Title: Device for emitting mechanical waves

Abstract: This invention concerns a device for emitting mechanical waves in an external medium. This device comprises an annular or axial combustion chamber, shut by a valve, and comprising means of introducing fuel and oxidant, and an ignition system; the valve is composed of a differential piston, one side of which forms a mobile wall of a chamber containing fluid under pressure, and part of the other side of which forms a mobile wall of the combustion chamber. This device is used mainly to generate compression waves for the purpose of seismic exploration.

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Inventors: Sayous, Leon (Pau, FR)

Application Number: 582241
Filing Date: 1975-05-30
Publication_date: 1976-09-21
Assignee: Societe Nationale des Petroles d'Aquitaine (Courbevoie, FR)
Primary Class(es): 181/118 181/117, 181/401, 181/402
Other Classes:
US Patent Ref:

3353623	Nov, 1967	Flatow et al.	181/401.
3429396	Feb, 1969	Jenner et al.	181/117.
3480102	Nov, 1969	Kilmer	181/117.
3746120	Jul, 1973	Kilmer	181/117.

Other Refs:
Primary Examiner: Sebastian, Leland A.
Assistant Examiner:
Attorney: Brisebois & Kruger