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:
Apr. 03, 1984
Filed:
Mar. 11, 1982
Jorg Winkler, Stockelsdorf, DE;
Hans Matthiessen, Gross Parin, DE;
Ernst Warncke, Lubeck, DE;
Adalbert Pasternack, Bad Schwartau, DE;
Abstract
A closed cycle respirator is disclosed which includes a respiration air cycle having a breathing bag and a carbon dioxide absorber with connecting lines between the breathing bag and absorber and to a junction adapted for use by the user of the equipment. A pressurized oxygen bottle is provided with a controllable valve for supplying oxygen to the cycle in case the oxygen drops below a selected value in the breathing bag. In case of failure of the controllable valve, a separate oxygen supply connection is provided to the breathing cycle with a valve which senses a reduction of pressure in the breathing cycle and opens the connection to the oxygen bottle for emergency supply of oxygen to the cycle.