US3084251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detection of burst jackets in nuclear reactors cooled by a plurality of gaseous streams
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1959-04-20
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Granted: 1963-04-02
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Expires: 1979-04-20
Abstract
No abstract record available.
Inventors
- 👤 Goupil Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:54
CPC Classifications
G; G21; G21C; G21C17/00; G21C17/02; G21C17/04; G21C17/044; G21C17/045; G01; G01T; G01T7/00; G01T7/02; G01T7/06; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
DEVICE FOR DETECTING LEAKS IN THE JACKETS SURROUNDING THE SLUGS OF FUEL ELEMENTS IN A NUCLEAR REACTOR, COOLED BY AT LEAST ONE PLURALITY OF GASEOUS STREAMS CIRCULATING THROUGH SAID REACTOR IN HEAT-EXCHANGE RELATIONSHIP WITH SAID FUEL ELEMENTS, COMPRISING, FOR EACH SAID PLURALITY, A DETECTING UNIT INCLUDING: A COLLECTING CONDUIT; A SINGLE NUCLEAR RADIATION DETECTOR ARRANGED TO COOPERATE WITH SAID COLLECTING CONDUIT; FOR EACH GASEOUS STREAM OF SAID PLURALITY, A PICKING-UP TUBE FOR PICKING UP PERMANENTLY A SAMPLE OF SAID GASEOUS STREAM, A DECAY CHAMBER CONNECTED TO SAID PICKING-UP TUBE, AN ELECTRODE DISPOSED IN SAID CHAMBER AND NORMALLY NEGATIVELY BIASED TO COLLECT THE POSITIVE RADIOACTIVE IONS PRESENT IN SAID CHAMBER, AND A CHANNEL FOR CONNECTING SAID CHAMBER TO SAID COLLECTING CONDUIT; AND MEANS FOR SUCCESSIVELY AND CYCLICALLY GROUNDING EACH SAID ELECTRODE.
Claim 2
Dependent Claim
130 words
DEVICE FOR DETECTING LEAKS IN THE JACKETS SURROUNDING THE SLUGS OF FUEL ELEMENTS IN A NUCLEAR REACTOR, COOLED BY AT LEAST ONE PLURALITY OF GASEOUS STREAMS CIRCULATING THROUGH SAID REACTOR IN HEAT-EXCHANGE RELATIONSHIP WITH SAID FUEL ELEMENTS, COMPRISING, FOR EACH SAID PLURALITY, A DETECTING UNIT INCLUDING: A COLLECTING CONDUIT; A SINGLE NUCLEAR RADIATION DETECTOR ARRANGED TO COOPERATE WITH SAID COLLECTING CONDUIT; FOR EACH GASEOUS STREAM OF SAID PLURALITY, A PICKING-UP TUBE FOR PICKING UP PERMANENTLY A SAMPLE OF SAID GASEOUS STREAM, A DECAY CHAMBER CONNECTED TO SAID PICKING-UP TUBE, AN ELECTRODE DISPOSED IN SAID CHAMBER AND NORMALLY NEGATIVELY BIASED TO COLLECT THE POSITIVE RADIOACTIVE IONS PRESENT IN SAID CHAMBER, AND A CHANNEL FOR CONNECTING SAID CHAMBER TO SAID COLLECTING CONDUIT; AND MEANS FOR SUCCESSIVELY AND CYCLICALLY GROUNDING EACH SAID ELECTRODE.
References Cited (Backward Citations)
US2823179A
Cited
US2751505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |