US3357409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertical tube module once-through steam generator
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1965-09-30
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Granted: 1967-12-12
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Expires: 1985-09-30
Abstract
No abstract record available.
Inventors
- 👤 Williamson Malcolm Richard
- 👤 Chamberlain Michael Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:37
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/02; F22B1/18; F22B1/1823
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
STEAM GENERATOR COMPRISING A CLUSTER OF ONCETHROUGH TUBES THE EXTERNAL SURFACES OF WHICH ARE EXPOSED TO A HEATING FLUID AND INCLUDING AN UPPER HEADER AND A LOWER LADDER, SAID LOWER HEADER INCLUDING A FIRST CHAMBER AND A SECOND CHAMBER, MEANS INCLUDING AT LEAST ONE OF SAID TUBES FOR FEEDING WATER TO THE SAID FIRST CHAMBER, A LEAST SOME OF SAID TUBES OF SAID CLUSTER BEING EVAPORATOR TUBES EXTENDING FROM SAID FIRST CHAMBER TO SAID UPPER HEADER WHEREIN WATER EVAPORATES AS IT PASSES UPWARDLY THROUGH SAID EVAPORATOR TUBES FROM SAID FIRST CHAMBER TO SAID UPPER HEADER, AND AT LEAST SOME OF SAID TUBES OF SAID CLUSTER BEING SUPERHEATER TUBES EXTENDING FROM SAID UPPER HEADER TO SAID SECOND CHAMBER WHEREIN THE WATER EVAPORATED IN THE SAID EVAPORATING TUBES IN SUPERHEATED
Claim 2
Dependent Claim
128 words
STEAM GENERATOR COMPRISING A CLUSTER OF ONCETHROUGH TUBES THE EXTERNAL SURFACES OF WHICH ARE EXPOSED TO A HEATING FLUID AND INCLUDING AN UPPER HEADER AND A LOWER LADDER, SAID LOWER HEADER INCLUDING A FIRST CHAMBER AND A SECOND CHAMBER, MEANS INCLUDING AT LEAST ONE OF SAID TUBES FOR FEEDING WATER TO THE SAID FIRST CHAMBER, A LEAST SOME OF SAID TUBES OF SAID CLUSTER BEING EVAPORATOR TUBES EXTENDING FROM SAID FIRST CHAMBER TO SAID UPPER HEADER WHEREIN WATER EVAPORATES AS IT PASSES UPWARDLY THROUGH SAID EVAPORATOR TUBES FROM SAID FIRST CHAMBER TO SAID UPPER HEADER, AND AT LEAST SOME OF SAID TUBES OF SAID CLUSTER BEING SUPERHEATER TUBES EXTENDING FROM SAID UPPER HEADER TO SAID SECOND CHAMBER WHEREIN THE WATER EVAPORATED IN THE SAID EVAPORATING TUBES IN SUPERHEATED
References Cited (Backward Citations)
US3018764A
Cited
US3104652A
Cited
GB865997A
Cited
US3097630A
Cited
US3195517A
Cited
US3267907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |