Marine gas exploder

Details Marine gas exploder Marine gas exploder

1975-10-06

1977-04-12

Moskowitz, Nelson

Acoustics

Geophysical or subsurface exploration

Seismic wave generation

181110, 181116, 340 12SD, 340 17R, G01V 138, H04B 1300, G01V 102

Patent

active

040169529

ABSTRACT:
A pair of movable pistons are separated within an enclosed, submerged cylinder by an expansible combustion chamber. Piston rods extend from these pistons through the opposite ends of the cylinder. A pair of dish-shaped, circular plates are carried on the respective extremities of these two rods so that their convex surfaces face inwardly toward the ends of the cylinder in spaced relation. Expansion of an explosive gas mixture within the combustion chamber drives the pistons apart so as to accelerate the plates through the water, producing cavitation bubbles at their convex surfaces. Collapse of these bubbles combines efficiently to produce a single energetic acoustic pulse adapted for seismic prospecting.

REFERENCES:
patent: 3277437 (1966-10-01), Bouyoucos
patent: 3406778 (1968-10-01), Barry et al.
patent: 3545563 (1970-12-01), Cholet
patent: 3741333 (1973-06-01), Moniz et al.
patent: 3919684 (1975-11-01), Reed
patent: 3952833 (1976-04-01), Reed et al.
patent: R26748 (1969-12-01), Schempf

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