US3215126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Once-through vapor generator
Assignee: Babcock and Wilcox Co
•
Filing: 1960-12-19
•
Granted: 1965-11-02
•
Expires: 1980-12-19
Abstract
No abstract record available.
Inventors
- 👤 Theodore S Sprague
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:22
CPC Classifications
F; F22; F22B; F22B35/00; F22B35/06; F22B35/10; F22G; F22G5/00; F22G5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A ONCE-THROUGH VAPOR GENERATING UNIT FOR SUPPLYING VAPOR TO A POINT OF USE, A THERMAL ENERGY SOURCE, A MULTIPLICITY OF LONG SMALL BORE TUBES ARRANGED IN PARALLEL FLOW RELATION TO GENERATE VAPOR FROM THE HEAT OF SAID SOURCE, MEANS SUPPLYING A VAPORIZABLE LIQUID TO THE INLETS OF SAID TUBES, A DRUM ARRANGED TO CONTAIN A BODY OF LIQUID BELOW AN UPPER VAPOR SPACE AND ARRANGED TO RECEIVE THE HEATED FLUID FROM SAID TUBES, MEANS FOR CONTINUOUSLY PASSING A SMALL QUANTITY OF THE HEATED FLUID DISCHARGING FROM SAID TUBES DIRECTLY TO THE LIQUID SPACE OF SAID DRUM AND FOR PASSING THE REMAINDER OF SAID HEATED FLUID TO THE VAPOR SPACE OF SAID DRUM, AND A CONTROL RESPONSIVE TO THE LIQUID LEVEL VARIATIONS IN SAID DRUM TO MAINTAIN A RATE OF FLOW OF SAID FLUID THROUGH SAID TUBES SUBSTANTIALLY EQUAL TO THE VAPOR DEMAND ON SAID UNIT.
Claim 2
Dependent Claim
146 words
IN A ONCE-THROUGH VAPOR GENERATING UNIT FOR SUPPLYING VAPOR TO A POINT OF USE, A THERMAL ENERGY SOURCE, A MULTIPLICITY OF LONG SMALL BORE TUBES ARRANGED IN PARALLEL FLOW RELATION TO GENERATE VAPOR FROM THE HEAT OF SAID SOURCE, MEANS SUPPLYING A VAPORIZABLE LIQUID TO THE INLETS OF SAID TUBES, A DRUM ARRANGED TO CONTAIN A BODY OF LIQUID BELOW AN UPPER VAPOR SPACE AND ARRANGED TO RECEIVE THE HEATED FLUID FROM SAID TUBES, MEANS FOR CONTINUOUSLY PASSING A SMALL QUANTITY OF THE HEATED FLUID DISCHARGING FROM SAID TUBES DIRECTLY TO THE LIQUID SPACE OF SAID DRUM AND FOR PASSING THE REMAINDER OF SAID HEATED FLUID TO THE VAPOR SPACE OF SAID DRUM, AND A CONTROL RESPONSIVE TO THE LIQUID LEVEL VARIATIONS IN SAID DRUM TO MAINTAIN A RATE OF FLOW OF SAID FLUID THROUGH SAID TUBES SUBSTANTIALLY EQUAL TO THE VAPOR DEMAND ON SAID UNIT.
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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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |