Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Patent
1992-10-16
1994-01-25
Eldred, J. Woodrow
Acoustics
Geophysical or subsurface exploration
Seismic wave generation
102313, 175 19, 175 22, 173 49, G01V 106
Patent
active
052817750
ABSTRACT:
A vibrating hole forming device for seismic exploration in which a vertically elongated mounting pipe with attached rack gear is powered vertically by a hydraulically driven pinion gear which will mechanically push the pipe downwardly into the earth's surface. A vibrating mechanism imparts vibration to the downward force exerted by the pinion gear and rack gear. Vibration is imparted to the pipe automatically when hydraulic pressure required to operate the pinion gear reaches a predetermined pressure such as when the point on the lower end of the pipe encounters a predetermined resistance to further downward movement. This enables a lightweight unit to impart a constant downward force and a vibration force when needed to enable the device to penetrate through sands or extremely dense subsurface terrain thereby eliminating the necessity of providing a heavy weight vehicle such as is required when conventional hole forming devices are used on which the device is mounted.
REFERENCES:
patent: 3106258 (1963-10-01), Muller
patent: 3242999 (1966-03-01), Garner
patent: 3394766 (1968-07-01), Lebelle
patent: 3752242 (1973-08-01), Gremillion
patent: 3920083 (1975-11-01), Makita
patent: 3939771 (1976-02-01), McReynolds
patent: 4471669 (1984-09-01), Seaberg
patent: 4553443 (1985-11-01), Rossfelder et al.
patent: 4819740 (1989-04-01), Warrington
Eldred J. Woodrow
Gremillion Ernie J.
Gremillion Hazel T.
Gremillion Richard A.
Gremillion Steven M.
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