Patent US3496504A successfully refreshed from Google Patents.
Patent US3076444A successfully refreshed from Google Patents.
US3076444A
Expired / Lapsed
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Vapor generators
Assignee: Foster Wheeler Inc
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Filing: 1962-01-31
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Granted: 1963-02-05
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Expires: 1982-01-31
Abstract
No abstract record available.
Inventors
- 👤 Bell Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:09
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/02; F22B1/023; F22B1/025; F22B37/00; F22B37/02; F22B37/26; F22B37/32; F22B37/327
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A VAPOR GENERATOR COMPRISING AN UPRIGHT PRESSURE VESSEL HAVING AN UPPER VAPOR SPACE AND A LOWER LIQUID SPACE, A VAPOR OUTLET FROM SAID VAPOR SPACE, A SHROUD WITHIN SAID VESSEL DEFINING A VAPOR GENERATION CHAMBER BUT SPACED FROM SAID VESSEL TO DEFINE WITH THE VESSEL AN ANNULAR DOWNCOMER PASSAGEWAY, A RISER AT THE UPPER END OF SAID VAPOR GENERATION CHAMBER, VAPOR-LIQUID SEPARATION MEANS IN COMMUNICATION WITH SAID RISER BY WHICH VAPOR FLOWS TO SAID VAPOR SPACE AND SEPARATED LIQUID FLOWS TO SAID DOWNCOMER PASSAGEWAY, AND MEANS BY WHICH SAID RISER IS APERTURED AT APPROXIMATELY THE NORMAL OPERATING WATER LEVEL OF SAID VESSEL PERMITTING A VAPORLIQUID MIXTURE TO FLOW DIRECTLY FROM SAID VAPOR GENERATION CHAMBER TO SAID DOWNCOMER PASSAGEWAY, THE SIZE OF THE APERTURE MEANS BEING SUFFICIENTLY LARGE RELATIVE TO THE SIZE OF SAID VAPOR-LIQUID SEPARATION MEANS TO GIVE A SUBSTANTIAL BOOST TO THE VAPOR AND LIQUID CIRCULATION UNDER
Claim 2
Dependent Claim
148 words
A VAPOR GENERATOR COMPRISING AN UPRIGHT PRESSURE VESSEL HAVING AN UPPER VAPOR SPACE AND A LOWER LIQUID SPACE, A VAPOR OUTLET FROM SAID VAPOR SPACE, A SHROUD WITHIN SAID VESSEL DEFINING A VAPOR GENERATION CHAMBER BUT SPACED FROM SAID VESSEL TO DEFINE WITH THE VESSEL AN ANNULAR DOWNCOMER PASSAGEWAY, A RISER AT THE UPPER END OF SAID VAPOR GENERATION CHAMBER, VAPOR-LIQUID SEPARATION MEANS IN COMMUNICATION WITH SAID RISER BY WHICH VAPOR FLOWS TO SAID VAPOR SPACE AND SEPARATED LIQUID FLOWS TO SAID DOWNCOMER PASSAGEWAY, AND MEANS BY WHICH SAID RISER IS APERTURED AT APPROXIMATELY THE NORMAL OPERATING WATER LEVEL OF SAID VESSEL PERMITTING A VAPORLIQUID MIXTURE TO FLOW DIRECTLY FROM SAID VAPOR GENERATION CHAMBER TO SAID DOWNCOMER PASSAGEWAY, THE SIZE OF THE APERTURE MEANS BEING SUFFICIENTLY LARGE RELATIVE TO THE SIZE OF SAID VAPOR-LIQUID SEPARATION MEANS TO GIVE A SUBSTANTIAL BOOST TO THE VAPOR AND LIQUID CIRCULATION UNDER
References Cited (Backward Citations)
DE952984C
Cited
US2862479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |