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6988855 |
Installation of support piers for a structure comprises the steps of positioning a hollow tube in a soil matrix followed by removal of soil from the hollow core, filling the core with an aggregate, subsequent raising and lowering of the ...
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6814167 |
A boring device for producing a bore with a casing tube has a linkage, a boring tool, which can be fixed to the lower end of the linkage, a mounting frame for mounting on the casing tube, a drive and a connecting device, which is used fo...
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6702040 |
A telescopic drilling method includes the steps of drilling an outer bore through a surface, inserting a hollow outer conduit into the outer bore, and at least partially inserting a first hollow inner conduit through the outer conduit. N...
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6688815 |
A method and mechanical apparatus for installation of support pier for structure comprises positioning a hollow tube apparatus in a soil matrix wherein the hollow tube apparatus has a hollow core and is susceptible to lateral and longitu...
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6425713 |
A method and apparatus for installation of a support pier for a structure comprises positioning a hollow tube apparatus in a soil matrix wherein the hollow tube apparatus has a hollow core and is susceptible to lateral and longitudinal m...
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6371203 |
A method of creating a wellbore in an underground formation comprising drilling a borehole in the underground formation using a drilling tubular, capable of being expanded, to which a downhole motor driving a drill bit has been connected...
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6106200 |
In a process for drilling, in particular rotary percussion or percussion drilling, and lining holes in the ground or rocks, a hole is percussion and/or rotation drilled by a cutter mounted on boring rods and a lining is formed by a jacke...
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5694716 |
A root feeding device for dispersing plant food or other substances into the soil. The root feeding device (10) includes a reservoir (12) for being implanted in soil and for receiving the plant food or other substances to be dispersed in...
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5542481 |
An assembly for locking the drive point at the forward end of an elongated sample tube includes a tapered drive point presenting a threaded chamber, a bolt having a threaded stem, a collar disposed about the stem and a locking member dis...
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5339911 |
Process and apparatus for detecting leaks in, cathodically protecting, determining the effectiveness of such cathodic protection, and/or remediating fluid leaked from an aboveground storage tank. At least one substantially horizontal bor...
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5186263 |
A device for obtaining soil samples beneath the surface of the ground. A sample tube is provided with a removable piston tip blocking the forward opening of the sample tube. Rearward movement of the piston tip is blocked by a removable p...
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5015124 |
An apparatus for directing the forward movement of a rod as it is moved through a loose medium has the versatility either to direct or not direct such movement. The apparatus has a directing member that is disabled in a first position wh...
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4750571 |
A screen placement apparatus and system wherein the apparatus includes a motor for providing rotational torque to an auger received within a ground screen and a disposable cutting tip having a cutting diameter equal to or greater than th...
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4574241 |
A marine pipeline surveying apparatus useful for locating buried pipelines includes a barge having a work deck with a dolly mounted on the work deck for movement on the deck upon a provided track. A slot in the barge can be provided so t...
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4557409 |
The present invention is a double-headed hammer slidingly encompassing a ground rod driving shaft having a single anvil affixed thereto which can be selectively engaged by either hammer. The driving shaft has a recess in each end to rece...
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4530190 |
This invention relates to an improved self-anchoring fence post characterized by an anchor member in the form of a rigid blade substantially bisected by a vertically-disposed groove for use in initially detachably clamping same to a driv...
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3958648 |
Improved sealing means in rock drilling equipment of the kind comprising casing sections positioned between the drilling unit and the cutter head and housing the drill rod sections. A combined seal consisting of a metal part and a resili...
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3916564 |
Disclosed is a device which may be positioned in the soil to supply water, food or medication to the root system of growing plants. The device includes a tubular housing closely surrounding a removable rod member having a lower pointed e...
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3894589 |
A pin is engaged in a tubular sleeve and both the sleeve and the pin are driven into the ground with the pin protruding beneath the sleeve. A stop is applied on top of the sleeve and the pin is removed and a pole is then inserted into th...
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3744578 |
Apparatus is disclosed herein that is carried on a mobile transporter and which includes an upright frame laterally cantilevered from the bed of the transporter for supporting a vertically movable weight having an impacting ram for forma...
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3548069 |
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3369507 |
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3194328 |
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2918258 |
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2283650 |
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1979599 |
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1969251 |
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1906706 |
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1880218 |
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1866943 |
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1862339 |
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1839153 |
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1570404 |
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1465664 |
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1391344 |
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RE25060 |
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1210160 |
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1147791 |
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1052809 |
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1049151 |
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1048470 |
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1048304 |
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1002250 |
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0986819 |
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0975487 |
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0958534 |
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0955729 |
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0869336 |
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0863016 |
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0790910 |
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