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:
May. 06, 2014
Filed:
Jun. 27, 2011
Applicant:
Tilman Von Blumenthal, Lübeck, DE;
Inventor:
Tilman von Blumenthal, Lübeck, DE;
Assignee:
Dräger Safety AG & Co. KGaA, Lübeck, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/75 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for controlling the delivery of a quantity of gas to be measured through a test gas tube () with a pump (), a sensor system for pressure and flow measurement () and a control and regulating unit (). A common mode offset of a differential pressure sensor (), determined in a calibration process, is taken into account in the process for operating the gas sampling device to increase the accuracy of a gas volume being delivered with pump () from the measuring environment ().