Device for generating acoustic shear waves in the earth

Details Device for generating acoustic shear waves in the earth Device for generating acoustic shear waves in the earth

1983-07-19

1986-01-14

Moskowitz, Nelson

Acoustics

Geophysical or subsurface exploration

Seismic wave generation

181121, 181401, 173128, 173139, F16H 3300, G01V 1147

Patent

active

045640831

ABSTRACT:
The improved device for generating acoustic shear waves in the earth comprises a target member adapted to be coupled with the earth and provided with two lateral striking surfaces on which impinges a hammer pivotably mounted on a platform; the target member is connected through damping means to a cage supporting the platform, the hammer and its actuation means, said cage being displaceable with respect to the frame of a carrying vehicle between a position of contact with the earth of the target member and a lifted position thereof, the striking surfaces being inner walls of the target member.

REFERENCES:
patent: 1395895 (1921-11-01), Bellony
patent: 2568613 (1951-09-01), Daso
patent: 2740488 (1956-04-01), Heaps
patent: 2740489 (1956-04-01), White et al.
patent: 4050540 (1977-09-01), Cholet et al.
patent: 4118994 (1978-10-01), Layotte et al.
patent: 4291780 (1981-09-01), Fulkerson

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