derived from the trench (14) towards a treatment device, for example by crushing... | 01/02/2007 |
| 7156585 | Method and apparatus for drawing a mole through a composition A method of advancing a mole to define a passageway through a composition between first and second locations spaced from each other a substantial first distance. The method includes the steps of: attaching the mole to a cable; providing a support; providing a cable ... | 01/02/2007 |
| 7131791 | Pipeline rehabilitation systems Devices and methods for streamlining the completion of work functions within a lateral pipe connected to a main pipe. A variety of different lateral devices may be used to aid in the process of relining the main or lateral pipe. A lateral location device is inserted... | 11/07/2006 |
| 7128499 | Method for extracting underground pipe A method for the removal of a ductile pipe includes passing a strand through the ductile pipe, crimping the ductile pipe in at least one location so that it is secured in a crimp about the strand and pulling the strand from an end of the ductile pipe with a winch or... | 10/31/2006 |
| 7125001 | Method and device for pulling a cable through a section of pipe An improved cable pulling device and method is shown. The cable pulling device is smaller, less expensive, and easy to use for lateral line replacement. The cable pulling device includes a cable contacting portion that provides supplemental frictional force during a... | 10/24/2006 |
| 7124779 | Device for fastening a manoeuvrable plug for plugging of pipes Arrangement at a plug for sealing liquid- or gas-carrying pipes, comprising several slips (15) arranged peripherally on the plug, so as to allow them to be pushed up along a conical force ring (25) by means of a hydraulic cylinder (5), where the... | 10/24/2006 |
| 7093657 | Earth loop installed with sonic apparatus A method for installing a heat exchange pipe loop in a borehole, the method, in at least certain aspects, including drilling a borehole with a sonic drill system having a head and casing connected thereto, a drill apparatus on a lower end of the casing movable by th... | 08/22/2006 |
| 7086808 | Method and apparatus for on-grade boring A method for installation of an underground pipe includes an initial step of boring a pilot hole through the ground at a predetermined grade angle by extending a drill string having a steerable boring bit mounted thereon through the ground. Upon reaching an end loca... | 08/08/2006 |
| 7048257 | Winch with telescoping mast A portable winch suitable for use in underground pipe bursting and replacement includes a mounting frame positionable at a top opening of a hole such as a receiving pit or manhole. A telescoping mast having a series of nested, top and bottom mast sections is mounted... | 05/23/2006 |
| 7037041 | Precast concrete pipe recycling machine The concrete pipe recycling machine is transportable to job sites for breaking apart concrete pipe and recycling the concrete and the steel reinforcement therein. The concrete pipe recycling machine has a mandrel type anvil which presses the top of the pipe upward t... | 05/02/2006 |
| 7025536 | Tandem apparatus for bursting and replacing pipe A tandem rod or cable apparatus for bursting and replacing pipe, which includes a frame, two sets of oppositely-disposed hydraulic cylinders having piston rods, each of which pairs of piston rods are attached to a yoke, with a gripping element provided in each yoke ... | 04/11/2006 |
| 7001106 | Installation of service connections for sensors or transmitters in buried water pipes A system for installing warning units in a buried pipeline. A small hole is drilled in the ground to the pipeline. A collar is affixed to one of the pipes of the pipeline. A valve with an internal passage is connected to the collar. A hole is drilled in the pipe. A ... | 02/21/2006 |
| 6978832 | Downhole sensing with fiber in the formation A portion of at least one fiber is moved from a wellbore into a formation such that the portion is placed to conduct a signal responsive to at least one parameter in the formation. One particular implementation uses fiber optic cable with a process selected from the... | 12/27/2005 |
| 6955219 | Earth loop installation with sonic drilling A method for installing a heat exchange pipe loop in a borehole, the method in at least certain aspects, including drilling a borehole with a sonic drill system having a head and casing connected thereto, a drill shoe on a lower end of the casing movable by the soni... | 10/18/2005 |
| 6953305 | Bundle of pipes and method for parallel arrangement of pipes according to a bore and swivel method A bundle of tubes or pipes is arranged without trenches according to a fluid-assisted drilling method. A bore channel is made in a first boring step and the bore channel is widened when the bore/flushing head is removed therefrom, the bundle of tubes being drawn int... | 10/11/2005 |
| 6942426 | Process and apparatus for repairing pipes A two-stage process for repairing pipes at elevated temperatures and at elevated pressure. The process comprises the steps of preparing and displacing a hose assembly within the pipeline needing repair. A pressure medium is then introduced into the hose assembly rai... | 09/13/2005 |
| 6913091 | Method and apparatus for replacement of underground pipe An impactor for use with a directional boring machine for replacement of underground pipes includes a bursting head having a rearwardly opening recess and a front end opening that communicates with the recess. An inlet pipe is connected at its front end to a distal ... | 07/05/2005 |
| 6899842 | Method and installation for laying a cylindrical pipe on a support A process and plant for laying a pipe in a trench comprising placing a flattened tubular preform in the trench, the perform having a reinforcement surrounding an inner seal, the reinforcement being impregnated with a resin, and inflating the perform in the trench. | 05/31/2005 |
| 6792820 | Method and accessories for pipe replacement A method of replacing an existing underground pipe, especially a sanitary sewer line, uses a boring machine that advances a drill string of hollow rods through the existing pipe. The method includes the steps of mounting a rotary cleaning tool on a distal end of the... | 09/21/2004 |
| 6755593 | Pipe replacement method and rotary impact mechanism for pipe bursting An impactor for use with a directional boring machine having a drill string connectable to the impactor for pulling the impactor through an existing pipeline uses rotation of the drill string to drive an internal striker. The internal striker delivers impacts in the... | 06/29/2004 |
