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:
Jul. 22, 2003
Filed:
Jun. 29, 2001
Applicant:
Inventors:
Rudi Widt, Köln, DE;
Rudolf Flosbach, Wipperfurth, DE;
Assignee:
Inficon GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 3/20 ;
U.S. Cl.
CPC ...
G01M 3/20 ;
Abstract
A test leak unit ( ) includes a supply of test gas, preferably helium, and an element ( ) for determining leakage rates. The aim of the invention is to create a simple, robust and easily refilled test leak unit, especially for detecting packaging leaks. To this end, the test gas supply is stored under substantially atmospheric pressure in a resealable reservoir ( ) including a closing part ( ), such that when the reservoir ( ) is closed, a test gas-impermeable seal is developed between the closing part ( ) and the reservoir ( ), and the leakage rate-determining element ( ) forms part of the closing part ( ).