Patent · US Expired

Device for the vacuum-tight connecting of two bodies of different materials

US6412821B1 · kind B1 · utility

0Cited by

10References

16Claims

0Family size

Assignee

Unaxis Balzers Aktiengesellschaft · LI

Inventors

Winfried Schulmann · Kleinostheim, DE
Helmut Kaiser · Wolfratshausen, DE
Udo Wenske · Bruchköbel, DE

Key dates

Filing date	Oct 13, 1998
Grant date	Jul 2, 2002
Priority date	—
Expiry date	Oct 13, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S285/911
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A device for connecting two bodies, especially a quartz body and a metallic body, which assures with few and simply formed components a high sealing ability at high temperature differences and at very low pressures and makes possible an easy assembly and disassembly. The device for the vacuum-tight connecting of two bodies of different materials, each of which has an essentially tubular end section (20, 30) and in the connected state of which the tubular end section (30) of the first body surrounds at least partially the end section (20) of the second body, includes an intermediate conduit (13) for intermediate suction removal of gases and is formed between the tubular end sections (20, 30) of the bodies with two seals (100, 150) which seal off the intermediate conduit (130).

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