Drilling apparatus and method for introducing a drilling...

Details Drilling apparatus and method for introducing a drilling... Drilling apparatus and method for introducing a drilling...

2007-06-12

2007-06-12

Gay, Jennifer H (Department: 3672)

Boring or penetrating the earth

With means to simultaneously feed and rotate tool from a...

C175S195000, C175S057000

Reexamination Certificate

active

10943934

ABSTRACT:
The invention relates to a drilling apparatus and a method for introducing a drilling element into the soil. The drilling element is rotatably and slidably supported on a mast, with a torque being applied through a rotary drive located on the mast. In order to support the torque an additional turning device is fixed to the mast, which can be engaged with the driven drilling element.

REFERENCES:
patent: 3892140 (1975-07-01), Fox et al.
patent: 4719978 (1988-01-01), Klemm
patent: 5062490 (1991-11-01), Rassieur
patent: 5549170 (1996-08-01), Barrow
patent: 2 421 714 (1974-12-01), None
patent: 35 44 086 (1987-06-01), None
patent: 195 29 554 (1997-02-01), None

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