Patent US3405048A successfully refreshed from Google Patents.
Patent US3280800A successfully refreshed from Google Patents.
US3280800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor generator having boiler bank supported by downcomers
Assignee: Combustion Engineering Inc
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Filing: 1965-07-28
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Granted: 1966-10-25
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Expires: 1985-07-28
Abstract
No abstract record available.
Inventors
- 👤 Robert P Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:04
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/02; F22B37/24; F22B37/242
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A BOTTOM SUPPORTED VAPOR GENERATOR UNIT INCLUDING RETANGULARLY DISPOSED TUBULAR WALLS FORMING A SETTING; A BOILER BANK INCLUDING HORIZONTALLY DISPOSED UPPER AND LOWER DRUMS AND A BANK OF UPWARDLY EXTENDING TUBES CONNECTING SAID DRUMS; SAID SETTING INCLUDING OPPOSED FRONT, REAR AND SIDE WALLS FORMING A FURNACE CHAMBER LATERALLY ADJACNET AND OPENING TO SAID TUBE BANK; SUPPORT MEANS FOR SAID BOILER BANK COMPRISING HORIZONTALLY EXTENDING HEADER MEANS DISPOSED BELOW SAID LOWER DRUM, A PLURALITY OF LATERALLY SPACED UPRIGHT TUBES DISPOSED BEING THE LENGTH OF SAID LOWER DRUM AND CONNECTED AT THEIR ENDS TO SAID LOWER DRUM AND SAID HEADER MEANS, MEANS FOR BOTTOM SUPPORTING SAID HEADER MEANS; A TUBULAR WALL CLOSING THE REAR OF SAID UNIT COMPRISING GENERALLY VERTICALLY EXTENDING TUBES CONNECTED AT THEIR ENDS TO ONE OF SAID DRUMS AND TO SAID HEADER MEANS; ANDMEANS SPACED REARWARDLY OF SAID HEADER MEANS FOR VERTICALLY SUPPORTING SAID UNIT REAR CLOSURE WALL.
Claim 2
Dependent Claim
149 words
A BOTTOM SUPPORTED VAPOR GENERATOR UNIT INCLUDING RETANGULARLY DISPOSED TUBULAR WALLS FORMING A SETTING; A BOILER BANK INCLUDING HORIZONTALLY DISPOSED UPPER AND LOWER DRUMS AND A BANK OF UPWARDLY EXTENDING TUBES CONNECTING SAID DRUMS; SAID SETTING INCLUDING OPPOSED FRONT, REAR AND SIDE WALLS FORMING A FURNACE CHAMBER LATERALLY ADJACNET AND OPENING TO SAID TUBE BANK; SUPPORT MEANS FOR SAID BOILER BANK COMPRISING HORIZONTALLY EXTENDING HEADER MEANS DISPOSED BELOW SAID LOWER DRUM, A PLURALITY OF LATERALLY SPACED UPRIGHT TUBES DISPOSED BEING THE LENGTH OF SAID LOWER DRUM AND CONNECTED AT THEIR ENDS TO SAID LOWER DRUM AND SAID HEADER MEANS, MEANS FOR BOTTOM SUPPORTING SAID HEADER MEANS; A TUBULAR WALL CLOSING THE REAR OF SAID UNIT COMPRISING GENERALLY VERTICALLY EXTENDING TUBES CONNECTED AT THEIR ENDS TO ONE OF SAID DRUMS AND TO SAID HEADER MEANS; ANDMEANS SPACED REARWARDLY OF SAID HEADER MEANS FOR VERTICALLY SUPPORTING SAID UNIT REAR CLOSURE WALL.
References Cited (Backward Citations)
US2979041A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |