Device for the panoramic radiography of weldings in metal piping

Details Device for the panoramic radiography of weldings in metal piping Device for the panoramic radiography of weldings in metal piping

1974-03-25

1976-04-06

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

With means to inspect passive solid objects

G01N 2300

Patent

active

039492273

ABSTRACT:
A self-propelled vehicular radiography device for traveling within a pipeline includes a drive system, having a sensing means responsive to a radiation source on the exterior of the pipeline. The outside source positions a panoramic radiography source carried on the vehicle adjacent the weld to be inspected. Upon removal of the outside source a programmed radiography sequence is commenced. A pendulum steering means is utilized to maintain the device at the bottom of the pipeline.

REFERENCES:
patent: 2235928 (1941-03-01), Hardinge
patent: 3087058 (1963-04-01), Arvanetakis et al.
patent: 3191713 (1965-06-01), Green
patent: 3492477 (1970-01-01), Arnesen
patent: 3547040 (1970-12-01), Baran
patent: 3691385 (1972-09-01), Ketchbaw et al.

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