Patent · US Expired

Film strip positioning for X-ray testing of pipes

US4311905A · kind A · utility

2Cited by

2References

9Claims

0Family size

Assignees

Mannesmann AG · DE
Rich. Seifert & Co. GmbH & Co. KG · DE

Inventors

Karl Ries · Mülheim, DE
Kurt Hannoschock · Sonsbeck, DE
Krsto-Marijan Rozic · Düsseldorf, DE
Gunter Basler · Ahrensburg, DE
Harald Sperl · Großhansdorf, DE
Kurt Weinschenk · Schenefeld, DE

Key dates

Filing date	Jul 31, 1978
Grant date	Jan 19, 1982
Priority date	—
Expiry date	Jul 31, 1998

Classification

Technology area (CPC G)Physics
CPC primaryG01N23/18
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An apparatus for X-ray testing of pipes following ultrasonic testing includes a reversible roller track for telescoping a pipe upon a cantilever arm which can be moved up and down on a stand and carrying an endless belt with resilient U-shaped holders for supporting film strips to be moved into the pipe and adjacent to suspected defects. Reversal of the belt drive permits removal of the exposed film strips as the pipe is moved out.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.