Method and apparatus for the application of volatile substances conveyed in carrier gas
US6224930A · kind A · utility
15Cited by
7References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1996 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | Dec 20, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2202/21
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a method and apparatus for treating a perishable material particularly foodstuffs, pharmaceuticals and the like to extend the shelf life thereof including placing a material to be treated in a vessel capable of evacuation, evacuating the vessel and contacting the material with a volatile substance entrained in a carrier gas, the substance being capable of physical and/or chemical alteration of said material. Preferably the volatile substance is an antimocrobial volatile substance, e.g. a natural food acid such as acetic or carbonic acid, and the carrier gas is nitrogen or carbon dioxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.