Method of detecting defective portions of metallic tank having t

Details Method of detecting defective portions of metallic tank having t Method of detecting defective portions of metallic tank having t

1977-12-08

1979-11-13

Anderson, Bruce C.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250339, G01J 100

Patent

active

041744802

ABSTRACT:
Defective portions of a metallic tank storing hot hydrocarbon oil therein and having a thermally protective coating of polyurethane foam adhered onto the side wall thereof, are detected by determining a distribution of surface temperatures of the coating. Portions of the coating of relatively high temperatures correspond to defective portions of the coating which cause corrosion of the side wall of the tank, and in turn underlying corroded areas in the side wall.

REFERENCES:
patent: 3791194 (1974-02-01), Pontello
patent: 3933044 (1976-01-01), Loper et al.
patent: 4005289 (1977-01-01), Del Grande

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