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| Number | Title | Issue Date |
| 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 |
| 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 |
| 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 |
| 7017650 | Earth loop energy systems Wellbore heat loop systems, fillers for bores in the systems, and methods of the use of such systems; the systems in certain aspects having a heat loop wellbore in the earth having heat loop pipe extending down to one side of a bottom member and up therefrom on anot... | 03/28/2006 |
| 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 |
| 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 |
| 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 |
| 6511260 | Plow for installing utility lines A utility line guide chute disposed behind a plow for installing multiple utility lines. Divider members disposed between guide chute-side walls are provided for guiding the multiple utility lines in the top of the guide and out a lower rearward portion o... | 01/28/2003 |
| 5741088 | Apparatus for underground excavation An excavation apparatus comprising: a wedge member for driving through the ground and for slidingly contacting and lifting an overburden located beneath the surface of the ground substantially toward the surface of the ground; a driving attachment member ... | 04/21/1998 |
| 5558465 | Method and device for laying an underground telecommunications cable To lay an underground cable, a first drum is stationarily positioned and supplies the cable to a trench that is dug in the ground. A hauling pig is connected to the leading end of the cable. A second drum, mounted to a movable tractor, supplies a tube to ... | 09/24/1996 |
| 4981396 | Multiple pipe installation backfilling, and compaction attachment A multiple pipe chute installation for continually and progressively excavating a trench, laying flexible utility pipe a predetermined vertical distance apart, refining and refilling the soil around the laid pipes, and compacting the refilled soil is disc... | 01/01/1991 |
| 4714381 | Machine for laying conduit and methods for use thereof An apparatus and method for laying conduit within a trench, using a separable boxlike structure with end walls, side walls, a fill bin compartment internal of the boxlike structure for receiving fill material and dispensing fill material onto the bottom o... | 12/22/1987 |
| 4661018 | Apparatus for and method of installing underground cable having above ground terminals An apparatus for installing cable underground is disclosed herein along with its method of operation. The apparatus utilizes a power driven land vehicle and a cable laying plow blade supported by and for movement with the vehicle in a way which places a b... | 04/28/1987 |
| 4629363 | Continuous conduit laying apparatus A continuous concrete encased conduit laying apparatus is attached to the rear of a tractor in a cantilevered fashion and can be raised and lowered into the ground by the tractor. The apparatus has two sections which are pivotally attached to each other. ... | 12/16/1986 |
| 4418561 | Apparatus for manufacture of tunnel tubes This invention relates to improved apparatus and process for manufacture of tunnel modules and tunnel sections used to build underwater tunnel tubes. A collapsible fixture is used to roll up a steel plate into a cylindrical shell. Cables wrapped around ch... | 12/06/1983 |
| 4406151 | Collapsible fixture for manufacture of tunnel tubes An improved collapsible fixture for fabrication of tunnel modules and tunnel sections for building underwater tunnel tubes is provided. The fixture has a series of shell-like support members along its length, each member having a stationary base portion, ... | 09/27/1983 |
| 4406150 | Apparatus and process for improved manufacture of shells for tunnel tubes This invention relates to improved apparatus and process for manufacture of tunnel modules and tunnel sections used to build underwater tunnel tubes. A collapsible fixture is situated to roll up flat steel plate into a circular shell for the tunnel module... | 09/27/1983 |
| 4332511 | Cable burying apparatus An apparatus for simultaneously burying a plurality of cables in a previously excavated trench in a spaced relationship to each other and for protectively surrounding those spaced apart cables with sand comprises a cable supply vehicle from which the plur... | 06/01/1982 |
| 4318638 | Cable detensioning apparatus A buried cable laying apparatus to lay a cable in an open trench in the ground in a relaxed or tension-free state. The apparatus progressively forms a trench and then buries detensioning line and a cable in the trench. The detensioning line is in tension ... | 03/09/1982 |
| 4162865 | Method for laying carrier cables, such as telephone lines The invention relates to a method for laying carrier cables, more particularly telephone lines, comprising the steps of burying a bundle of pipes connected to a connection box supplied by a main cable, severing certain of the pipes forming part of the bun... | 07/31/1979 |
| 3977703 | Multiple duct underground conduit Multiple duct underground conduit and method of installing the same which involves plastic tubing and male and female coupling plates which can be field assembled at the trench site to form sections which are then connected to each other in the trench wit... | 08/31/1976 |
| 3948059 | Cable plow chute multi-lay cables A cable guiding and dispensing chute for use with a ground slitting or trenching implement includes two members releaseably secured together to define a J-shaped box-like structure to guide a plurality of cables which are being dispensed from a drum or re... | 04/06/1976 |
| 3931717 | Multiple cable chute A cable guiding chute suitable for attachment to a ground slitting blade to dispense a plurality of cables includes a pair of generally vertical sidewall members, forward and trailing webs extending between the sidewall members to define a cable passagewa... | 01/13/1976 |
