Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Patent
1990-08-14
1992-08-25
Steinberger, Brian S.
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
181120, H04R 102
Patent
active
051425092
ABSTRACT:
A sleeve for a seismic air gun exhaust chamber is disclosed. The sleeve prevents water from accumulating in the air gun exhaust chamber when the air gun is vertically positioned and provides a convenient method for regulating the volume of the air gun exhaust chamber, and thus the frequency of acoustic energy emitted by the gun. The sleeve is characterized by a false bottom which is connected to the main chamber by an orifice and passages.
REFERENCES:
patent: 3653460 (1972-04-01), Chelminski
patent: 4658387 (1987-04-01), Dolengowski et al.
patent: 4778027 (1988-10-01), Haugland
Drawing from Texan Instruments, MOD I Air Gun, Exploded View of MOD I Air Gun.
Casperson John R.
Exxon Production Research Company
Morgan Kelly A.
Steinberger Brian S.
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