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6736225 |
The present disclosure provides a coring guide for converting a mine roof bolter into apparatus suitable for guiding a coring rod, or drill, into a mine roof, as well as a method for obtaining a geological core from the mine roof using t...
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6289999 |
Flow control devices and associated control methods are described for use with hydraulic tools, such as those in a drill string. The described flow control device is typically incorporated into a drill string and is selectively operable ...
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6263985 |
A double-head drilling machine is disclosed, which by changing over or converting small component units can cooperate with drill or drill pipes of different diameters. To this end, drive carriages (16) operating on drills or drill pipes,...
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5921329 |
The invention features an assembly for use with a drilling rig having a mast and a first torque guide section mounted to the mast. The first torque guide section has an end and a coupler mounted near the end. The assembly includes a seco...
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5810101 |
A digger from a unit for digging utility pole holes is encased in an elongated box. The box has an attachment thereon for attachment to the carrying arm of a backhoe in place of the backhoe bucket. A 90° attachment provides versatility....
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5058688 |
A convertible drill apparatus for applying force to a probe capable of operating in either a vibratory drilling mode wherein the apparatus is adapted to drive the probe into the material to be drilled or a rotary drilling mode wherein th...
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4998590 |
An apparatus is provided that is mountable upon preferably a skidsteer tractor, through a forklift truck or similar wheeled vehicle could be employed. The apparatus can be lowered into a trench on one side of a street or sidewalk and use...
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4872518 |
A conversion apparatus for use in combination with a chain saw is set forth wherein a housing includes a rotatable shaft for attachment of a left-hand helical flight ice auger wherein the shaft includes a plurality of bearings secured wi...
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4485570 |
A drilling machine includes a coupling means (19) for removably coupling the drilling machine (1) to the bucket of an excavator with the aid of gripping arms (20, 21). Between the drilling machine and coupling means there is a rubber mem...
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4317493 |
An adapter is provided for positioning a kelly drive bushing of a surface drilling assembly in spaced relationship to an associated rotary table. The adapter permits the wireline of an electronic steering assembly to pass through the cen...
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4296821 |
An improved drilling rig (10) and conversion apparatus for drilling rigs is disclosed. The rig includes a percussion assembly (32) rotatably mounted to a ram (30) above the ground in which drilling is to be made. The rig (10) includes a ...
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4244431 |
Apparatus is disclosed for drilling a pilot hole and subsequently enlarging the pilot hole in earth formation. A dual concentric pipe string is used for circulating air downwardly through the outer pipe via a cross-over sub, through a pi...
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3986570 |
Disclosed herein is a rock bit having a quick change connection for use with an auger drilling machine. The quick change connection comprises a female connection extending upwardly from the body of a conventional rock bit. The connection...
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3870370 |
The present invention relates to non-rolling or fixed cutter assemblies and supports for such assemblies for use on tunneling machines, raise drilling machines and other types of earth boring equipment. In particular the invention relate...
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3833074 |
Device for taking cores of the ground formations at different levels of a well, adapted to be operated successively as a drilling apparatus and as a coring apparatus and comprising remotely controlled means for passing from drilling cond...
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3747696 |
A bit attached to a tool string is used for drilling a hole from the ground surface into or through a subterranean deposit of granular ore. Within the tool string is a passage through which fluid flows to the bit while drilling. Valve me...
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3179186 |
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3087559 |
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3042373 |
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2709072 |
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2705613 |
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2698169 |
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2655006 |
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2623739 |
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2606472 |
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2579533 |
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2542038 |
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2389512 |
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2299881 |
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2251013 |
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2234264 |
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2180589 |
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2171985 |
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2140919 |
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2061218 |
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1996121 |
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1934329 |
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1848039 |
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1847136 |
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1832634 |
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1806625 |
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1776779 |
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1542720 |
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1532311 |
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1451794 |
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1392703 |
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1360193 |
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1271617 |
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1166011 |
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1077620 |
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