US3241505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for regulating the supply of pulverized fuel slurry to a furnace
Assignee: Combustion Engineering Inc
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Filing: 1963-07-17
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Granted: 1966-03-22
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Expires: 1983-07-17
Abstract
No abstract record available.
Inventors
- 👤 James R M Long
- 👤 Jonakin James
- 👤 Virginius Z Caracristi
- 👤 Bogot Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:11
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/32; C10L1/322; C21; C21B; C21B5/00; C21B5/001; C21B5/003; C21B5/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
212 words
A FUEL BURNING SYSTEM ARRANGED TO OPERATE EMPLOYING FUEL IN THE FORM OF COAL-OIL SLURRY COMPRISING A FURNACE; BRUNER MEANS ARRANGED TO OPERATE IN SAID FURNACE; A MIXING TANK; A COAL PULVERIZER ADAPTED TO DISCHARGED PULVERIZED COAL TO SAID MIXING TANK; MEANS FOR FEEDING RAW COAL TO SAID PULVERIZER; FIRST SIGNAL RESPONSIVE REGULATOR MEANS ASSOCIATED WITH SAID RAW COAL FEEDING MEANS FOR REGULATING THE SUPPLY TO RAW COAL TO SAID PULVERIZER; MEANS FOR FEEDING OIL TO SAID MIXING TANK; SECOND SIGNAL RESPONSE REGULATOR MEANS ASSOCIATED WITH SAID OIL FEED MEANS FOR REGULATING THE AMOUNT OF OIL PASSED TO SAID MIXING TANK; AGITATOR MEANS OPERATIVE IN SAID MIXING TANK FOR MIXING THE COAL AND OIL SUPPLIED THERETO INTO A SLURRY; MEANS FOR SUPPLYING COAL-OIL SLURRY FROM SAID MIXING TANK TO SAID BURNER MEANS, FIRST CONTROL MEANS FOR OPERATING SAID SLURRY SUPPLY MEANS TO FEED SLURRY TO SAID BURNER MEANS IN RESPONSE TO THE LOAD DEMAND THEREON; MEANS FOR SENSING THE AMOUNT OF COAL-OIL SLURRY REMOVED FROM SAID MIXING TANK AND FOR EMITTING A SIGNAL IN RESPONSE THERETO; AND SECOND CONTROL MEANS INCLUDING MEANS OPERABLE TO SIMULTANEOUSLY ACTUATE SAID FIRST AND SECOND REGULATOR MEANS FOR PASSING PREDETERMINED AMOUNTS OF COAL AND OIL IN RESPONSE TO THE SIGNAL EMITTED BY SAID SLURRY SUPPLY SENSING MEANS.
Claim 2
Dependent Claim
212 words
A FUEL BURNING SYSTEM ARRANGED TO OPERATE EMPLOYING FUEL IN THE FORM OF COAL-OIL SLURRY COMPRISING A FURNACE; BRUNER MEANS ARRANGED TO OPERATE IN SAID FURNACE; A MIXING TANK; A COAL PULVERIZER ADAPTED TO DISCHARGED PULVERIZED COAL TO SAID MIXING TANK; MEANS FOR FEEDING RAW COAL TO SAID PULVERIZER; FIRST SIGNAL RESPONSIVE REGULATOR MEANS ASSOCIATED WITH SAID RAW COAL FEEDING MEANS FOR REGULATING THE SUPPLY TO RAW COAL TO SAID PULVERIZER; MEANS FOR FEEDING OIL TO SAID MIXING TANK; SECOND SIGNAL RESPONSE REGULATOR MEANS ASSOCIATED WITH SAID OIL FEED MEANS FOR REGULATING THE AMOUNT OF OIL PASSED TO SAID MIXING TANK; AGITATOR MEANS OPERATIVE IN SAID MIXING TANK FOR MIXING THE COAL AND OIL SUPPLIED THERETO INTO A SLURRY; MEANS FOR SUPPLYING COAL-OIL SLURRY FROM SAID MIXING TANK TO SAID BURNER MEANS, FIRST CONTROL MEANS FOR OPERATING SAID SLURRY SUPPLY MEANS TO FEED SLURRY TO SAID BURNER MEANS IN RESPONSE TO THE LOAD DEMAND THEREON; MEANS FOR SENSING THE AMOUNT OF COAL-OIL SLURRY REMOVED FROM SAID MIXING TANK AND FOR EMITTING A SIGNAL IN RESPONSE THERETO; AND SECOND CONTROL MEANS INCLUDING MEANS OPERABLE TO SIMULTANEOUSLY ACTUATE SAID FIRST AND SECOND REGULATOR MEANS FOR PASSING PREDETERMINED AMOUNTS OF COAL AND OIL IN RESPONSE TO THE SIGNAL EMITTED BY SAID SLURRY SUPPLY SENSING MEANS.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |