Method of manufacturing dewars
US6772498B2 · kind B2 · utility
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14References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2003 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Apr 22, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49925
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved dewar design that accelerates the manufacturing process of a dewar. In a preferred embodiment, the dewar includes an evacuation port that may be larger in size by a factor of ten over the size of evacuation ports of conventional dewars. The oversized evacuation port, however, does not result in an increase in the overall size or profile of the dewar. The dewar is evacuated and hermetically sealed using an re-usable evacuation tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.