Chemical cartridge for respirators
US4256698A · kind A · utility
3Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 25, 1980 |
| Grant date | Mar 17, 1981 |
| Priority date | — |
| Expiry date | Feb 25, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B21/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A chemical cartridge for giving off oxygen for use in respirators, comprises, a container having an oxygen-liberating chemical therein, with a spark plug engaged in the chemical and developing heat and oxygen when started to ignite and aid in the combustion of the chemical. A container of a shape to extend around at least the sides and one end of the spark plug is filled with water and it has an opening which is closed by a plug. The plug is made so that it will open during the burning of the spark plug and supply water to the chemical.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.