Variable frequency vacuum actuated seismic energy source

Details Variable frequency vacuum actuated seismic energy source Variable frequency vacuum actuated seismic energy source

1981-11-27

1983-12-20

Wilbur, Maynard R.

Acoustics

Geophysical or subsurface exploration

Seismic wave generation

181114, 181401, G01V 1147

Patent

active

044211988

ABSTRACT:
A variable frequency seismic pulse is produced by releasing a weighted piston within a partially evacuated cylinder. The piston compresses residual air in the cylinder before striking a base plate held firmly in contact with the ground. Controlling the pressure of the gas remaining in the cylinder controls the frequency and amplitude of the seismic pulse applied to the ground. The seismic pulse can be applied at various angles from vertical from a thumper mounted on a vehicle or from a hand-held thumper.

REFERENCES:
patent: 2859628 (1958-11-01), Arko
patent: 2868176 (1959-01-01), Bennett
patent: 3189121 (1965-06-01), Vander Stoep
patent: 3349867 (1967-10-01), Mounce
patent: 3361226 (1968-01-01), Szasz
patent: 3363720 (1968-01-01), Mifsud et al.
patent: 3535874 (1968-12-01), Smith
patent: 3900677 (1975-08-01), Barber
patent: 3927693 (1975-12-01), Johnston
patent: 3980039 (1976-09-01), Henning
patent: 4114722 (1978-09-01), Weber et al.
patent: 4116300 (1978-09-01), Stone

Affiliated with

Also associated with

Rating

Variable frequency vacuum actuated seismic energy source does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable frequency vacuum actuated seismic energy source, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable frequency vacuum actuated seismic energy source will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-103349