US3595748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear reactor control device
Assignee: Westinghouse Electric Corp
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Filing: 1968-01-24
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Granted: 1971-07-27
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Expires: 1988-01-24
Abstract
Abstract A NECULEAR REACTOR IS DISCLOSED WHEREIN A PORTION OF ITS FUEL ASSEMBLIES HAVE PRIMARY OR SHUTDOWN NEUTRON ABSORBING CONTROL ELEMENTS COUPLED TO INCREMENTAL DRIVE MECHANISMS, AND A PORTION OF ITS FUEL ASEMBLIES HAVE ONE OR MORE INDIVIDUALLY MOVABLE AUXILIARY FINE FLUX TRIM RODS (FFT) COUPLED TO NEW AND IMPROVED TWO-POSITION MECHANISMS. THE TWO-POSITION MECHANISMS ARE ASSOCIATED WITH CURVED GUIDE CHANNELS IN SUCH A MANNER AS TO CONTROL THE POSITION OF INDIVIDUAL FFTG RODS ASSOCIATED WITH A PLURALITY OF FUEL ASSEMBLIES.
Inventors
- 👤 Erling Frisch
- 👤 Harry N Andrews
- 👤 Howard E Braun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:01
CPC Classifications
F; F15; F15B; F15B21/00; F15B21/08; G; G21; G21C; G21C19/00; G21C7/00; G21C7/06; G21C7/08; G21C7/12; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |