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. 12, 2021
Filed:
Jan. 17, 2018
Applicant:
Inficon Gmbh, Köln, DE;
Inventor:
Daniel Wetzig, Cologne, DE;
Assignee:
INFICON GmbH, Cologne, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01M 3/32 (2006.01);
U.S. Cl.
CPC ...
G01M 3/3281 (2013.01);
Abstract
The invention relates to a film chamberwhich has a film chamber wall for testing the sealing tightness of a gas-filled test specimen, which film chamber wall defines a chamber volumefor holding the test specimenand has a first vacuum connectionfor evacuating the chamber volumeby means of a first vacuum pumpconnected to the first vacuum connection, wherein at least a portion of the film chamber wall has a flexible film, characterized in that the filmhas two layersarranged adjacent to each other which surround an evacuable film interspace