Combustion apparatus for generating repetitive explosions

Details Combustion apparatus for generating repetitive explosions Combustion apparatus for generating repetitive explosions

1974-10-16

1978-09-12

Purser, Ernest R.

Mining or in situ disintegration of hard material

Processes

Explosive

299 14, 299 37, E21C 2900

Patent

active

041133153

ABSTRACT:
Staged combustion apparatus is disclosed for generating repetitive explosions. The apparatus includes a first chamber in which a gas under pressure is ignited by an ignition source, such as a spark plug, and a second chamber in which gas under pressure is ignited by gas discharging from the first chamber. The second chamber includes a discharge outlet and a dump valve is provided responsive to the gas pressures in the two chambers for permitting the discharge of gas under pressure from the second chamber when it is ignited. The gas discharge, for example, may be conducted about the tooth of a ripper plow to aid in earth fracture.

REFERENCES:
patent: 3574404 (1971-04-01), Hogan
patent: 3600116 (1971-08-01), Clark, Jr. et al.
patent: 3619917 (1971-11-01), Fischer
patent: 3713496 (1973-01-01), Codlin

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