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| Number | Title | Issue Date |
| 7407343 | Hydraulic-forced resonance-free vibratory sheet piling driving and extraction machine An apparatus and method for continuously preloading during installation and removal of steel sheet piles, steel pilings, and casing piles, with a telescoping, articulated boom having a free end for creating the downward driving force, a weighted base to provide supp... | 08/05/2008 |
| 7308953 | Mobile drilling rig An embodied mobile drilling rig is made of three sections, two substructures and a mast section, which are easily transported and installed at a drilling site. Each substructure includes a mast starting section; a floor side box connected to the mast starting sectio... | 12/18/2007 |
| 7255180 | Modular drill system requiring limited field assembly and limited equipment support A modular transfigurable drilling rig comprises one or more transfigurable containers with drilling equipment to form an operational drilling rig. The transfigurable containers include a first and second load bearing support and a load bearing bottom disposed betwee... | 08/14/2007 |
| 7255406 | Method for manufacturing track for auger boring machine An auger boring machine having a drive mechanism for moving the machine along a desired direction of travel includes a drive motor having a shaft and a pinion mounted on the shaft. A method for manufacturing a track for such a boring machine includes providing a tra... | 08/14/2007 |
| 7063172 | Grounding rod driving device A driving assembly includes a driving device that is slidable along one or more vertical supports as the driving device drives a driving member into an object. The driving assembly may be suspended from a crane or other overhead support, whereby the vertical support... | 06/20/2006 |
| 6938703 | Automated post driver A post driving apparatus includes a chassis having a longitudinal axis and a frame carried by the chassis. The frame includes an upper support member having an axis of elongation substantially perpendicular to the longitudinal axis of the chassis. A post magazine is... | 09/06/2005 |
| 6533045 | Portable drilling rig A portable drilling rig 20 for drilling water wells or installing geothermal pipe systems in the ground 22. The portable drilling rig 20 is removably mounted on a truck bed 24. The single I beam mast 30 of the rig 20 pivots to a horizontal position 32 on ... | 03/18/2003 |
| 6349777 | Post driver having adjustable legs A post driver which is mounted to the three-point hitch of a tractor is provided with a support to reduce wobble of the post driver during operation and to facilitate mounting of the post driver to the tractor's three-point hitch. The post driver has a ca... | 02/26/2002 |
| 6257350 | Multiple position staking system for a horizontal directional drill A multiple position stakedown assembly for a horizontal directional drill machine which installs stakes into the ground in a variety of different locations with a single drive head. The stakedown assembly includes a vertical tower that is rotatably mounte... | 07/10/2001 |
| 5954143 | Remote controlled all-terrain drill unit An apparatus adapted for maneuvering and drilling at least one hole at a site location is described as having an engine mounted in a supporting frame, at least part of the supporting frame including members that are adapted to contain a reservoir of fuel ... | 09/21/1999 |
| 4899832 | Modular well drilling apparatus and methods A highly automated well drilling apparatus that is transportable in modular units to a well site where the units are rapidly assembled into an integrated operational assembly. The apparatus includes a drilling unit and two raising units that are locked to... | 02/13/1990 |
| 4157878 | Connecting apparatus for hingedly and slidably connecting an attachment to self-propelled mine vehicle An attachment, such as an operator's compartment or a mine roof drilling and bolting assembly is positioned adjacent the body portion of a self-propelled mine vehicle with the bottom portion of the attachment in slidable contact with the mine floor. In on... | 06/12/1979 |
| 3952523 | Method of installing a screw-type anchor The method of securely placing a screw-type anchor in the earth without unduly disturbing the surrounding soil, including the step of enveloping the anchor's shank in a special tubular mandrel. The mandrel has a helical flight near its bottom end, with a ... | 04/27/1976 |
