Portable rotary earth drilling apparatus

Details Portable rotary earth drilling apparatus Portable rotary earth drilling apparatus

1985-02-04

1986-04-29

Novosad, Stephen J.

Boring or penetrating the earth

With tool drive prime mover or above-ground mechanical...

175202, 175203, 175315, 173 29, E21B 302, E21C 100

Patent

active

045850801

ABSTRACT:
For drilling holes in remote locations there is provided drilling apparatus consisting of hand-transportable modules which include a base assembly (12), a derrick (13) removably mounted on the base assembly and including an elongated tubular member (51) and a carriage (52) moved along the tubular member by a block and tackle (81), and a hydraulic cylinder (97). The carriage has a detachable support portion (55) that supports a drill assembly (14) on one side of the derrick for drilling and an anchor assembly (15) on the other side of the derrick for anchoring the base assembly to the earth's surface. A hydrostatic drive system (17) selectively actuates the carriage, drill and anchor.

REFERENCES:
patent: 313204 (1885-03-01), Grooms
patent: 2521895 (1950-09-01), Bunting
patent: 4158520 (1979-06-01), Prebenson
patent: 4192393 (1980-03-01), Womack et al.
patent: 4476940 (1984-10-01), Reichert et al.

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