Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Reexamination Certificate
2006-05-12
2008-12-16
Pihulic, Dan (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
Reexamination Certificate
active
07466630
ABSTRACT:
A method for characterizing function of an air gun includes measuring, with respect to time, a parameter related to pressure in a charge chamber portion of the air gun. The measurements with respect to time are used to characterize the function of the air gun.
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Mark Simms, United Kingdom Search Report, Sep. 6, 2007.
Fagin Richard A.
PGS Geophysical AS
Pihulic Dan
Thigpen E. Eugene
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