Air-regulating freshness-preserving storage device
US11150007B2 · kind B2 · utility
1Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2017 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Aug 20, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2317/041
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An air-regulating freshness-preserving storage device comprises a container having a first storage space defined therein; and an oxygen removal device configured to remove a part or all of oxygen in air in the first storage space, so as to obtain the air rich in nitrogen, low in oxygen, and favorable for food preservation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.