Patent US3647623A successfully refreshed from Google Patents.
US3647623A
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Fuel element for a nuclear reactor
Assignee: Westinghouse Electric Corp
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Filing: 1969-02-26
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Granted: 1972-03-07
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Expires: 1989-02-26
Abstract
Abstract A metallic clad fuel element for nuclear reactors which has a bellows-like member internally supported therein and communicably coupled with the environment of the fuel element so as to maintain an internal pressure substantially equal to the external or environmental pressure during burnup and load follow. The bellows-like member is preferably constructed of a material with a relatively high modulus of elasticity so that it may readily expand and contract to compensate for the amount of fission gas given off by the fuel during burnup.
Inventors
- 👤 Michael B L Hepps
- 👤 Harry M Ferrari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:08
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/02; G21C3/04; G21C3/16; G21C3/17; Y; Y02; Y02E; Y02E30/00; Y02E30/10; Y02E30/30
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |