Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding
Patent
1988-11-09
1990-05-22
Tarcza, Thomas H.
Communications, electrical: acoustic wave systems and devices
Echo systems
Distance or direction finding
367 16, 367 19, G01V 138
Patent
active
049282620
ABSTRACT:
A marine seismic streamer having a plurality of seismic recovery units spaced along the length thereof. Each unit includes an inflation flotation device that will deploy when the streamer sinks to a trigger depth which is continuously adjusted in response to the actual operating conditions at the time.
REFERENCES:
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patent: 3654649 (1972-04-01), Richardson
patent: 3673556 (1972-06-01), Biggs
patent: 3794965 (1974-02-01), Charske
patent: 4541079 (1985-09-01), Thigpin
patent: 4555779 (1985-11-01), Roberts
patent: 4823325 (1989-04-01), Cole, Jr.
Neeley Walter P.
Ritter Sammie F.
Hager Jr. George W.
McKillop Alexander J.
Mobil Oil Corporation
Pihulic Daniel T.
Speciale Charles J.
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