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| Number | Title | Issue Date |
| 7726909 | Apparatus, system, and method for concurrently laying multiple pipelines An apparatus, system, and method are disclosed for concurrently forming a plurality of pipelines. The apparatus includes a support chassis coupled to at least one transportation facilitation member. The transportation facilitation member facilities the movement of t... | 06/01/2010 |
| 7465124 | Method and apparatus for installing underground pipe A ground piercing pipe tool for carrying and depositing pipes of different inner diameter under a ground surface, comprising a ground piercing tip and impact-receiving end cap respectively connected to forward and rear ends of a rod and characterized by at least one... | 12/16/2008 |
| 7398797 | Pipe lining method There is provided a pipe lining method wherein a lateral pipe lining material and a main pipe lining material are securely joined. After a lateral pipe has been lined, a start liner is applied to the main pipe and a main pipe lining material is then inserted. A heat... | 07/15/2008 |
| 7261493 | Device and method for laying and joining pipe A pipe installation device and a method for laying consecutive lengths of bell and spigot pipe. The pipe installation device installs sequential pipe lengths. The pipe installation device includes a pipe supply system and a pipe alignment system attached to a carria... | 08/28/2007 |
| 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 |
| 7182133 | Elevator sensor At least one sensor is mounted for monitoring the vertical position of an elevator relative to selected features on a tubular string. A variety of sensor types is provided. Optional mounting arrangement permits the sensors to be situated close to a tubular and free ... | 02/27/2007 |
| 7134491 | Leak remedy through sealants in local reservoirs The present invention provides a method for remedying minute seal leaks in downhole tools and equipment. The various embodiments of the present invention utilize pressure activated liquid sealants stored in local reservoirs to remedy such leaks. ... | 11/14/2006 |
| 7080957 | Pipe puller An apparatus for pulling a first pipe into contact with a stationary second pipe includes a strut having a first end and second end. A force generating apparatus is mounted to the strut, and is configured for pulling the first pipe relative to the second pipe. ... | 07/25/2006 |
| 7070359 | Microtunneling systems and methods of use A tunneling system including a tunneling apparatus including a cutting structure for forming a borehole and at least one linkage section for transmitting a force generally toward the cutting structure is disclosed. A method of disposing a casing string within a subt... | 07/04/2006 |
| 7037042 | Device and method for laying and joining pipe An auto-advancing pipe installation device and a method for laying consecutive lengths of bell and spigot pipe. The auto-advancing pipe installation device installs sequential lengths of pipe in a trench. The auto-advancing pipe installation device includes a locomo... | 05/02/2006 |
| 7037043 | Methods for lining pipes and connecting the lined pipe with adjacent or lateral pipes A section of a host pipe is removed, a flange is placed at one end of the host pipe section and split sleeve halves are secured to one another and at one end to the flange to cantilever the split sleeve from the end of the host pipe. A deformed thermoplastic liner i... | 05/02/2006 |
| 7021338 | Separated sanitary and storm sewer system An apparatus and method for improving the operation of sewer systems includes a first set of sewer lines connected to a source of other water and a second set of sewer lines of smaller diameter than the first sewer lines connected to sources of sanitary effluent, th... | 04/04/2006 |
| 6979028 | Pipe joint A pipe joint is made up of a hollow cylindrical joint body made of an elastic material with a prescribed length, a circular flange embedded into each of the ends of the joint body, through holes provided axially at prescribed intervals in the direction of the circum... | 12/27/2005 |
| 6969217 | Pipe puller An apparatus for pulling a first pipe into contact with a stationary second pipe includes a frame and a strut pivotally mounted to the frame about a first pivot axis, the strut having a first end and second end. A pivot assembly is pivotally mounted to the frame abo... | 11/29/2005 |
| 6939083 | Apparatus and method for connecting pipes during underwater pipe-laying A method of welding together the ends of outer pipe sections (16A, 16B) of pipe-in-pipe pipeline to be laid on a seabed employs an annular member (5) interposed between adjacent lengths of pipe. The annular member comprises a first axial part ( | 09/06/2005 |
| 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 |
| 6843619 | Apparatus able typically to transform a frame mounted on crawler tracks into a pipe playing machine An apparatus transforms a motorized frame mounted on crawler tracks and having a rotatable horizontal platform, into a pipeline laying machine or the like. A first structure is hinged to the platform on a horizontal axis at one end, at its other end, has a coupling ... | 01/18/2005 |
| 6830412 | Device for digging narrow trenches and laying prefabricated tongued and grooved components A trencher comprising a cutting disc (2) with a prefabricated tongued and grooved element feeder comprising a sweeper box (32) with a U-shaped transverse cross section closed at the front by a rake (34), in such a way that earth cannot fall insi... | 12/14/2004 |
| 6742964 | Method for installing conduit or the like on mountainside A method for installing conduits on a mountain is provided. The method includes placing at least one cable longitudinally across a ridge of the mountain and installing the at least one cable on a front side and a back side of the mountain. The front and back sides o... | 06/01/2004 |
| 6739803 | Method of installation of electrically heated pipe-in-pipe subsea pipeline Methods are provided for installing an electrically heated pipe-in-pipe pipeline on the seafloor. Inner and outer pipe segments are formed and the inner pipe is coated and insulated. Coating may include sprayed polyurethane foam and insulating half-shells that are p... | 05/25/2004 |
| 6588984 | Method for installing conduit or the like on mountain surface using steel cable A method for installing conduits on a mountain is provided. The method includes placing at least one cable longitudinally across a ridge of the mountain and installing the at least one cable on a front side and a back side of the mountain. The front and b... | 07/08/2003 |
| 6561731 | Portable irrigation pipe installation and removal system A portable pipe irrigation system that is used primarily for temporary drip and sprinkler installations includes a unique trailer that comprises a platform which simplifies installation and removal of the irrigation system. The trailer is either self prop... | 05/13/2003 |
| 6068426 | Method of connecting conduits The method concerned is for connecting a section of buried main conduit (120) to a secondary conduit. For this purpose, a starting pit (200) and a finishing pit (204) are dug, a drilling device comprising a series of rods to be placed end to end is lowere... | 05/30/2000 |
| 5967698 | Permitting two adjacent pipe lengths to be joined together A method for permitting the joining together of two adjacent pipe lengths with adjacent ends curving with substantially the same sense, the method comprising rotating the end of one of the pipe lengths about its axis until it curves in substantially the o... | 10/19/1999 |
| 5803665 | Method and apparatus for continuous production of quick-setting foamed cement grout with selectively adjustable proportions A method and apparatus for continuous production of a quick-setting foamed cement grout, in which the individual constituents of the grout are proportionally adjustable. Finished foam and cement slurry are mixed at metered rates to form a foamed cement gr... | 09/08/1998 |
| 5795101 | Pipe laying robot apparatus and method for installing pipe A pipe laying robot for manipulating an elongated workpiece such as a pipe section. The robot is a grasping apparatus particularly adapted for placing pipe in a trench. The apparatus is designed to be suspended from a lifting device such as a backhoe, and... | 08/18/1998 |
| 5775842 | Double containment under ground piping system A coaxial piping system connected between an underground pump and an above-ground liquid dispenser is used to provide containment of the pumped liquid from the underground piping system, preventing unintended release into the environment. A pair of coaxia... | 07/07/1998 |
| 5749678 | Device for driving a tunnel or drain pipe The invention relates to a device for driving a tunnel or drain pipe along a stretch (14) leading from a starting shaft (10) to a target shaft. The device is primarily intended for making micro or mini-tunnels in which pipe sections (62) are pressed one b... | 05/12/1998 |
| 5707175 | Excavating and pipe laying machines A pipe laying machine comprises a vehicle carrying a trench excavator followed by a pipe laying box running in the trench. Pipe lengths are stored in the pipe laying box one above another and the lowermost pipe length is periodically released by movement ... | 01/13/1998 |
| 5664912 | Tool for a sewer robot The tool has a sheathing plate (34) having an outlet opening (39) for a spackling composition, to which outlet opening (39) a pressure line (12) for the forcing-in of a sealing composition can be connected. In order to reduce the time required for the rep... | 09/09/1997 |
| 5649786 | Apparatus for down hole fusing The present invention is directed to a method for making service connection to polyethylene replacement sewer pipe. Specifically, the method involves the steps of (1) locating the service; (2) excavating an opening less than two feet in diameter from the ... | 07/22/1997 |
| 5609439 | Method of and apparatus for repairing and sealing junctions between mains and branch pipes A faulty junction between a main pipe and an entering branch pipe is repaired and sealed by using a bladder which is carried between two bearing blocks. The bladder is prepared with a resin impregnated mat, which, when the bladder is pulled and turned int... | 03/11/1997 |
| 5605419 | Underground duct banks Flexible, elongated, tubular ducts or conduits are assembled above ground on transverse supports into a duct bank of an array of layers held by a plastic grid of transverse spacers. An underground trench can be excavated having substantially straight side... | 02/25/1997 |
| 5580589 | Apparatus for bending plastic pipe The apparatus comprises a frame having a die pivotally connected to it at one end and anchorage means pivotally connected to it at the other end. The anchorage means carries a first roller. A second roller is adjustable transverse to the frame. A pipe pus... | 12/03/1996 |
| 5580186 | System for conveying a fluid through an under-the-ground location and method of making the same A system for conveying a fluid through an under-the-ground location and method of making the same are provided, the system comprising a primary flexible conduit for conveying the fluid therethrough and having an outer peripheral surface and an inner perip... | 12/03/1996 |
| 5560655 | Electrical conduit coupling with lubrication fitting The present electrical conduit coupling includes an electrical conduit coupling 10 and a lubrication fitting 11 thereon. The coupling includes a hollow body 12 including an external surface 13 and an internal surface 14. The internal surface defines a cen... | 10/01/1996 |
| 5558464 | System for conveying a fluid through an under-the-ground location and method of making the same A system for conveying a fluid through an under-the-ground location and method of making the same are provided, the system comprising a primary flexible conduit for conveying the fluid therethrough and having an outer peripheral surface and an inner perip... | 09/24/1996 |
| 5553975 | Method of installing underground pipes for sewer lines A method of installing sewer pipes for a new sewer line for achieving proper gradient, utilizes a plurality of two-piece pipe bracket-mounts. Typically, each length of sewer pipe is supported by two such bracket-mounts. Each two-piece bracket-mount consis... | 09/10/1996 |
| 5522699 | Pipe laying assembly A pipe laying apparatus for assembling segments of pipe into a pipeline, the pipe laying apparatus having a pipe storage assembly supported by a driving assembly. A pipe removing assembly removes individual pipe segments to a queuing area. A pipe orientin... | 06/04/1996 |
| 5505565 | Apparatus for making up threaded pipe joints into a pipeline An apparatus for making up threaded pipeline joints includes conventional casing tongs supported on a truck for movement between a stowed position and an operative position over the side of the truck with the axis of rotation of the casing tongs being gen... | 04/09/1996 |
