Apparatus having push/pull actuated boom for generating waves in

Details Apparatus having push/pull actuated boom for generating waves in Apparatus having push/pull actuated boom for generating waves in

1980-10-20

1983-06-28

Wilbur, Maynard R.

Acoustics

Geophysical or subsurface exploration

Seismic wave generation

181114, 181401, G01V 1147

Patent

active

043900771

ABSTRACT:
A mobile generator for producing waves for seismic exploration. A hammer, mounted on an elongated boom, is dropped to strike an anvil embedded in the ground to create a ground wave. The boom is pivotal between positions selected according to the nature of the wave to be created. A pair of hydraulic piston actuators move the boom between its selected positions. A tensioning device is connected to the cable which drops the hammer in such a manner as to prevent the hammer from rebounding after an impact.

REFERENCES:
patent: 2659583 (1953-11-01), Dorkins
patent: 2659584 (1953-11-01), Dorkins
patent: 3393763 (1968-07-01), Sundt
patent: 4108270 (1978-08-01), Mifsud

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