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| Number | Title | Issue Date |
| 7963724 | Method of providing a support column A primary earth penetrating mandrel formed of a hollow shell steel plate octagonal in cross-section has an upper end and a blunt lower end joined by an upwardly and outwardly tapered wall. The mandrel is driven downwardly in the earth to simultaneously form a vertic... | 06/21/2011 |
| 7326004 | Apparatus for providing a rammed aggregate pier A primary earth penetrating mandrel formed of a hollow shell steel plate octagonal in cross-section has an upper end and a blunt lower end joined by an upwardly and outwardly tapered wall. The mandrel is driven downwardly in the earth to simultaneously form a vertic... | 02/05/2008 |
| 7275892 | Tool and method for installation of water pipe A tool used for installing water systems. The tool consists of a probe having a central body, a tapered end, and an anvil end. Pipe is slid over the central body forming a pipe and probe assembly which can be installed in soil traversing beneath an immovable structu... | 10/02/2007 |
| 7270500 | Method for installing an underground water pipe A method for installing water pipe beneath nonmoving objects with a presence in the earth with a tool for installing water pipe made of a central body, a ring encircling the central body, a tapered end, an anvil end, and a ring. The method further comprises selectin... | 09/18/2007 |
| 7267506 | Tool for installing an underground water pipe A tool for installing water pipe made of a central body, a ring encircling the central body, a tapered end, and an anvil end. Water pipe slides over the tapered end, over the ring and is stopped by the anvil in for impact installation in soil enabling water pipe to ... | 09/11/2007 |
| 7255181 | Method and device for the drilling of holes in ground or rocky material In a method and device for drilling, in particular percussion drilling or rotary percussion drilling, holes in soil or rock material, wherein a borehole is formed by a percussive and/or rotational movement carried out by a drill bit (1) mounted on a drill rod... | 08/14/2007 |
| 7225585 | Ground insertion plant stake support and deep root feeder A plant stake support and deep root feeder sleeve contains structure that provides insertion of the sleeve into a soil volume adjacent young bushes, plants and trees without digging an adjacent hole. The sleeve is inserted directly by impact force, whereby minimum s... | 06/05/2007 |
| 6536993 | Pile and method for installing same An apparatus for providing a mooring anchorage, and a method of drilling and installing a pile in ground comprising the steps of: providing a pile, providing a drill bit at an end of the pile rotatable relative to the pile, engaging the ground with the drill bit, a... | 03/25/2003 |
| 6368021 | Pile and method for installing same A method of drilling and installing a pile in ground comprising the steps of providing a pile, providing a drill bit at an end of the pile rotatable relative to the pile; engaging the ground with the drill bit, and rotating the drill bit relative to the ground and ... | 04/09/2002 |
| 6354769 | Apparatus and method for replacing in-ground elevator cylinder casings A method and apparatus for replacing old, in-ground hydraulic elevator lift cylinders in which a portable tower is erected within the elevator hoistway and a shoring sleeve of larger diameter than the old cylinder is secured to a head plate slidably mount... | 03/12/2002 |
| 5449253 | Method and apparatus for driving a tube into the ground by hammering, in particular for making a foundation pile The tube is hammered by means of a hydraulic or an electromagnetic hammer pressed against a pile-driving head situated at the bottom of the tube. The bottom of the tube is preferably provided with a hammering bearing surface and a removable head is used t... | 09/12/1995 |
| 5282701 | Method and apparatus for a loading test of a pile using a self-repulsive force The present invention relates to a method and an apparatus for a loading test of a pile using a self-repulsive force. The loading test is separately performed in two stages, a first stage to estimate the ultimate peripheral skin friction force and a secon... | 02/01/1994 |
| 5066168 | Cylindrical foundation support drivable into ground with removable helix A combined foundation earth anchor and installation unit includes a cylindrical foundation support which is open at opposite ends and adapted to at least partially be embedded in the ground, an installation drive component removably positioned within the ... | 11/19/1991 |
| 4725167 | Pile driving A screw-on splicer for use in driving composite pipe-shell piles and a screw-on tip for shell piles. Each has an outer diameter at least about 2 inches greater than the O.D. of the shell. An enlarged tip for shell piles, comprises a mass of concrete encas... | 02/16/1988 |
| 4708530 | Concrete foundation pile and device for driving the same into the ground A concrete foundation pile and a device for driving the pile into the ground. The pile is provided with an outer surface having a screw thread element extending over a considerable part thereof, and a cavity extending from an opposite end of the pile form... | 11/24/1987 |
| 4193459 | Post-hole driver A vehicle-supported post-hole driver comprises a frame adapted to be mounted on the pivot of the vehicle drawbar. It is supported in a fore-and-aft position by a fluid cylinder connected between the frame and the support vehicle, the fluid cylinder provid... | 03/18/1980 |
| 4095436 | Method of, and apparatus for, controlling the advance of a tunnel drive shield Apparatus is provided for controlling the advance of a tunnel drive shield. The drive shield is of the type having a plurality of elongate implements (or planks) which are supported and guided on a frame. Hydraulic rams are provided for moving the planks ... | 06/20/1978 |
| 4065933 | Method of reforming the ground This invention relates to a method of forming a solid foundation in soft ground or stratum by mixing chemical agent into the soft ground soil to solidify it. This ground reforming method comprises the steps of driving a casing into the soft stratum to be ... | 01/03/1978 |
| 4038827 | Pile A friction pile has an elongate columnar body which extends at least 1 m. down into the ground and is arranged to carry a structural load at its upper end. A number of rods or other elongate elements, each of smaller cross-sectional area than said body, a... | 08/02/1977 |
