Patent · US Expired

Vacuum furnace for heat treatment of metallic workpieces

US4869470A · kind A · utility

1Cited by

1References

5Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Paul Heilmann · Maintal, DE
Fritz Kalbfleisch · Zöblitz, DE
Friedrich Preisser · Heitersheim, DE
Rolf Schuster

Key dates

Filing date	Oct 21, 1988
Grant date	Sep 26, 1989
Priority date	—
Expiry date	Oct 21, 2008

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF27B2005/167
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A vacuum furnace for heat treatment of metallic workpieces wherein the heat conductors are formed as conduits fitted with bore holes and connected by electrical insulators to coolant gas distributor.

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