Blasting method and device

Details Blasting method and device Blasting method and device

1977-03-21

1978-08-29

Pendegrass, Verlin R.

Ammunition and explosives

Igniting devices and systems

102 23, F42B 300, F42D 300

Patent

active

041095758

ABSTRACT:
Blasting devices, each comprising an explosive substance, a deflector, and a casing containing an incompressible fluid, the explosive substance, and the deflector are inserted into respective holes bored in a rock or the like at spaced apart positions, a tamper being thereafter stuffed in each hole, and the explosive substances in the holes are detonated simultaneously. A shock wave or blast wave is thus created in the incompressible fluid in each hole, and is deflected by the deflector in a direction along which the rock or the like is to be fractured. An improved construction of the blasting device for practicing the method is also provided.

REFERENCES:
patent: 431747 (1890-07-01), Kurtz
patent: 1738920 (1929-12-01), Ormsby
patent: 3618520 (1971-11-01), Hamasaki

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