Respirator
US4926855A · kind A · utility
18Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1987 |
| Grant date | May 22, 1990 |
| Priority date | — |
| Expiry date | Jan 29, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B17/04
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A rescue type breathing apparatus which includes a hood and a face mask incorporated inside the hood. During a first phase of the inhalation cycle a breathing gas is supplied to the face mask from the gas container through a bladder. After the bladder has been emptied breathing gas in a second phase of the inhalation cycle is supplied from the hood and the gas container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.