Patent US1881915A successfully refreshed from Google Patents.
US3218236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear reactors
Assignee: Anglo Belge Vulcain SA Soc
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Filing: 1962-05-21
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Granted: 1965-11-16
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Expires: 1982-05-21
Abstract
No abstract record available.
Inventors
- 👤 Tollet Louis Henri Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:13
CPC Classifications
G; G21; G21C; G21C7/00; G21C7/06; G21C7/22; G21C7/08; G21C7/10; G21C7/11; G21C7/26; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A NUCLEAR REACTOR COMPRISING A CORE; A CHANNEL DEFINING A MODERATOR SPACE EXTENDING THROUGH SAID CORE; A FLUID MODERATOR IN SAID CHANNEL; A PAIR OF ELONGATED RECIPROCABLE MODERATOR ELEMENTS OF DIFFERENT MODERATING CHARACTERISTICS THAN THOSE OF SAID FLUID MODERATOR EXTENDING THROUGHOUT SAID CHANNEL, EACH OF SAID RECIPROCABLE MODERATOR ELEMENTS BEING LONGER THAN SAID CHANNEL BY A GIVEN DISTANCE, SAID ELEMENTS VARYING UNIFORMLY AND SIMILARLY IN CROSS-SECTIONAL AREA ALONG THEIR LENGTH, AND EACH VARYING IN THE OPPOSITE LONGITUDINAL DIRECTION FROM THE OTHER; MEANS FOR SIMULTANEOUSLY MOVING SAID RECIPROCABLE MODERATOR ELEMENTS IN OPPOSITE DIRECTIONS OVER SUBSTANTIALLY EQUAL DISTANCES BUT NOT MORE THAN SAID GIVEN DISTANCE.
Claim 2
Dependent Claim
103 words
A NUCLEAR REACTOR COMPRISING A CORE; A CHANNEL DEFINING A MODERATOR SPACE EXTENDING THROUGH SAID CORE; A FLUID MODERATOR IN SAID CHANNEL; A PAIR OF ELONGATED RECIPROCABLE MODERATOR ELEMENTS OF DIFFERENT MODERATING CHARACTERISTICS THAN THOSE OF SAID FLUID MODERATOR EXTENDING THROUGHOUT SAID CHANNEL, EACH OF SAID RECIPROCABLE MODERATOR ELEMENTS BEING LONGER THAN SAID CHANNEL BY A GIVEN DISTANCE, SAID ELEMENTS VARYING UNIFORMLY AND SIMILARLY IN CROSS-SECTIONAL AREA ALONG THEIR LENGTH, AND EACH VARYING IN THE OPPOSITE LONGITUDINAL DIRECTION FROM THE OTHER; MEANS FOR SIMULTANEOUSLY MOVING SAID RECIPROCABLE MODERATOR ELEMENTS IN OPPOSITE DIRECTIONS OVER SUBSTANTIALLY EQUAL DISTANCES BUT NOT MORE THAN SAID GIVEN DISTANCE.
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |