Patent · US Expired

Process and device for checking a hollow body section

US6161425A · kind A · utility

2Cited by

1References

7Claims

0Family size

Assignee

Mannesmann AG · DE

Inventors

Gerd Junker · Ratingen, DE
Gerhard Knauf · Duisburg, DE
Ronald Claus · Dresden, DE

Key dates

Filing date	Nov 16, 1998
Grant date	Dec 19, 2000
Priority date	—
Expiry date	Nov 16, 2018

Classification

Technology area (CPC G)Physics
CPC primaryG01N3/12
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a process for checking a hollow body section, wherein the section, after being filled with a fluid, is subjected to a bursting test to demonstrate its brittle fracture resistance. After the open ends of the section are closed, the required bursting pressure is applied by the dynamic movement toward each other of two elements that reach in a sealing manner through the open ends. The dynamic movement of the two elements is achieved by accelerating a weight toward one of the two elements such that the weight impacts the one of the two elements at an impact velocity, causing the dynamic movement.

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