US3356576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel sheathing failure detection in liquid cooled nuclear reactors
Assignee: United Kingdom Atomic Energy Authority
•
Filing: 1966-03-07
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Granted: 1967-12-05
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Expires: 1986-03-07
Abstract
No abstract record available.
Inventors
- 👤 Mcknight James Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:50
CPC Classifications
G; G21; G21C; G21C17/00; G21C17/02; G21C17/04; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A METHOD OF TESTING FOR THE OCCURRENCE OF FUEL SHEATHING FAILURE IN LIQUID COOLED NUCLEAR REACTOR, SAID METHOD COMPRISING THE STEPS OF PASSING COOLANT OVER AT LEAST ONE FUEL BEARING MEMBER IN THE REACTOR AND THEN THROUGH A TUBE DEFINING A FLOW PATH FOR COOLANT, IMPARTING TO COOLANT FLOWING THROUGH THE TUBE A ROTARY MOTION AROUND THE LONGITUDINAL AXIS OF THE TUBE SUCH THAT BUBBLES IN THE COOLANT ARE URGED CENTRIPETALLY TO OCCUPY A POSITION ABOUT THE LONGITUDINAL AXIS OF THE TUBE, RESTRAINING AXIAL MOVEMENT OF THE BUBBLES IN SAID POSITION BY PARTIAL OBSTRUCTIONS IN THE FLOW PATH, AND TESTING FOR PRESENCE OF BUBBLES IN SAID POSITION.
Claim 2
Independent Claim
107 words
A METHOD OF TESTING FOR THE OCCURRENCE OF FUEL SHEATHING FAILURE IN LIQUID COOLED NUCLEAR REACTOR, SAID METHOD COMPRISING THE STEPS OF PASSING COOLANT OVER AT LEAST ONE FUEL BEARING MEMBER IN THE REACTOR AND THEN THROUGH A TUBE DEFINING A FLOW PATH FOR COOLANT, IMPARTING TO COOLANT FLOWING THROUGH THE TUBE A ROTARY MOTION AROUND THE LONGITUDINAL AXIS OF THE TUBE SUCH THAT BUBBLES IN THE COOLANT ARE URGED CENTRIPETALLY TO OCCUPY A POSITION ABOUT THE LONGITUDINAL AXIS OF THE TUBE, RESTRAINING AXIAL MOVEMENT OF THE BUBBLES IN SAID POSITION BY PARTIAL OBSTRUCTIONS IN THE FLOW PATH, AND TESTING FOR PRESENCE OF BUBBLES IN SAID POSITION.
References Cited (Backward Citations)
US3070532A
Cited
US3234101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |