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:
Dec. 17, 1991
Filed:
Sep. 07, 1990
Applicant:
Inventor:
Adalbert Pasternack, Bad Schwartau, DE;
Assignee:
Dragerwerk AG, Lubeck, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ; A62B / ;
U.S. Cl.
CPC ...
12820418 ; 12820522 ; 12820513 ; 12820512 ; 12820524 ;
Abstract
The present invention pertains to a recirculating respirator for positive pressure operation, in which it is possible to switch off the elements generating the over pressure in case of excessively high oxygen consumption. A flow-measuring device is provided in the oxygen supply line, which is connected to a control unit. A warning device 36, and a switching device, for switching off the over pressure is also provided.