Mat for use with rock breaking tool

Details Mat for use with rock breaking tool Mat for use with rock breaking tool

1987-05-28

1989-05-16

Massie, Jerome W.

Ammunition and explosives

Blasting

Mat or deflector

299 13, F42D 304, F42D 500

Patent

active

048299006

ABSTRACT:
The invention relates to a rock breaking tool having a barrel insertable into a pre-drilled, water-filled hole of the rock. The rock breaking tool utilizes a firing chamber to discharge a cartridge into the barrel. A blast absorbing mat is located over the tool to retain the tool in position in the hole during discharge. The invention also relates to the method of using the rock breaking tool.

REFERENCES:
patent: 1247567 (1917-11-01), O'Brien
patent: 2558924 (1951-07-01), Blake
patent: 2926605 (1960-03-01), Hammel et al.
patent: 4148375 (1979-04-01), Dowler et al.
patent: 4449754 (1984-05-01), Orlov et al.

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