Rotating pipeline inspection apparatus

Details Rotating pipeline inspection apparatus Rotating pipeline inspection apparatus

1975-09-19

1978-02-07

Corcoran, Robert J.

Electricity: measuring and testing

Magnetic

Magnetic sensor within material

324240, G01R 3312

Patent

active

040728943

ABSTRACT:
Inspection apparatus adapted to be propelled through a pipeline. Means are provided to establish a circumferentially directed flux field in wall of pipe, and longitudinally extending flexible fins or flaps of elastomeric material curve outwardly from apparatus to resiliently hold flux leakage detection means against wall of pipe. Means responsive to axial movement of apparatus imparts helical movement of apparatus. Apparatus is readily adapted to inspect pipelines of different sizes.

REFERENCES:
patent: 2315133 (1943-03-01), Riney et al.
patent: 2940302 (1960-06-01), Scherbatskoy
patent: 3328681 (1967-06-01), Wood
patent: 3449662 (1969-06-01), Wood

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