Rock drill

Details Rock drill Rock drill

1975-11-12

1981-05-05

Pate, III, William F.

Tool driving or impacting

Work cleansing

Cleansing fluid passage through hammer head

173134, E21B 102

Patent

active

042653215

ABSTRACT:
A percussive rock drill and more particularly a percussive rock drill having improved means for passing a flow of flushing fluid therethrough.

REFERENCES:
patent: 3881557 (1975-05-01), Gendron
patent: 3884511 (1975-05-01), Hermanson
patent: 3903972 (1975-09-01), Bouyoucos
patent: 3908767 (1975-09-01), Klemm
patent: 3939943 (1976-02-01), Salmi

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