Rock drill

Details Rock drill Rock drill

1977-08-15

1979-11-13

Pate, III, William

Tool driving or impacting

Work cleansing

Cleansing fluid passage through hammer head

92181P, 173 80, 173134, E21C 710

Patent

active

041740106

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 et al.
patent: 3908767 (1975-09-01), Klemn
patent: 3939943 (1976-02-01), Salmi

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