Patent US481118A successfully refreshed from Google Patents.
Patent US3305451A successfully refreshed from Google Patents.
US3305451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear reactors
Assignee: Babcock International Ltd
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Filing: 1965-07-01
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Granted: 1967-02-21
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Expires: 1985-07-01
Abstract
No abstract record available.
Inventors
- 👤 Peter A Taylor
- 👤 Ronald J Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:08
CPC Classifications
G; G21; G21C; G21C1/00; G21C1/32; G21C1/326; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A NUCLEAR REACTOR COMPRISING A PRESSURE VESSEL, A CORE ARRANGED WITHIN SAID PRESSURE VESSEL, A PLENUM CHAMBER ARRANGED TO RECEIVE COOLANT FLOWING FROM THE CORE, A PLURALITY OF HEAT EXHCANGERS DISPOSED BETWEEN THE CORE AND THE PRESSURE VESSEL WALL, EACH HEAT EXCHANGER COMPRISING A PRIMARY FLOW PATH FOR FLUID TO BE HEATED AND A SECONDARY FLOW PATH FOR THE HEATING FLUID, EACH HEAT EXCHANGER BEING PROVIDED WITH MEANS WHEREBY CORE COOLANT AS HEATING FLUID MAY FLOW FROM SAID PLENUM CHAMBER THROUGH THE SECONDARY FLOW PATH, VALVE MEANS PROVIDED WITH EACH HEAT EXCHANGR ADJUSTABLE BETWEEN AN OPEN AND CLOSE POSITION TO CONTROL THE FLOW OF CORE COOLANT THROUGH THE SECONDARY FLOW PATH, AND COOLANT
Claim 2
Dependent Claim
113 words
A NUCLEAR REACTOR COMPRISING A PRESSURE VESSEL, A CORE ARRANGED WITHIN SAID PRESSURE VESSEL, A PLENUM CHAMBER ARRANGED TO RECEIVE COOLANT FLOWING FROM THE CORE, A PLURALITY OF HEAT EXHCANGERS DISPOSED BETWEEN THE CORE AND THE PRESSURE VESSEL WALL, EACH HEAT EXCHANGER COMPRISING A PRIMARY FLOW PATH FOR FLUID TO BE HEATED AND A SECONDARY FLOW PATH FOR THE HEATING FLUID, EACH HEAT EXCHANGER BEING PROVIDED WITH MEANS WHEREBY CORE COOLANT AS HEATING FLUID MAY FLOW FROM SAID PLENUM CHAMBER THROUGH THE SECONDARY FLOW PATH, VALVE MEANS PROVIDED WITH EACH HEAT EXCHANGR ADJUSTABLE BETWEEN AN OPEN AND CLOSE POSITION TO CONTROL THE FLOW OF CORE COOLANT THROUGH THE SECONDARY FLOW PATH, AND COOLANT
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |