Active/passive thermal control system utilizing liquid nitrogen
US10602748B1 · kind B1 · utility
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20Claims
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Key dates
| Filing date | Feb 22, 2019 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Feb 22, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23V2002/00
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
An active/passive freezer system includes the capability to both actively cool a payload bay and passively maintain close to that temperature for extended periods of time; a freezer unit with a payload bay that can rapidly reduce its internal temperature; a thermal battery; a heat exchanger where liquid Nitrogen flows through; insulation that significantly reduces heat gain from external sources; and the capability to have separate units for cooling the payload bay and maintaining the temperature within the payload bay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.