Drilling machine

Details Drilling machine Drilling machine

1975-09-08

1977-06-14

Purser, Ernest R.

Boring or penetrating the earth

With above-ground means for handling drilling fluid or cutting

Fluid or cuttings directing or receiving means engaging bore...

173 33, 175212, E21C 702, E21C 712

Patent

active

040291600

ABSTRACT:
A drilling machine for drilling floors or walls having a frame in which a drilling rod is displaced by a screw member. A container on the frame is placed around the drilling rod to fasten the frame to the floor or wall, to cool the drill, and to collect the drilling debris.

REFERENCES:
patent: 2145939 (1939-02-01), Markley
patent: 2151205 (1939-03-01), Hawn
patent: 3033298 (1962-05-01), Johnson
patent: 3351143 (1967-11-01), Seibold et al.
patent: 3456738 (1969-07-01), Harry
patent: 3499641 (1970-03-01), Peterson
patent: 3550701 (1970-12-01), Holly
patent: 3610349 (1971-10-01), Dempsey

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