Method and apparatus for establishing a controlled atmosphere in the compartments of a vessel for conserving fresh vegetables
US5249428A · kind A · utility
21Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1992 |
| Grant date | Oct 5, 1993 |
| Priority date | — |
| Expiry date | Jun 22, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/227
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The different compartments of the preserving vessel are sequentially supplied with a controlled atmosphere by means of a first permeator providing a controlled atmosphere with an oxygen content of about 2% for the step of loading the compartment, then by means of an another separator providing a controlled atmosphere with an oxygen content which does not exceed 1% for a phase of extended conservation. The separators are typically of the type with a membrane and are supplied through a group of common compression, and the oxygen contents of the gases which are provided are controlled by means of flow limiters located downstream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.