Plasma arcjet tunnel segments and method of making same
US7509851B1 · kind B1 · utility
0Cited by
3References
20Claims
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Assignee
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Key dates
| Filing date | Oct 30, 2007 |
| Grant date | Mar 31, 2009 |
| Priority date | — |
| Expiry date | Oct 30, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M9/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A plasma heated arcjet wind tunnel is provided with tunnel segments in the arc-constrictor. The tunnel segments are fabricated of two concentric discs, an outer disc and an inner disc, with a groove formed in an outer edge of the inner disc. The two concentric discs which fit snugly into one another and are joined at their welded interface by a straight and angled butt joint formed between an inner edge of the outer disc and an outer edge of the inner disc. The straight and angled butt joints can be welded by electron beam welding, laser welding, or friction stir welding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.