US3297004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supercritical pressure recirculating boiler
Assignee: Riley Power Inc
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Filing: 1965-08-26
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Granted: 1967-01-10
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Expires: 1985-08-26
Abstract
No abstract record available.
Inventors
- 👤 Carl R Midtlyng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:47
CPC Classifications
F; F22; F22B; F22B29/00; F22B29/02; F22B29/023; F22B29/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A SUPERCRITICAL PRESSURE BOILER HAVING A COMBUSTION CHAMBER, COMPRISING (A) A MAIN HEAT ABSORPTION SECTION HAVING AN INLET HEADER AT ITS LOWER END AND AN OUTLET HEADER AT ITS UPPER END, THE SECTION BEING LOCATED IN THE COMBUSTION CHAMBER AND MEANS TO HEAT SAID SECTION WHEREBY ONE PART RECEIVES LESS HEAT THAN ANOTHER PART AND DELIVERS FLUID OF LOWER THAN AVERAGE TEMPERATURE TO A PORTION OF THE OUTLET HEADER, (B) A RECIRCULATING CIRCUIT INCLUDING A MIXING DEVICE JOINING THE SAID INLET AND OUTLET HEADERS, (C) A FEED CIRCUIT INCLUDING A MAIN FEED PUMP CONNECTED TO THE MIXING DEVICE, (D) A RECIRCULATING SYSTEM CONNECTED IN THE RECIRCULATING CIRCUIT, (E) MEANS CONNECTING SAID PORTION OF THE SAID OUTLET HEADER RECEIVING FLUID OF LOWER THAN AVERAGE TEMPERATURE TO THE MIXING DEVICE, AND (F) A SUPERHEATER CONDUIT CONNECTED TO A PORTION OF THE OUTLET HEADER RECEIVING FLUID OF HIGHER THAN AVERAGE TEMPERATURE.
Claim 2
Dependent Claim
148 words
A SUPERCRITICAL PRESSURE BOILER HAVING A COMBUSTION CHAMBER, COMPRISING (A) A MAIN HEAT ABSORPTION SECTION HAVING AN INLET HEADER AT ITS LOWER END AND AN OUTLET HEADER AT ITS UPPER END, THE SECTION BEING LOCATED IN THE COMBUSTION CHAMBER AND MEANS TO HEAT SAID SECTION WHEREBY ONE PART RECEIVES LESS HEAT THAN ANOTHER PART AND DELIVERS FLUID OF LOWER THAN AVERAGE TEMPERATURE TO A PORTION OF THE OUTLET HEADER, (B) A RECIRCULATING CIRCUIT INCLUDING A MIXING DEVICE JOINING THE SAID INLET AND OUTLET HEADERS, (C) A FEED CIRCUIT INCLUDING A MAIN FEED PUMP CONNECTED TO THE MIXING DEVICE, (D) A RECIRCULATING SYSTEM CONNECTED IN THE RECIRCULATING CIRCUIT, (E) MEANS CONNECTING SAID PORTION OF THE SAID OUTLET HEADER RECEIVING FLUID OF LOWER THAN AVERAGE TEMPERATURE TO THE MIXING DEVICE, AND (F) A SUPERHEATER CONDUIT CONNECTED TO A PORTION OF THE OUTLET HEADER RECEIVING FLUID OF HIGHER THAN AVERAGE TEMPERATURE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |