Patent · US Expired

Thermoelement for measurement of temperature in vacuum furnaces

US4717787A · kind A · utility

4Cited by

3References

4Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Willi Freppon · Alzenau, DE
Paul Heilmann · Maintal, DE
Theo van Heijst · Nuenen, NL

Key dates

Filing date	Aug 4, 1986
Grant date	Jan 5, 1988
Priority date	—
Expiry date	Aug 4, 2006

Classification

Technology area (CPC G)Physics
CPC primaryG01K1/08
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A thermoelement which rapidly determines temperature and which is protected from disturbing signals during the measurement of temperature in a vacuum furnace composed of a thermocouple which is protectively sheathed by a transparent quartz glass portective tubing pipe which has wrapped around it a continuous conductive metal element which is grounded.

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