Cryostat with serviceable refrigerator
US4277949A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1979 |
| Grant date | Jul 14, 1981 |
| Priority date | — |
| Expiry date | Jun 22, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/897
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A cryostat including a source of refrigeration disposed within an evacuated chamber containing a reservoir of liquified cryogen wherein refrigeration is directed to heat stations disposed in the access means to the reservoir to intercept heat leak into said reservoir and to recondense cryogen boil-off from said reservoir. Thermal convective couplings are used to cool the heat stations and to minimize heat leakage in the event the refrigeration source is disabled. Cryogen boil-off is condensed in an apparatus utilizing low thermal conductive conduits to direct the vapors to a refrigeration zone and return the condensed cryogen to the reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.