Radiant energy – Invisible radiant energy responsive electric signalling – With means to inspect passive solid objects
Patent
1987-04-15
1989-08-15
Fields, Carolyn E.
Radiant energy
Invisible radiant energy responsive electric signalling
With means to inspect passive solid objects
378 59, 378 54, G01N 2304
Patent
active
048577367
ABSTRACT:
The present invention provides an accurate measurement of the waxy buildup in pipeline by injecting an X-ray opaque material into the pipeline, then X-raying the line at three or more points in order to get an average wax thickness.
REFERENCES:
patent: 2957987 (1960-10-01), Arnesen
patent: 2999932 (1961-09-01), Spooner
patent: 3108186 (1963-10-01), Flavel, Jr.
patent: 3582647 (1971-06-01), Fignet
Fields Carolyn E.
Hanig Richard
Shell Oil Company
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