Patent US439850A successfully refreshed from Google Patents.
Patent US3242909A successfully refreshed from Google Patents.
US3242909A
Expired / Lapsed
US
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Vapor generators
Assignee: Foster Wheeler Inc
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Filing: 1964-12-04
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Granted: 1966-03-29
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Expires: 1984-12-04
Abstract
No abstract record available.
Inventors
- 👤 Stern Tobias
- 👤 Schonberger Jay Frederic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:18
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/02; F22B1/021; B; B01; B01D; B01D45/00; B01D45/12; F22B37/00; F22B37/02; F22B37/26; F22B37/32; F22B37/327
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
174 words
A VAPOR GENERATOR COMPRISING: A HEAT EXCHANGER OF THE TUBE TYPE FOR VAPORIZING LIQUID AND HAVING A CIRCULAR OPENING THERETHROUGH, A CYLINDRICAL COLLAR EXTENDING OUTWARDLY FROM SAID CIRCULAR OPENING IN SAID HEAT EXCHANGER; A CYLINDRICAL VESSEL CONNECTED TO SAID CYLINDRICAL COLLAR; A CYLINDRICAL BAFFLE EXTENDING OUTWARDLY FROM SAID CYLINDRICAL COLLAR AND SUBSTANTIALLY CONCENTRICALLY WITHIN SAID VESSEL, SAID CYLINDRICAL BAFFLE AND SAID CYLINDRICAL VESSEL FORMING AN ANNULAR POCKET THEREBETWEEN, SAID CYLINDRICAL BAFFLE HAVING A PLURALITY OF OPENINGS THEREIN ABOUT ITS PERIPHERY COMMUNICATING WITH SAID ANNULAR POCKET; A LIQUID DOWNCOMER FORMING AN ENCLOSED PASSGEWAY FROM THE TOP OF SAID HEAT EXCHANGER TO THE BOTTOM OF SAID HEAT EXCHANGER AND INCLUDING A CYLINDRICAL CONTAINER LOCATED SUBSTANTIALLY CONCENTRICALLY WITHIN SAID COLLAR, SAID CONTAINER HAVING A PLURALITY OF OPENINGS THERETHROUGH ABOUT ITS PERIPHERY EQUAL IN NUMBER TO THE NUMBER OF OPENINGS ABOUT SAID CYLINDRICAL COLLECTOR, AND A MULTIPLICITY OF DUCTS EACH CONNECTING ONE OF SAID OPENINGS IN SAID CYLINDRICAL BAFFLE TO ONE OF SAID OPENINGS IN SAID COLLECTOR, SAID DUCTS EXTENDING UPWARDLY AND RADIALLY OUTWARDLY FROM SAID CYLINDRICAL CONTAINER.
References Cited (Backward Citations)
US2654351A
Cited
US3103206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |