Tool driving or impacting – Advance causing or controlling means
Patent
1992-12-30
1994-07-19
Rada, Rinaldi
Tool driving or impacting
Advance causing or controlling means
173DIG3, E21C 500
Patent
active
053300122
ABSTRACT:
The present invention is for an improved feed shell for an air-flushing, rock-drilling system. The improvement extends the life of the feed shell and, in particular, the feed guide of a feed shell on which gibs for directing a rock drill ride. The system, as improved, provides a first nozzle which directs fluid onto a first guide surface of the feed guide and second nozzle which directs fluid onto a second guide surface of the feed guide. The nozzles can be mounted in either manifolds or, alternatively, in the gibs which support and guide the drill on the feed guide.
REFERENCES:
patent: 1408176 (1922-02-01), H'Doubler
patent: 1502383 (1924-07-01), Guerrini et al.
patent: 1604957 (1926-11-01), Bayles
patent: 1868650 (1932-07-01), Wilhelm
patent: 2365681 (1944-12-01), Gartin
patent: 3565185 (1971-02-01), Ekwall
patent: 4314611 (1982-02-01), Willis
Cannon Industries, Inc.
Rada Rinaldi
Weins Michael J.
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