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:
Oct. 18, 2005
Filed:
Jul. 06, 2000
Rudi Widt, Cologne, DE;
Thomas Abelen, Cologne, DE;
Rudi Widt, Cologne, DE;
Thomas Abelen, Cologne, DE;
Leybold Vakuum GmbH, Cologne, DE;
Abstract
The invention relates to a chamber for the detection of leaks on foils (). Said chamber comprises two frames () which are connected together in an articulated manner, foils () which are mounted on said frames, a test chamber () composed of the foils, a seal () arranged between the frames and at least one bore hole (), preferably several bore holes, in at least one of the two frames (), which can be connected to the inlet of a vacuum pump (). In order to improve the chamber's closing features, said chamber comprises an edge zone () wherein a vacuum can be created independently of the test chamber () and into which said bore holes () open out.