Incompressible fluid type rock breaker

Details Incompressible fluid type rock breaker Incompressible fluid type rock breaker

1979-10-12

1981-05-12

Purser, Ernest R.

Mining or in situ disintegration of hard material

Expansible breaking-down devices

102333, 166177, 299 16, E21C 3712

Patent

active

042668271

ABSTRACT:
A rock breaker comprising a tool insertable in a hole in a rock and fed through a supply line with an incompressible liquid to maintain a column of the liquid in the hole, and means to apply to the liquid a shock means sufficiently high to fracture the rock, the tool comprising a hollow stem having an expansible collet and a resilient sealing ring and mechanical means to expand the collet and ring.

REFERENCES:
patent: 1503420 (1924-07-01), Hutton
patent: 1582273 (1926-04-01), Joy
patent: 1710486 (1929-04-01), Morgan
patent: 2211243 (1940-08-01), Meyer
patent: 4146094 (1979-03-01), Benedum et al.

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