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| Number | Title | Issue Date |
| 7384213 | Apparatus and method for constructing a curvilinear structure in an excavation A slit trench-excavating plough has an elongate frame supporting components of the plough, a number of side wall-supporters movable longitudinally, about and laterally relative to the frame, a number of wedge-shaped cutters pivoted laterally relative to the supporte... | 06/10/2008 |
| 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 |
| 7186059 | Padding machine and method of use An integrated padding machine that incorporates a front digging auger that is preferably mechanically as opposed to hydraulically powered, which in conjunction with a breaker bar assembly provides for digging and crushing capabilities, and that incorporates several ... | 03/06/2007 |
| 7144202 | Silt fence installation apparatus A machine to install the lower edge of silt fence fabric in a seam in the soil includes a frame with a plow member attached. The frame can be mounted to the three point hitch of a tractor so that the machine can be raised, lowered, and tilted while being supported b... | 12/05/2006 |
| 7044689 | Silt fence installation apparatus A machine to install the lower edge of silt fence fabric in a seam in the soil includes a frame with a plow member attached. The frame can be mounted to the three point hitch of a tractor so that the machine can be raised, lowered, and tilted while being supported b... | 05/16/2006 |
| 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 |
| 6736216 | Laser-guided construction equipment A construction apparatus (12) and method of controlling a construction apparatus from a laser source (38) made up of a substantially non-rotating beam (56). The construction apparatus includes a body (14), a construction tool (16) ... | 05/18/2004 |
| 6616378 | Device and method for storing and protecting data relating to pipe installation A device (6) for attachment to a pipe (7) to be installed in the ground has load cells (17) for detecting a pulling force applied to the pipe (7), as the latter is pulled through the ground, an inclinometer (18), for detecting the inclination of the devic... | 09/09/2003 |
| 6332738 | Fiber optic cable installation method and apparatus A fiber optic cable (10) is buried below ground, either by direct burial, or by being pulled through a previously buried duct. During cable burial, the instantaneous resistance between the sheath and ground (the sheath-to-ground resistance) is continuousl... | 12/25/2001 |
| 6280119 | Apparatus and method for placing and engaging elongate workpieces The invention contemplates a working implement, for use with an excavating type machine, which semi-automatically brings a pipe section to a specified grade, slope, and line for emplacement in a line of pipe sections to be laid on the specified grade slop... | 08/28/2001 |
| 5993115 | Pipeline trenching and laying device A pipeline trenching and laying device is disclosed, having a tractor supported portion, a ripper and a pipe feed chute. The tractor supported portion supports the pipe as it passes over the tractor. A plurality of rollers are spaced and elevated in a man... | 11/30/1999 |
| 5961252 | Underground utility installation tension monitoring arrangement and method An improved method of operating a drilling system for purposes of installing an underground line and associated apparatus are disclosed. The drilling system includes a drill rig which is positionable at a drilling site and a drill string which is configur... | 10/05/1999 |
| 5145290 | Pipe-laying apparatus Apparatus for laying pipe in a trench includes a housing with a bottom, side walls, a leading end wall and a trailing end wall, with a tapered nose at the leading end, the nose being designed to be pulled along a trench by a backhoe. The nose is hinged to... | 09/08/1992 |
| 4927294 | Method and equipment for laying an elongated element underground In mobile laying apparatus for laying an elongated element, such as a cable, in a trench, especially a trench in a sea bed, which apparatus is advanced in a predetermined direction and includes apparatus for digging the trench and ways along which the ele... | 05/22/1990 |
| 4744696 | Cable laying apparatus Optical fibre cable laying apparatus comprising a mobile carrier for paying out cable from a reel and laying the cable in a trench formed by a tyne on the carrier. The reel is rotated, to effect paying out, in a fashion such as to control the tension in t... | 05/17/1988 |
| 4741646 | Machine for laying conduct 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... | 05/03/1988 |
| 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 |
| 4692063 | System to control tension in a cable during underground placement A tractor provided with a cable reel at one end and a plow at the trailing end includes a system to monitor tension applied to the cable during underground placement. A capstan engages the cable while driven by a hyraulic motor and the pressure of the flu... | 09/08/1987 |
| 4643615 | Process and device for obtaining data relative to the position in a vertical plane of a supple pipe in the process of being buried The present invention relates to a process for determining the position in a substantially vertical plane of a supple pipe, such as a drain, in the course of being buried in the ground at the bottom of a trench by a working tool. According to the inventio... | 02/17/1987 |
| 4492492 | Guiding method for cable burying device and a device therefor The present invention aims at providing a method and a device for guiding the cable burying device along the cable effectively as well as accurately even if the cable should be reburied after repairment. The present invention is mainly characterized in th... | 01/08/1985 |
| 4293238 | Ditchless drainlayer A ditchless drainlayer comprising a frame mounting a cutter-type working element for laying drainpipes. It is provided with a hydraulic cylinder for changing its angular position and a transmitter of its angular position with an amplifier-converter. Also,... | 10/06/1981 |
| 4249630 | Plow guidance system A guidance system suitable for use in burying cable uses a previously buried signal-emitting cable to produce a signal along the cable path. A vehicle mounted plow used to plow a second path has a receiver which analyzes signal from the buried cable and d... | 02/10/1981 |
| 4244123 | Guidance device for drain tile laying machine An improved guidance device for use with an earthworking machine, more especially a drain tile laying machine, comprising a earthworking element mounted about a pivot connection. This guidance device comprises a signal emitter and two signal receivers mou... | 01/13/1981 |
| 4031709 | Tile degapper Disclosed is an apparatus to detect misaligned clay tiles in the chute of a tile-laying machine and realign any tiles incorrectly aligned. The apparatus is capable of being retrofitted onto existing tile-laying machinery as well as being incorporated into... | 06/28/1977 |
| 4027486 | Adjustably submersible breakwater A plurality of elongated tanks positioned in parallel relationship with respect to each other are swingably interconnected at their aligned ends to provide a yieldingly undulating breakwater apparatus. The buoyancy of each of the tanks is individually adj... | 06/07/1977 |
