Breathing apparatus
US7380551B2 · kind B2 · utility
21Cited by
103References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 3, 2004 |
| Grant date | Jun 3, 2008 |
| Priority date | — |
| Expiry date | Sep 3, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B7/10
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An improvement to 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 a sensor is included to determine the oxygen content of the breathing gas and the presence of contaminations in the atmosphere to control operation of the two systems 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.