Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 8172482 | Apparatus and method for providing access to a buried pipe The pipe access device is comprised of a curved plate adapted to engage an underground pipe along an arc of the outer surface of the pipe, and a boss extending upwardly from the curved plate about an aperture in the curved plate. The curved plate extends along an ar... | 05/08/2012 |
| 7993078 | Method and apparatus for installing an underground pipe A method of installing an underground pipe includes a step of placing a leading end of a pipe section at an entry point for the underground pipe. An arcuate soil shoe is attached to an inside surface of the pipe section at or near the leading end of the pipe section... | 08/09/2011 |
| 7967530 | Sub-ducting apparatus A sub-ducting apparatus comprising a sub-duct, and a remotely operable path-finding head for facilitation of the subduct into a duct. The head is detachable at the end of the subduct and includes an expandable portion or a cutter, as a result of which, twisted or ja... | 06/28/2011 |
| 7963723 | Overdrilling apparatus An apparatus for overdrilling a buried line includes a rotatably driven thrust linkage and/or traction linkage, and has a forward end which is connected to a ring-shaped to hollow cylindrical overdrilling head which embraces the line. The overdrilling head is provid... | 06/21/2011 |
| 7699564 | Self-contained keyhold weld fitting and method of use A method of attaching a branch outlet fitting to a metal pipe buried beneath the earth's surface while causing reduced disturbance to the earth above the pipe, comprising digging a vertical excavation from the earth's surface to expose a short length of the pipe; po... | 04/20/2010 |
| 7452161 | Apparatus for sealing and isolating pipelines A pipeline tool for use within a pipeline comprises a tool body with an internal flow bore, a swellable component disposed about the tool body, and a temporary seal disposed internally of the flow bore. The pipeline tool may further comprise a tracking device attach... | 11/18/2008 |
| 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 |
| 7371031 | Sag 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 |
| 7360559 | Steam cure of cured in place liner A process for lining an existing pipeline or conduit with a flexible resin impregnated cured in place liner by pulling in the liner and inflating an eversion bladder with air and curing the liner with flow-through steam without loss of pressure is provided. The blad... | 04/22/2008 |
| 7351011 | Apparatus for defining a passageway through a composition An apparatus for defining a passageway through a composition between first and second locations. The apparatus has a cable pulling assembly and a support for the cable pulling assembly. The cable pulling assembly has a capstan assembly, with a part of the capstan as... | 04/01/2008 |
| 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 |
| 7325559 | Method for connecting a branch pipe to a main pipeline and underground network for distributing fluid Method in which the following operations are carried out: a) digging an exploration hole (8) in order to open up a main pipeline (2) which has an upper edge (10) which extends at an upper level (12) which is substantially con... | 02/05/2008 |
| 7303359 | Pipe reinforcement system and method A pipe reinforcement system for reinforcing a pipe including a pipe section having an inner and an outer elbow surface separated by a pipe opening with a plurality of ceramic tiles overlying the pipe section, each of said tiles having a generally arcuate inner surfa... | 12/04/2007 |
| 7302823 | Gauge for pipe bending machine A pipe bending system employing a sensing and indicating system that provides feedback to an operator regarding the position of components of the pipe bending system, such as the pin-up shoe and the stiffback. Apparatus for retrofitting a sensing and indicating syst... | 12/04/2007 |
| 7267507 | Method of reinforcing an embedded cylindrical pipe A composite structural reinforcement is realized within the pipe through in situ stratification of at least one band of reinforcement fibers and a resin matrix. The band is arranged according to a helicoidal path along the internal side of the pipe. ... | 09/11/2007 |
| 7258141 | Pipe liner apparatus and method A thermoplastic pipe liner assembly and method for installation in a pipeline by pulling the pipe liner assembly through the pipeline in a temporarily folded condition wherein the thermoplastic pipe liner assembly has a core inner liner, an outer liner with optional... | 08/21/2007 |
| 7252459 | Method and device for positioning a branch connection on a pipeline The following operations are carried out: a) digging an exploration hole (8), b) using a branch connection (10) which includes a main plate (12) and a fixing plate (22) which are held together, c) us... | 08/07/2007 |
| 7241076 | Method and device for repairing or reinforcing an underground pipe A method for reinforcing or repairing a pipe pulls a liner assembly with a flexible smooth bore liner and a semi-rigid helix that gives non-collapsible characteristics within the damaged pipe for both linear pipe sections and curved pipe sections. The existing pipe ... | 07/10/2007 |
| 7234523 | Hydraulic friction fluid heater and method of using same A method and apparatus for heating a portion of a subsea structure is provided. The method includes pumping a fluid through a length of tubing such that the temperature of the fluid increases. The temperature increase of the fluid is created by friction in the tubin... | 06/26/2007 |
| 7223051 | Removable maintenance port with method for rehabilitating manhole A removably insertable apparatus for creating and accessing manholes and a method for rehabilitating manhole structures and the like, using the apparatus. The apparatus comprises two sections, both of which are load bearing composite materials such as reinforced fib... | 05/29/2007 |
| 7220080 | Sag 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 |
| 7191801 | Apparatus and method for installation of pipe liner An apparatus and method for lining sewer pipes that utilize an adjustable form configured to conform to the shape and dimensions of the interior of a man-entry sized pipe line. The adjustable form can be used to position a sheet of liner material immediately adjacen... | 03/20/2007 |
| 7181985 | Conduit inspection apparatus and method There is disclosed a conduit inspection apparatus of a type adapted to be located within and transported along a conduit such as a duct, and a method of inspecting a conduit. In one embodiment, the conduit inspection apparatus (10) comprises a body ( | 02/27/2007 |
| 7180736 | Microelectronic package within cylindrical housing A microelectronic package comprises microelectronic assemblies and a housing having a cylindrical outer wall. The microelectronic assemblies include electronic components mounted on a substrate and are affixed to support surfaces of the inner wall of the housing. Th... | 02/20/2007 |
| 7178593 | Piggable separation system and method An inline well fluid separator is movable for pigging operations. The separator assembly has a housing with an inlet port and an outlet port. A separation unit is carried within the housing. The separation unit has an operational position in alignment with the ports... | 02/20/2007 |
| 7174920 | Method for repairing pipes The invention concerns a method for repairing a pressurized fluid supply pipeline (1) comprising a series of buried prestressed concrete pipe segments (2, 3, 4) which consists in: providing excavations in the trench, beneath suitably set portions (6... | 02/13/2007 |
| 7172369 | Methods for aligning pipes and connecting the lined pipe with adjacent or lateral pipes A deformed thermoplastic liner is drawn through a cut host pipe and split sleeve halves attached to it and then reformed to its cylindrical configuration using pressurized steam. The split sleeve halves are removed, and an adapter flange is fused onto a cut end of t... | 02/06/2007 |
| 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 |
| 7156192 | Open hole tractor with tracks A downhole tractor is provided that may be used in open or cased wells, and is also designed for use in open holes having a variety of soil/formation consistencies (e.g., soft, firm, rigid, etc.), varying diameters and non-uniform and irregular bore profiles. The tr... | 01/02/2007 |
| 7156124 | Segment for rehabilitating an existing pipe and a rehabilitating pipe assembled using segments A segment for rehabilitating an existing pipe has an integral structure comprised of an inner plate having an inner circumferential surface that is planar or curved with a prescribed curvature, two side plates provided upright on each side edge of the inner plate, a... | 01/02/2007 |
| 7137757 | Method and device for repairing or reinforcing an underground pipe A method for reinforcing or repairing a pipe pulls a liner assembly with a flexible smooth bore liner and a semi-rigid helix that gives non-collapsible characteristics within the damaged pipe for both linear pipe sections and curved pipe sections. The existing pipe ... | 11/21/2006 |
| 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 |
| 7128168 | Reamer 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 |
| 7108456 | Steam cure of cured in place liner A process for lining an existing pipeline or conduit with a flexible resin impregnated cured in place liner by pulling in the liner and inflating an eversion bladder with air and curing the liner with flow-through steam without loss of pressure is provided. The blad... | 09/19/2006 |
| 7094308 | Method for sealing an annular space A method for providing a seal in an annular space between a rehabilitative pipe liner and a conduit wall is provided. Areas on the surface of a section of a conduit wall surrounding lateral connections are provided with an expandable sealing agent, preferably during... | 08/22/2006 |
| 7083360 | Method for rehabilitating an existing pipe Segments are successively coupled in the circumferential direction and the vertical direction to provide a rehabilitating pipe that rehabilitates an exiting pipe such as a manhole extending in the vertical direction. The segments are coupled in the vertical directio... | 08/01/2006 |
| 7073979 | Method and apparatus for performing sewer maintenance with a thermal sensor A method and apparatus for performing maintenance on sewer pipes using a thermal sensor. The method and apparatus may be applied to the reinstatement of lateral openings after a liner has been installed in a main pipe. The thermal sensor detects the location of the ... | 07/11/2006 |
| 7075053 | Device for determining the position of a scraper A device for determining the position of a scraper which is displaceable for the transport of coating material in a supply path of thereof, the coating material comprises a sensor responding to the presence of the scraper. This sensor is accommodated in a separate m... | 07/11/2006 |
| 7063145 | Methods and systems for heating a hydrocarbon containing formation in situ with an opening contacting the earth's surface at two locations In an embodiment, a method for heating a hydrocarbon containing formation may include providing heat from one or more heaters to an opening in the formation. A first end of the opening may contact the earth's surface at a first location and a second end of the openi... | 06/20/2006 |
