Patent · US Expired

Method and apparatus for testing pipes

US4411152A · kind A · utility

0Cited by

2References

18Claims

0Family size

Assignee

Estel Hoesch Werke Aktiengesellschaft · DE

Inventor

Werner Roll · Merkendorf, DE

Key dates

Filing date	Jul 28, 1981
Grant date	Oct 25, 1983
Priority date	—
Expiry date	Jul 28, 2001

Classification

Technology area (CPC G)Physics
CPC primaryG01M3/2853
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method and an apparatus for testing the tightness of a threaded connection between an oilfield pipe and a tapped connector. An annular space along the threaded connection is sealed with a test head, and only the threaded connection is thus subjected to internal hydraulic pressure via this connection.

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