US3331746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular fuel element for a nuclear reactor
Assignee: Studsvik Energiteknik AB
•
Filing: 1965-07-16
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Granted: 1967-07-18
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Expires: 1985-07-16
Abstract
No abstract record available.
Inventors
- 👤 Margen Peter Heinrich Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:37
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/02; G21C3/04; G21C3/16; G21C1/00; G21C1/04; G21C1/06; G21C1/08; G21C1/082; G21C11/00; G21C11/08; G21C15/00; G21C15/02; G21C15/04; G21C15/06; G21C19/00; G21C19/02; G21C19/12; G21C19/20; G21C3/20; G21C3/28; G21C3/30; G21C3/36; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
IN A NUCLEAR REACTOR COMPRISING A NUCLES FUEL ELEMENT CONTAINING AT LEAST ONE WATER COOLANT CHANNEL AND AT LEAST ONE STEM COLLANT CHANNEL, A NUCLEAR FUEL BODY BETWEEN SAID COLLANT CHANNELS, MEANS FOR PASSING WATER THROUGH SAID WATER COOLANT CHANNEL IN SUCH HEAT EXCHANGING RELATIONSHIP WITH THE NUCLEAR FUEL BODY AS TO PRODUCE STEAM, AND MEANS FOR PASSING SAID STEAM THROUGH SAID STEAM COOLANT CHANNEL IN SUCH HEAT EXCHANGING RELATIONSHIP WITH THE NUCLEAR FUEL BODY AS TO PRODUCE SUPERHEATED STEAM, THE IMPROVEMENT WHICH CONSISTS IN PROVIDING A HEAT-INSULATING LAYER ON AT LEAST PART OF A SURFACE OF THE SIDE OF THE NUCLEAR FUEL BODY DEFINING A COOLANT CHANNEL IN WHICH THE COOLANT HAS A LOWER COOLING CAPACITY, SO AS TO DIRECT A MAJOR PART OF THE HEAT WHICH IS PRODUCED IN SAID NUCLEAR FUEL BODY BEHIND SAID PART OF SAID SURFACE TOWARDS A COOLANT CHANNEL IN WHICH THE COOLANT HAS A HIGHER COOLING CAPACITY.
Claim 2
Dependent Claim
154 words
IN A NUCLEAR REACTOR COMPRISING A NUCLES FUEL ELEMENT CONTAINING AT LEAST ONE WATER COOLANT CHANNEL AND AT LEAST ONE STEM COLLANT CHANNEL, A NUCLEAR FUEL BODY BETWEEN SAID COLLANT CHANNELS, MEANS FOR PASSING WATER THROUGH SAID WATER COOLANT CHANNEL IN SUCH HEAT EXCHANGING RELATIONSHIP WITH THE NUCLEAR FUEL BODY AS TO PRODUCE STEAM, AND MEANS FOR PASSING SAID STEAM THROUGH SAID STEAM COOLANT CHANNEL IN SUCH HEAT EXCHANGING RELATIONSHIP WITH THE NUCLEAR FUEL BODY AS TO PRODUCE SUPERHEATED STEAM, THE IMPROVEMENT WHICH CONSISTS IN PROVIDING A HEAT-INSULATING LAYER ON AT LEAST PART OF A SURFACE OF THE SIDE OF THE NUCLEAR FUEL BODY DEFINING A COOLANT CHANNEL IN WHICH THE COOLANT HAS A LOWER COOLING CAPACITY, SO AS TO DIRECT A MAJOR PART OF THE HEAT WHICH IS PRODUCED IN SAID NUCLEAR FUEL BODY BEHIND SAID PART OF SAID SURFACE TOWARDS A COOLANT CHANNEL IN WHICH THE COOLANT HAS A HIGHER COOLING CAPACITY.
References Cited (Backward Citations)
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Cited
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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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |