Drilling device

Boring or penetrating the earth – With signaling – indicating – testing or measuring

Reexamination Certificate

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Details

C175S050000

Reexamination Certificate

active

07093673

ABSTRACT:
Method of introducing instruments/measuring equipment/tools into formations (9) in the earth's crust or other solid materials, such as ice, by means of a drilling device (1), material being liberated by, for example, rotation of a drill bit (2), or by melting, for example by means of a heating element, the liberated material thereafter flowing, or being pumped, past/through the drilling device (1) and being deposited in the bore hole (18) above/behind the drilling device (1). A drilling device (1) for practising the method described above, comprising necessary components, for example a drill bit (2), a driving motor (4), and a steering/control component (7), the drilling device (1) being provided with a cable magazine (10) containing a cable (12), and possibly with an output feeder (11).

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DWPI Abstract, RU 2013514 Abstract, Electrothermal, rotary drilling tool-comprises cylindrical part of height exceeding that of parabolic working head, 1991.
DWPI Abstract, SU1620581, Electrically heated drilling bit—ensures ice penetration with line heater and normally closed contact pair plates, 1988.

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