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Class Information
Number: 181/116
Name: Acoustics > Geophysical or subsurface exploration > Seismic wave generation > Explosive
Description: Subject matter wherein the means for producing seismic waves includes means for utilizing the violent expansion of hot gases resulting from the sudden combustion of a material.










Sub-classes under this class:

Class Number Class Name Patents
181/117 Gas 48


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8307941 Seismic gun assembly for shooting into a bore hole Nov. 13, 2012
8104568 Seismic gun assembly for shooting into a bore hole Jan. 31, 2012
6776256 Method and apparatus for generating seismic waves Aug. 17, 2004
6705425 Regenerative combustion device Mar. 16, 2004
6704657 Method and apparatus for determining blaster detonation time and first arrival time of seismic wave Mar. 9, 2004
6701818 Method for seismic exploration of a remote site Mar. 9, 2004
6648097 Seismic methods having extended energy release Nov. 18, 2003
6571906 Underwater sound mitigation system for explosive testing Jun. 3, 2003
6419044 Energy source for use in seismic acquisitions Jul. 16, 2002
6408614 High-power pressure wave source Jun. 25, 2002
6366534 Underwater high energy acoustic communications device Apr. 2, 2002
6260657 Seismic pulse generator Jul. 17, 2001
5908365 Downhole triggering device Jun. 1, 1999
5907132 Apparatus and method for illuminating 3-D geologic targets with P and S wavefields generated by explosives that generate directionally controlled force vectors May. 25, 1999
5864517 Pulsed combustion acoustic wave generator Jan. 26, 1999
5811741 Apparatus for placing geophones beneath the surface of the earth Sep. 22, 1998
5343002 Disposable point with explosive charge for seismic exploration Aug. 30, 1994
5341343 Underwater explosive acoustic signature device Aug. 23, 1994
5339288 Underwater sound source with remote controlled actuator Aug. 16, 1994
5281775 Vibrating hole forming device for seismic exploration Jan. 25, 1994
5278359 Simple multishot downhole explosive tool Jan. 11, 1994
5273127 Air cushion vehicle ride control system Dec. 28, 1993
5181580 Cyclical variable aperture valve for air cushion vehicles Jan. 26, 1993
5175712 Underwater sound source with timed actuator Dec. 29, 1992
5125473 Speaker damper configuration Jun. 30, 1992
5022485 Method and apparatus for detonation of distributed charges Jun. 11, 1991
4976199 Blasting system and its method of control Dec. 11, 1990
4895218 Multishot downhole explosive device as a seismic source Jan. 23, 1990
4867266 Seismic energy source Sep. 19, 1989
4793435 Apparatus for generating multiple seismic signals in a wellbore Dec. 27, 1988
4725991 Method for controlling blasting operations Feb. 16, 1988
4699241 Method and apparatus for detonation of distributed charges Oct. 13, 1987
4691803 Projectile powered piston Sep. 8, 1987
4656944 Select fire well perforator system and method of operation Apr. 14, 1987
4513402 Earthquake simulator Apr. 23, 1985
4497044 Seismic wave generator Jan. 29, 1985
4418786 Bottom diaphragm for transporter for a seismic energy source Dec. 6, 1983
4359131 Method of generating a seismic signal employing a water piston Nov. 16, 1982
4354572 Portable seismic energy source Oct. 19, 1982
4334591 Transporter for low energy seismic source Jun. 15, 1982
4324310 Seismic apparatus Apr. 13, 1982
4313380 Distributed charge for seismic prospecting Feb. 2, 1982
4286520 Linear explosive charge with constant detonation velocity and synchronous booster charges Sep. 1, 1981
4284006 Linear explosive charge with constant detonation velocity and synchronous booster charges Aug. 18, 1981
4278025 Seismic explosive charge loader and anchor Jul. 14, 1981
4270626 Coupling means for horizontal vibrator Jun. 2, 1981
4223759 Low energy source for seismic operation Sep. 23, 1980
4219096 Submergible marine seismic source Aug. 26, 1980
4217571 Stutter seismic source Aug. 12, 1980
4177732 Explosive fuse-cord Dec. 11, 1979

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