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:
Jan. 27, 2009
Filed:
Jul. 27, 2005
Thomas Rossen, Lübeck, DE;
Karl-ludwig Gippert, Lübeck, DE;
Michael Heidschmidt, Lübeck, DE;
Jürgen Müller, Lübeck, DE;
Rainer Kunz, Lübeck, DE;
Thomas Rossen, Lübeck, DE;
Karl-Ludwig Gippert, Lübeck, DE;
Michael Heidschmidt, Lübeck, DE;
Jürgen Müller, Lübeck, DE;
Rainer Kunz, Lübeck, DE;
Dräger Medical AG & Co. KGaA, Lübeck, DE;
Abstract
An anesthetic evaporator with a pressure control circuit has a differential pressure pick-up () can be calibrated in a simple manner. A switchover device () is provided according to the present invention at a bypass gap (), which is designed to connect the gas inlet () directly with the gas outlet () via a first bypass line () and to bridge over the bypass gap () via a second bypass line () connected to a ventilation duct () in a first switching position. The gas flow from the gas inlet () to the gas outlet () is established via the bypass line () in a second switching position. The calibration of the differential pressure pick-up () with the pneumatic connections () is performed in the first switching position of the switchover means () via the ventilation duct (), which is open toward the ambient atmosphere.