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:
Nov. 01, 2011
Filed:
Nov. 08, 2007
Tilman Von Blumenthal, Lübeck, DE;
Judith Löser, Lübeck, DE;
Ralf Lorenzen, Lübeck, DE;
Bernhard Ludwig, Lübeck, DE;
Frank Oelgarth, Divonne les Bains, FR;
Tilman von Blumenthal, Lübeck, DE;
Judith Löser, Lübeck, DE;
Ralf Lorenzen, Lübeck, DE;
Bernhard Ludwig, Lübeck, DE;
Frank Oelgarth, Divonne les Bains, FR;
Dräger Medical GmbH, Lübeck, DE;
Abstract
A gas-mixing device for respirators can be used both in stationary operation and in mobile operation. The gas-mixing device has a storage tank (), into which compressed air and oxygen can be introduced by dispensing valves (). In addition, a blower (), which draws in gas from the environment (), is connected to the storage tank (). To dispense gas from the pressurized gas sources () by means of the dispensing valves (), a first operating pressure level is set in the storage tank (). When changing over to the blower operation, the operating pressure level is lowered to a pressure level adapted to the maximum respiration pressure.