Device for emitting acoustic waves in a liquid medium by implosi

Details Device for emitting acoustic waves in a liquid medium by implosi Device for emitting acoustic waves in a liquid medium by implosi

1979-09-18

1981-10-13

Moskowitz, Nelson

Acoustics

Geophysical or subsurface exploration

Seismic wave generation

367146, 137102, G01V 138

Patent

active

042943280

ABSTRACT:
The device includes two movable members interconnected at their periphery by a flexible membrane defining therewith a tight enclosure of variable volume, a piston slidable in a cylinder integral with one of the two movable members and hydraulically actuated, to move the members apart from each other, a second cylinder separated in two compartments by an inner valve and controlling the actuation of the piston in response to the pressure of the water feeding said second cylinder, two apertures intermittently freed by the valve for releasing the piston and at least one aperture for the discharge of the water from the tight enclosure to the external water body when the piston release allows the two movable members to be urged toward each other, thereby producing an implosion which generates a strong sonic wave.

REFERENCES:
patent: Re26748 (1969-12-01), Schempf
patent: 3792425 (1974-02-01), Magneville et al.
patent: 3833087 (1974-09-01), Cholet
patent: 3850082 (1974-11-01), Nussbaumer
patent: 3997022 (1976-12-01), Cholet
patent: 4041970 (1977-08-01), Peters
patent: 4114515 (1978-09-01), Pauliukonis
patent: 4196788 (1980-04-01), Sclard
patent: 4203501 (1980-05-01), Cholet et al.

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