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Class Information
Number: 181/115
Name: Acoustics > Geophysical or subsurface exploration > Seismic wave generation > Bubble suppression or control
Description: Subject matter including means to minimize adverse effects arising from the production of bubbles by the means for producing seismic waves in a fluid medium.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8689935 Abating low-frequency noise using encapsulated gas bubbles Apr. 8, 2014
7974150 Methods and apparatus of source control for sequential firing of staggered air gun arrays in borehole seismic Jul. 5, 2011
7270214 Method and apparatus for reducing and extracting wing-tip vortex energy Sep. 18, 2007
6578405 Gas seep detection Jun. 17, 2003
6571906 Underwater sound mitigation system for explosive testing Jun. 3, 2003
6286612 Shutoff valve for marine acoustic generator Sep. 11, 2001
6089345 Elastic wave exploration tool for wells Jul. 18, 2000
6091668 Static marine seismic system and method Jul. 18, 2000
5646910 Pneumatic gun for rapid repetitive firing Jul. 8, 1997
5646909 Pneumatic gun for rapid repetitive acoustic firing Jul. 8, 1997
5592439 Self-centering dual shuttle air gun Jan. 7, 1997
5592440 Compact sleeve air gun Jan. 7, 1997
5572486 Seismic airgun arrangement Nov. 5, 1996
5469404 Method and apparatus for seismic exploration Nov. 21, 1995
5458123 System for monitoring patient location and data Oct. 17, 1995
5420829 Method and apparatus for modifying the recoil of a marine acoustic generator May. 30, 1995
5246595 Process for degassing a coupling liquid of a pressure wave generator apparatus employing coupling liquid by chemical route, coupling liquid thus treated and shock wave generator using such a c Sep. 21, 1993
4976333 Method for reshaping acoustical pressure pulses Dec. 11, 1990
4956822 Method and apparatus for seismic exploration Sep. 11, 1990
4949315 External bubble-suppression method and apparatus Aug. 14, 1990
4921068 Internal bubble-suppression method and apparatus May. 1, 1990
4875545 External bubble-suppression method and apparatus Oct. 24, 1989
4753316 Seismic source Jun. 28, 1988
4739858 Spectrally-shaped air gun arrays Apr. 26, 1988
4735281 Internal bubble-suppression method and apparatus Apr. 5, 1988
4727956 Method and apparatus for signal improvement in marine seismic exploration Mar. 1, 1988
4718045 Underwater seismic energy source Jan. 5, 1988
4697255 Implosion type energy source for seismic exploration Sep. 29, 1987
4646871 Gas-gun for acoustic well sounding Mar. 3, 1987
4632213 Seismic source system for use in water covered area Dec. 30, 1986
4632214 Seismic source for use underwater Dec. 30, 1986
4618024 Moving seismic source system for use in water-covered areas Oct. 21, 1986
4382486 Tuned air gun array May. 10, 1983
4327813 Generation of seismic sources May. 4, 1982
4303141 Liquid slug projector apparatus Dec. 1, 1981
4300654 Undersea implosion device Nov. 17, 1981
4246979 Internal sleeve air release control apparatus in seismic air gun Jan. 27, 1981
4230201 Air release control in seismic energy source air gun Oct. 28, 1980
4225009 Internal air release control apparatus air gun Sep. 30, 1980
4219097 External air release control in seismic air gun Aug. 26, 1980
4219098 Internal passive air release control apparatus in seismic air gun Aug. 26, 1980
4189026 Underwater generation of low frequency sound Feb. 19, 1980
4185714 Implosive acoustic generator Jan. 29, 1980
4180139 Fluid operated seismic generator Dec. 25, 1979
4170002 Seismic system using a combination of generically different sources Oct. 2, 1979
4163205 Acousto-optical device for removing bubble pulse from reflected sonar signal Jul. 31, 1979
4153134 Underwater seismic source May. 8, 1979
4108272 Rapid fire air gun Aug. 22, 1978
4053027 Use for a seismic energy pulse generator for generating and shaping a seismic energy pulse Oct. 11, 1977
4006794 Seismic pneumatic energy source with flap valves for attenuation of bubble pulse amplitude and reduction of period of bubble oscillation Feb. 8, 1977

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