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Class 405/184.3 - Pipe splitting, breaking, or expanding


Subclass of Class 405 - Hydraulic and earth engineering
Definition: Subject matter for (1) bursting apart the pipe by dividing
No. of patents: 118
Last issue date: 02/07/2012


1      
NumberTitleIssue Date
8109694Replacement of underground pipes
This document discusses, among other things, devices, apparatuses, and methods for the replacement of existing underground pipes. In general, an apparatus comprises a body, including a receiving portion, and a breaking assembly adapted to be positioned within the re...
02/07/2012
7918626Systems and methods for pipe replacement
Systems and methods for concurrently destroying old pipes and installing new pipes in their place. An exemplary embodiment is a pipe bursting and replacement tool that includes a body and first and second connectors. The body has a shape that generally tapers from a...
04/05/2011
7914233Method and apparatus for installing an underground pipe
A method for installing an underground pipe using a ground piercing tool comprises the steps of: fitting an expander onto a front nose of the tool, securing the pipe to the expander so that the ground piercing tool is disposed inside of the pipe, operating the tool ...
03/29/2011
7891908Pipe extracting tool
A pipe extracting tool for use with first and second pipes mated together and having a gasket disposed therebetween includes an arcuate blade and a driving member portion extending radially outwardly from the arcuate blade. The arcuate blade is sized and shaped to s...
02/22/2011
7824130Apparatus and method for joining a pipe conduit to a drilling device, expanding device or pull-in device
The invention relates to an apparatus and a method for joining a pipe conduit to a drilling device, expanding device or pull-in device, in which a pulling-force generator arranged in the drilling device, expanding device or pull-in device exerts a compressive force ...
11/02/2010
7578636Method and device for pipe splitting
A device and method for pipe replacement is shown. One advantage of devices and methods provided includes a splitting blade that provides a progressive cut into challenging pipe configurations such as ductile materials, thin walled pipes, corrugated pipes, or combin...
08/25/2009
7559722Method and apparatus for pipe reforming and clearing
A method for reforming or rerounding an underground pipe includes the initial steps of inserting a reforming tool into the underground pipe and locating the pipe reforming tool at a location to be reformed. At least two arms of the reforming tool are then extended i...
07/14/2009
7448829Replacement of underground pipes
This document discusses, among other things, devices, apparatuses, and methods for the replacement of existing underground pipes. In general, an apparatus comprises a body, including a receiving portion, and a breaking assembly adapted to be positioned within the re...
11/11/2008
7390143Articulated 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
7384214Pipe splitter and method
A pipe splitting assembly includes a pipe splitter, for instance, a cutter with one or more blades. An expander is flexibly coupled with the pipe splitter and allows the pipe splitter to rotate out of alignment with the longitudinal axis of the expander. In one exam...
06/10/2008
7371031Sag correction system
A housing has a central recessed area with a first end and a second end. Each end has an inside rim with at least one aperture there through. The housing has an outside end with an outside end rim with at least one aperture there through. The housing has a central p...
05/13/2008
7353889Rotary 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
7347283Using a rotating inner member to drive a tool in a hollow outer member
A rotating inner member is used to drive a downhole tool housed within the hollow outer member of a dual-member drill string. The downhole tool preferably will be adapted to receive rotational energy from the inner member. In a preferred embodiment, the downhole too...
03/25/2008
7341404Dual 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
7308944Expander tool for use in a wellbore
The present invention generally relates to apparatus and methods for expanding a tubular. In one embodiment, an expander tool includes a body having at least one recess therein. An expansion assembly disposable in the at least one recess includes a piston that outwa...
12/18/2007
7255516Method 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
7231331Method and system to detect stress corrosion cracking in pipeline systems
A method for predicting the location of stress corrosion cracking in a steel gas pipeline in which in-line stress corrosion cracking smart tool data, external low level metal loss data and soil characterization data are compiled to predict the location of stress cor...
06/12/2007
7220080Sag correction system
A housing has a central recessed area with a first end and a second end. Each end has an inside rim with at least one aperture there through. The housing has an outside end with an outside end rim with at least one aperture there through. The housing has a central p...
05/22/2007
7217065Modular 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
7203263Core spray apparatus and method for installing the same
A core spray T-box attachment assembly for a core spray nozzle includes a primary cruciform wedge and a secondary cruciform wedge in contact with the primary cruciform wedge to form a cruciform wedge subassembly adapted for insertion within a bore of the core spray ...
04/10/2007
7191829Gripper assembly for downhole tools
A gripper assembly for anchoring a tool within a downhole passage and for possibly assisting movement of the tool within the passage. The gripper assembly includes an elongated mandrel and flexible toes that can be radially displaced to grip onto the surface of the ...
03/20/2007
7175367Cable 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
7172370Cutting 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
7156181Puller-thruster downhole tool
A method and apparatus for propelling a tool having a body within a passage. The tool includes a gripper including at least a gripper portion which can assume a first position that engages an inner surface of the passage and limits relative movement of the gripper p...
01/02/2007
7156584Method 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
7156585Method 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
7140806Rod pulling and pushing machine for pipe bursting
A rod pushing and pulling machine includes at least one hydraulic cylinder having a front end thereof engagable with a reaction surface at an entry opening of a existing pipeline or borehole, a spindle assembly, and a dual vise assembly. The spindle assembly include...
11/28/2006
7131791Pipeline 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
7128499Method 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
7128168Reamer apparatus for ground boring machine
The invention provides a reamer apparatus for a ground boring machine that is capable of restricting increase in drawing resistance when performing drawing of a buried pipe by using a reamer and of efficiently performing drawing operations of the buried pipe without...
10/31/2006
7125001Method 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
7108082Hole reaming apparatus and method
An enhanced reaming apparatus and method are disclosed. A reaming assembly may have a motor and a pump that provide linear force, torsional force, and pressurized drilling fluid to a reamer to cause the reamer to enlarge the bore of a pilot hole. The reamer may have...
09/19/2006
7086808Method 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
7055621Method 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 ...
06/06/2006
7048257Winch 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
7044221Apparatus for coupling a tubular member to a preexisting structure
An apparatus for coupling a tubular member to a preexisting structure. ...
05/16/2006
7037041Precast 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
7036599Method and apparatus for cutting underwater structures
A method for the cutting of underwater structures below the level of the sea bottom on which they are installed, comprises determining an ideal plane of cutting, having considered the characteristic features of the structure i.e. its morphology and its positioning o...
05/02/2006
7025536Tandem 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
7018137Apparatus and process for installing “T” couplings on underground pipe
A tool assembly and a process for using it is provided, wherein a single elongate handle member may be used, through a small hole at the ground surface, to reach underground pipes for installing different sized strap “T” couplings on different sized pipes, and f...
03/28/2006
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