US3334599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace for burning bulky fuels, especially refuse, and improved method for operating the aforesaid furnace
Assignee: Von Roll AG
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Filing: 1964-11-25
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Granted: 1967-08-08
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Expires: 1984-11-25
Abstract
No abstract record available.
Inventors
- 👤 Tanner Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:31
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/02; F23G5/04; F23G5/05; F23B; F23B1/00; F23G5/002; F23B2700/00; F23B2700/012; Y; Y10; Y10S; Y10S588/00; Y10S588/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
A METHOD OF BURNING IN A FURNACE DOMESTIC AND INDUSTRIAL REFUSE OF BULKY CONDITION AND VARYING PHYSICAL AND CHEMICAL PROPERTIES, SAID METHOD INCLUDING THE STEPS OF: PLACING THE TOTAL REFUSE TO BE BURNED INTO THE ACTUAL COMBUSTION CHAMBER OF THE FURNACE; FORMING SAID TOTAL REFUSE INTO ONLY A SINGLE LAYER OF SUBSTANTIALLY UNIFORM THICKNESS; PRE-DRYING SAID SINGLE REFUSE LAYER ON A PRE-DRYING GRATE WITHIN SAID COMBUSTION CHAMBER; TRANSFERRING SAID SINGLE REFUSE LAYER ONTO A COMBUSTION GRATE, SAID COMBUSTION GRATE INCLUDING INITIAL AND FINAL PORTIONS; SUPPLYING HOT GASES TO A LOCATION BENEATH SAID INITIAL PORTION OF SAID COMBUSTION GRATE, SAID HOT GASES HAVING A TEMPERATURE AT LEAST EQUAL TO THE IGNITION POINT OF A SUBSTANTIAL PORTION OF SAID SINGLE REFUSE LAYER; PASSING SAID HOT GASES UPWARDLY THROUGH SAID INITIAL PORTION OF SAID COMBUSTION GRATE AND COMPLETELY THROUGH SAID SINGLE REFUSE LAYER TO THEREBY IGNITE FROM BELOW AT LEAST A SUBSTANTIAL PART OF SAID SINGLE REFUSE LAYER ON SAID INITIAL COMBUSTION GRATE PORTION; INTRODUCING SECONDARY AIR LATERALLY INTO SAID COMBUSTION CHAMBER AT A LOCATION ABOVE SAID INTIAL COMBUSBUSTION GRATE PORTION SO AS TO BURN AT SAID LOCATION VOLATILE CONSTITUENTS EXPELLED FROM GRATE PORTION; AND COMPLETELY BURNING THE SINGLE REFUSE LAYER DISPOSED UPON SAID FINAL PORTION OF SAID COMBUSTION GRATE.
Claim 2
Independent Claim
207 words
A METHOD OF BURNING IN A FURNACE DOMESTIC AND INDUSTRIAL REFUSE OF BULKY CONDITION AND VARYING PHYSICAL AND CHEMICAL PROPERTIES, SAID METHOD INCLUDING THE STEPS OF: PLACING THE TOTAL REFUSE TO BE BURNED INTO THE ACTUAL COMBUSTION CHAMBER OF THE FURNACE; FORMING SAID TOTAL REFUSE INTO ONLY A SINGLE LAYER OF SUBSTANTIALLY UNIFORM THICKNESS; PRE-DRYING SAID SINGLE REFUSE LAYER ON A PRE-DRYING GRATE WITHIN SAID COMBUSTION CHAMBER; TRANSFERRING SAID SINGLE REFUSE LAYER ONTO A COMBUSTION GRATE, SAID COMBUSTION GRATE INCLUDING INITIAL AND FINAL PORTIONS; SUPPLYING HOT GASES TO A LOCATION BENEATH SAID INITIAL PORTION OF SAID COMBUSTION GRATE, SAID HOT GASES HAVING A TEMPERATURE AT LEAST EQUAL TO THE IGNITION POINT OF A SUBSTANTIAL PORTION OF SAID SINGLE REFUSE LAYER; PASSING SAID HOT GASES UPWARDLY THROUGH SAID INITIAL PORTION OF SAID COMBUSTION GRATE AND COMPLETELY THROUGH SAID SINGLE REFUSE LAYER TO THEREBY IGNITE FROM BELOW AT LEAST A SUBSTANTIAL PART OF SAID SINGLE REFUSE LAYER ON SAID INITIAL COMBUSTION GRATE PORTION; INTRODUCING SECONDARY AIR LATERALLY INTO SAID COMBUSTION CHAMBER AT A LOCATION ABOVE SAID INTIAL COMBUSBUSTION GRATE PORTION SO AS TO BURN AT SAID LOCATION VOLATILE CONSTITUENTS EXPELLED FROM GRATE PORTION; AND COMPLETELY BURNING THE SINGLE REFUSE LAYER DISPOSED UPON SAID FINAL PORTION OF SAID COMBUSTION GRATE.
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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |