Drilling apparatus

Details Drilling apparatus Drilling apparatus

1992-05-05

1994-04-19

Britts, Ramon S.

Boring or penetrating the earth

Natural vibration characteristic of an element of boring...

175340, 175424, E21B 724

Patent

active

053037847

ABSTRACT:
The drilling apparatus according to the invention contains a body (1) to which rock-destroying organs--rollers (2) are attached. A subassembly for generating hydrodynamic waves is arranged in the body (1). This subassembly is designed in the form of a turbulence chamber (3) with tangentially arranged entry channels (4) and with a conically tapering outlet channel (5) the frontal surface of which is radially rounded off.

REFERENCES:
patent: 3105560 (1963-10-01), Zublin
patent: 3415330 (1968-12-01), Bouyoucos
patent: 3416487 (1968-12-01), Greene
patent: 3441094 (1969-04-01), Galle et al.
patent: 3532174 (1970-10-01), Diamantides
patent: 3610347 (1971-10-01), Diamantides
patent: 4475603 (1984-10-01), Hayatdavoudi
patent: 4512420 (1985-04-01), Hayatdavoudi et al.
patent: 4687066 (1990-04-01), Evans

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