Patent · US Expired

Respirator

US4233971A · kind A · utility

5Cited by

2References

5Claims

0Family size

Assignee

Auergesellschaft GmbH · DE

Inventors

Manfred Gronau · Berlin, DE
Werner Mascher · Berlin, DE
Klaus Pampuch · Berlin, DE

Key dates

Filing date	Mar 5, 1979
Grant date	Nov 18, 1980
Priority date	—
Expiry date	Mar 5, 1999

Classification

Technology area (CPC A)Human Necessities
CPC primaryA62B21/00
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A ring-shape connecting member is disposed in an opening in the bottom of a breathing bag, where it is encircled and tightly engaged by an elastic sleeve secured to the bag around its opening and projecting downwardly out of the bag. A chemical cartridge is provided with an upwardly extending ring-shape flange projecting up into the elastic sleeve in sealing engagement with it, and the top of the cartridge within said flange is provided with an opening communicating with the connecting member.

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