Equipment for protecting personnel from contamination
US4741332A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 1985 |
| Grant date | May 3, 1988 |
| Priority date | — |
| Expiry date | Sep 19, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B7/12
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A protective breathing equipment for a crew member of an aircraft comprises a demand regulator supplied with pressurized oxygen and with dilution air taken from the living space of the crew. The regulator is connected to a breathing mask for the crew member. A protective hood supplied with filtered ventilation air is provided for location over the head of the crew member. The regulator has a housing containing the regulating mechanisms and an intake for dilution air and is surrounded by a case defining a protective space about the housing. The space is fed with filtered air under an overpressure of the same order as that which prevails in the hood.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.