The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 12, 2002
Filed:
Jul. 15, 1999
Manfred Berndt, Waldbronn, DE;
Werner Karl Schomburg, Pfinztal, DE;
Zeno Rummler, Eggenstein-Leopeoldshafen, DE;
Ralf-Peter Peters, Bergisch-Gladbach, DE;
Mario Hempel, Dortmund, DE;
Agilent Technologies, Inc., Loveland, CO (US);
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.