Powered air purifying respirator system and breathing apparatus
US7543584B2 · kind B2 · utility
29Cited by
80References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 29, 2003 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Sep 29, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B7/10
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A combination of an SCBA system for providing bottled air to a user and a PAPR system for purifying ambient air for use by a user wherein the two systems are used alternatingly depending on the contaminated condition of the ambient air and the oxygen content of the ambient air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.