Support device for in-line pipe inspection tool

Details Support device for in-line pipe inspection tool Support device for in-line pipe inspection tool

1993-06-17

1994-11-01

Le, Mark T.

Railways

Tubular way

Internal service device

B61B 1300

Patent

active

053599390

ABSTRACT:
A device for the in-line inspection of pipe. The device is spring-loaded to provide an adequate pressure between the supporting brushes of the device and the interior pipe wall for effective magnetic inspection with pipe of various internal diameters. A biasing spring is used in association with the spring-loaded device to extend and provide a supplemental force when the device passes from a relatively small to a relatively large diameter pipe to rapidly and effectively position a magnetizing section of the device within the larger diameter pipe.

REFERENCES:
patent: 3495546 (1970-02-01), Brown et al.

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