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1 688 687

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A1

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IPC

(21) (22)

Application

4735130/25, 1989-07-24

(22)

Actual filing date

1989-07-24

(45)

Published

1994-07-15

(72)

Inventor

Lunev V.G.Popov L.N.Sokolov G.N.

PNEUMATIC SOURCE FOR SEISMIC-ACOUSTIC INVESTIGATIONS Russian patent published in 1994 - IPC

Abstract SU 1688687 A1

FIELD: seismic prospecting in water areas. SUBSTANCE: pneumatic source has body 1, guide 2, shut-off unit 3, cover 4, electric air-operated valve 5, bottom 6 with thrust rings to change volume of working chamber 27. Mentioned components form auxiliary space 11, controlling chamber 20, low-pressure chamber 21. With operation of electric air-operated valve 5 air is suddenly fed over initiation duct 28 under lower butt of shut-off unit 3 displacing it upwards. Acceleration continues up to moment of opening of windows 8 and separation of controlling chamber 20 and auxiliary space 11. Blowout of portion of compressed air is accompanied by generation of signal and after this shut-off unit returns into starting position. EFFECT: prolonged service life of source by reduced wear-out of mobile conjugate components. 3 dwg

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SU 1 688 687 A1

Authors

Lunev V.G.

Popov L.N.

Sokolov G.N.

Dates

1994-07-15—Published

1989-07-24—Filed

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