US3276437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soot blower operation for vapor generator furnaces
Assignee: —
•
Filing: —
•
Granted: 1966-10-04
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Expires: 1983-10-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:14
CPC Classifications
F; F28; F28G; F28G15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
AN APPARATUS FOR GENERATING STEAM COMPRISING A FURNACE; MEANS FOR BURNING AN ASH BEARING FUEL WITHIN SAID FURNACE; PRESSURE PARTS INCLUDING TUBULAR SURFACE LINING THE WALLS OF SAID FURNACE; A PLURALITY OF ZONES ON SAID FURNACE WALLS; A SOOT BLOWER LOCATED IN EACH ZONE; MEANS FOR SENSING THE TEMPERATURE OF THE PRESSURE PARTS AT A PRESELECTED LOCATION WITHIN EACH ZONE WHERE THE TEMPERATURE IS A FUNCTION OF THE LOCAL HEAT ABSORPTION RATE, WHICH IS IN TURN A FUNCTION OF THE THICKNESS OF AN ASH LAYER THEREON, SAID TEMPERATURE SENSING MEANS BEING IN CONTACT WITH THE PRESSURE PARTS; MEANS RESPONSIVE TO SAID TEMPERATURE SENSING MEANS FOR ACTIVATING A SOOT BLOWER IN THE ZONE IN WHICH SAID TEMPERATURE SENSING MEANS IS LOCATED WHEN THE SENSED TEMPERATURE DROPS TO A PRESELECTED TEMPERATURE LEVEL.
Claim 2
Independent Claim
130 words
AN APPARATUS FOR GENERATING STEAM COMPRISING A FURNACE; MEANS FOR BURNING AN ASH BEARING FUEL WITHIN SAID FURNACE; PRESSURE PARTS INCLUDING TUBULAR SURFACE LINING THE WALLS OF SAID FURNACE; A PLURALITY OF ZONES ON SAID FURNACE WALLS; A SOOT BLOWER LOCATED IN EACH ZONE; MEANS FOR SENSING THE TEMPERATURE OF THE PRESSURE PARTS AT A PRESELECTED LOCATION WITHIN EACH ZONE WHERE THE TEMPERATURE IS A FUNCTION OF THE LOCAL HEAT ABSORPTION RATE, WHICH IS IN TURN A FUNCTION OF THE THICKNESS OF AN ASH LAYER THEREON, SAID TEMPERATURE SENSING MEANS BEING IN CONTACT WITH THE PRESSURE PARTS; MEANS RESPONSIVE TO SAID TEMPERATURE SENSING MEANS FOR ACTIVATING A SOOT BLOWER IN THE ZONE IN WHICH SAID TEMPERATURE SENSING MEANS IS LOCATED WHEN THE SENSED TEMPERATURE DROPS TO A PRESELECTED TEMPERATURE LEVEL.
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |