Patent · US Expired

Device for gripping specimens

US4603588A · kind A · utility

8Cited by

5References

4Claims

0Family size

Assignee

Krupp Koppers GmbH · DE

Inventors

Hans Niermann · Essen, DE
Klaus Kohnen · Mülheim, DE
Joachim Jorde · Essen, DE

Key dates

Filing date	Jul 20, 1984
Grant date	Aug 5, 1986
Priority date	—
Expiry date	Jul 20, 2004

Classification

Technology area (CPC G)Physics
CPC primaryG01N3/16
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A device for gripping a specimen for applying to the same tensile or torsional strain includes two plates spaced from each other and a tubular spacer extended between the two plates and accommodating a specimen. The specimen is attached to the plates by respective nuts. One end of the specimen extended outwardly from the respective plate and nut is formed by a threaded pin, on which a pulling device for applying tensile stress onto the specimen, is set. The other end of the specimen has a square portion to which a tap wrench is applied, which, with the aid of two bolts positioned on one of the plates, applies torsional strains to the specimen.

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