Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent
1992-11-03
1994-08-30
Eldred, J. Woodrow
Acoustics
Geophysical or subsurface exploration
Seismic wave generation
181106, 102313, 102319, G01V 106
Patent
active
053430026
ABSTRACT:
A disposable point detachably mounted on the lower end of a vertically movable hole forming elongated member with the point having an explosive charge mounted therein in order for the disposable point and explosive charge to remain in the bottom of a hole formed by the elongated member and point when they are forced into a subsurface formation which is to be seismically explored with the elongated member then being retracted.
REFERENCES:
patent: 3242999 (1966-03-01), Garner
patent: 3394766 (1968-07-01), Lebelle
patent: 3920083 (1975-11-01), Makita
patent: 4278025 (1981-07-01), McReynolds
patent: 4471669 (1984-09-01), Seaberg
patent: 4546703 (1985-10-01), Thompson
patent: 4553443 (1985-11-01), Rossfelder et al.
patent: 4819740 (1989-04-01), Warrington
Eldred J. Woodrow
Gremillion Ernest J.
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