Radiant energy – Geological testing or irradiation
Patent
1977-11-04
1979-08-21
Smith, Alfred E.
Radiant energy
Geological testing or irradiation
250272, G01V 500, G01N 2320
Patent
active
041654609
ABSTRACT:
A coal-rock interface detector employing a radioactive source and radiation sensor wherein the source and sensor are separately and independently suspended and positioned against a mine surface of hydraulic pistons which are biased from an air cushioned source of pressurized hydraulic fluid.
REFERENCES:
patent: 3019338 (1962-01-01), Monaghan et al.
patent: 3723727 (1973-03-01), Wogman et al.
Crouch Charles E.
Frosch Robert A. Administrator of the National Aeronautics and Space
Jones Elborn W.
Rose Stephen D.
Howell Janice A.
Manning John R.
Porter George J.
Smith Alfred E.
Wofford, Jr. L. D.
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