Patent · US Expired

Breathing bag for closed cycle respirator

US4459981A · kind A · utility

10Cited by

3References

9Claims

0Family size

Assignee

Auergesellschaft GmbH · DE

Inventors

Werner Mascher · Berlin, DE
Stefan Zloczysti · Berlin, DE
Bernd Woicke · Berlin, DE
Klaus Haertle · Berlin, DE

Key dates

Filing date	May 20, 1982
Grant date	Jul 17, 1984
Priority date	—
Expiry date	May 20, 2002

Classification

Technology area (CPC A)Human Necessities
CPC primaryA62B7/08
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A closed cycle respirator includes a breathing bag, the bottom of which is in communication with a canister containing a chemical that binds carbon dioxide and water vapor and liberates oxygen. Inside the breathing bag there is a distributor that guides the regenerated respiratory air flowing up from the canister laterally in the direction of the breathing bag's side walls but keeps that air largely away from the side of the bag that lies against the chest of the wearer. The reason for directing the air through the bag in this manner is to reduce the temperature of the air before it is inhaled again.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.