US3003941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear reactor
Assignee: Allis Chalmers Corp
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Filing: 1958-11-12
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Granted: 1961-10-10
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Expires: 1978-11-12
Abstract
No abstract record available.
Inventors
- 👤 Drolshagen Otto
- 👤 Roy E Manoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:32
CPC Classifications
G; G21; G21C; G21C1/00; G21C1/30; G21C1/04; G21C1/06; G21C1/14; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
IN A NUCLEAR REACTOR, A CORE OF FISSIONABLE MATERIAL, A GRAPHITE THERMAL COLUMN TO PROVIDE A SOURCE OF THERMAL NEUTRONS, LEAD GATES AND BORAL CURTAINS INTERPOSED BETWEEN SAID CORE AND THERMAL COLUMN AND HAVING RECESSES THEREIN DEFINING OPENINGS THERETHROUGH FOR THE PASSAGE OF NEUTRONS FROM THE CORE TO THE THERMAL COLUMN, SHUTTERS MOVABLE INTO AND OUT OF REGISTRY WITH THEIR RESPECTIVE OPENINGS, AND MEANS TO MOVE SAID SHUTTERS.
Claim 2
Dependent Claim
68 words
IN A NUCLEAR REACTOR, A CORE OF FISSIONABLE MATERIAL, A GRAPHITE THERMAL COLUMN TO PROVIDE A SOURCE OF THERMAL NEUTRONS, LEAD GATES AND BORAL CURTAINS INTERPOSED BETWEEN SAID CORE AND THERMAL COLUMN AND HAVING RECESSES THEREIN DEFINING OPENINGS THERETHROUGH FOR THE PASSAGE OF NEUTRONS FROM THE CORE TO THE THERMAL COLUMN, SHUTTERS MOVABLE INTO AND OUT OF REGISTRY WITH THEIR RESPECTIVE OPENINGS, AND MEANS TO MOVE SAID SHUTTERS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |