Communications: electrical – Selective – Having indication or alarm
Patent
1973-04-25
1977-11-22
Tudor, Harold
Communications: electrical
Selective
Having indication or alarm
181116, 340 7R, H04B 1300
Patent
active
040598195
ABSTRACT:
A method and apparatus for seismic prospecting in a body of water which comprises trailing a gun adapted to initiate explosively-operated charges at a sufficient depth below the water's surface to allow the creation in the body of water of high-pressure waves, and detecting the pressure waves with a detector assembly including a housing having a flexible, sound-transmitting wall defining a chamber, an incompressible liquid completely filling the chamber, and a detector probe completely immersed in the incompressible liquid.
REFERENCES:
patent: 3178681 (1965-03-01), Horsman et al.
patent: 3187300 (1965-06-01), Brate
patent: 3328752 (1967-06-01), Sims
patent: 3351900 (1967-11-01), Yamamoto
patent: 3432000 (1969-03-01), Ongkiehong
patent: 3471827 (1969-10-01), Chelminski
patent: 3592286 (1971-07-01), Johnson
patent: 3768069 (1973-10-01), Abbagnaro
Breston Michael P.
Hercules Incorporated
Tudor Harold
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