Apparatus and method for controlled delivery of a gas
US6607696B1 · kind B1 · utility
30Cited by
86References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2000 |
| Grant date | Aug 19, 2003 |
| Priority date | — |
| Expiry date | Sep 12, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/04
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Disclosed are apparatus for delivery of a gas, e.g., carbon dioxide and/or chlorine dioxide, and methods of its use and manufacture. The apparatus includes an envelope, and a sachet within the envelope that contains reactant, which generates a gas in the presence of an initiating agent, e.g., water. The envelope allows release of the gas from the envelope. In another embodiment, the apparatus includes an envelope and a partition that separates two reactants within the envelope. The envelope allows an initiating agent into the envelope and release of the gas generated by the reactants in the presence of the initiating agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.