Boring or penetrating the earth – Natural vibration characteristic of an element of boring...
Reexamination Certificate
2010-12-13
2011-12-13
Neuder, William P (Department: 3672)
Boring or penetrating the earth
Natural vibration characteristic of an element of boring...
C175S171000, C405S237000, C405S243000
Reexamination Certificate
active
08074740
ABSTRACT:
There is provided a method for drilling a cased hole and installing a geothermal transfer apparatus. A sonic drilling apparatus is positioned at a desired location. The sonic drilling apparatus includes a rotating and vibrating apparatus for rotating and vibrating a drill string into the ground. A retrievable drill bit is operatively connected to the drill string. The cased hole is drilled to a desired depth by rotating and vibrating the drill string into the ground. The retrievable drill bit is retrieved from the cased hole following the drilling of the cased hole to the desired depth. A geothermal transfer apparatus is lowered into the cased hole following the retrieval of the retrievable drill bit. Grouting material may be discharged into the cased hole before or after the drill string is removed from the ground.
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Berenato & White LLC
Neuder William P
LandOfFree
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