Patent · US Expired

Method of joining two or more parts

US6355134B1 · kind B1 · utility

4Cited by

10References

12Claims

0Family size

Assignee

AGILENT TECHNOLOGIES, INC. · US

Inventors

Manfred Berndt · Waldbronn, DE
Werner Schomburg · Remchingen, DE
Zeno Rummler · Blankenloch, DE
Ralf-Peter Peters · Bensberg, DE
Mario Hempel · Braunschweig, DE

Key dates

Filing date	Jul 15, 1999
Grant date	Mar 12, 2002
Priority date	—
Expiry date	Jul 15, 2019

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C66/73921
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In a method for joining two or more solid parts, a foil is provided between the two parts, the foil is heated to an elevated temperature by means of a thermode such that it becomes soft, and then the foil is cooled down below the elevated temperature, thus providing a permanent connection. The method can be used for bonding a gas-permeable membrane to a housing such as to produce a liquid chromatography degasser. The bonding method ensures that no unwanted substances are released when liquid comes into contact with the bonding region.

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