Protective clothing
US4352353A · kind A · utility
41Cited by
4References
47Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1980 |
| Grant date | Oct 5, 1982 |
| Priority date | — |
| Expiry date | Jan 31, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B18/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A respirator comprising a hood and visor adapted to protect a wearer against an undesirable substance and so closely to fit and envelop the wearer's head as to be susceptible of being worn underneath a helmet, the visor being formed to accommodate an oronasal mask and the respirator having purge gas supply means for maintaining a positive pressure within the respirator and for washing over the visor in visual regions thereof as well as breathing gas supply means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.