Apparatus for measuring internal corrosion in pipelines

Details Apparatus for measuring internal corrosion in pipelines Apparatus for measuring internal corrosion in pipelines

1977-10-13

1978-11-07

Stearns, Richard R.

Geometrical instruments

Area integrators

Electrical

33178F, 33DIG13, G01B 712, G01B 734

Patent

active

041238478

ABSTRACT:
An apparatus for measuring the internal corrosion in a pipeline consisting of a pig having a circumferential array of spring-loaded probes for measuring both the average diameter of the pipe and the depth of individual pits. The probes are disposed in pairs with one probe in the form of a stylus having a pointed end for measuring pits, and the other probe having a shoe-shaped end for measuring the average pipe diameter.

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patent: 2497990 (1950-02-01), Huber et al.
patent: 2607128 (1952-08-01), Newhall
patent: 2854758 (1958-10-01), Owen
patent: 2896332 (1959-07-01), Elston et al.
patent: 3024651 (1962-03-01), McGlasson
patent: 3882606 (1975-05-01), Kaenel et al.
patent: 3898741 (1975-08-01), Casey

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