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. 07, 2014
Filed:
Feb. 10, 2010
Randolf Rolff, Kerpen-Horrem, DE;
Randolf Rolff, Kerpen-Horrem, DE;
Inficon GmbH, Cologne, DE;
Abstract
In order to functionally test a leak detector () that comprises a partial pressure sensor (), a testing device () having a variable volume () is connected to the leak detector. Said testing device can be a syringe. By changing the volume (), the partial pressure of the test gas contained in the ambient air is changed. A test is carried out to check whether the leak detector () indicates the change. According to the invention, a vacuum pumping device having mechanical vacuum pumps is not required. The method is suitable for testing vacuum systems that contain a vacuum pumping device that is used in the leak test to generate a required vacuum. The service technician can perform the functional test of the leak detector () separately from the system and the vacuum pumping device.