Patent US3194020A successfully refreshed from Google Patents.
US3194020A
Expired / Lapsed
US
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Method and apparatus relating to vapor generation
Assignee: Combustion Engineering Inc
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Filing: 1963-03-25
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Granted: 1965-07-13
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Expires: 1983-03-25
Abstract
No abstract record available.
Inventors
- 👤 Frederick J Hanzalek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:20
CPC Classifications
F; F22; F22B; F22B29/00; F22B29/02; F01; F01K; F01K3/00; F01K3/18; F01K3/20; F01K3/22; F22B29/06; F22B29/12; F22B35/00; F22B35/06; F22B35/14; F22D; F22D11/00; F22D11/02; F22G; F22G5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A ONCE-THROUGH FLOW VAPOR GENERATOR HAVING A THROUGH-FLOW CIRCUIT THAT INCLUDES A PLURALITY OF HEAT EXCHANGE SECTIONS CONNECTED IN SERIES FLOW RELATION WITH A RECIRCULATING SYSTEM SUPERIMPOSED ON THE THROUGH-FLOW SYSTEM INCLUDING THE REGION THEREOF THAT HAS THE HIGHEST RATE OF HEAT ABSORPTION, SAID RECIRCULATING SYSTEM BEING OPERATIVE DURING START UP OF THE GENERATOR, SAID GENERATOR HAVING A MAIN FEED PUMP, A TURBINE OPERATIVE TO DRIVE SAID PUMP, AND AN AUXILIARY VAPOR GENERATOR OPERATIVELY
Claim 2
Dependent Claim
74 words
A ONCE-THROUGH FLOW VAPOR GENERATOR HAVING A THROUGH-FLOW CIRCUIT THAT INCLUDES A PLURALITY OF HEAT EXCHANGE SECTIONS CONNECTED IN SERIES FLOW RELATION WITH A RECIRCULATING SYSTEM SUPERIMPOSED ON THE THROUGH-FLOW SYSTEM INCLUDING THE REGION THEREOF THAT HAS THE HIGHEST RATE OF HEAT ABSORPTION, SAID RECIRCULATING SYSTEM BEING OPERATIVE DURING START UP OF THE GENERATOR, SAID GENERATOR HAVING A MAIN FEED PUMP, A TURBINE OPERATIVE TO DRIVE SAID PUMP, AND AN AUXILIARY VAPOR GENERATOR OPERATIVELY
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |