US3358622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scum burner
Assignee: Nichols Engineering and Research Corp
•
Filing: 1965-10-14
•
Granted: 1967-12-19
•
Expires: 1985-10-14
Abstract
No abstract record available.
Inventors
- 👤 Bernard E Brennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:25
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A SCUM BURNER COMPRISING A CONTAINER HAVING A LOWER LIQUID-CONTAINING PORTION, AN UPPER COMBUSTION CHAMBER HAVING A DISCHARGE PASSAGE FOR PRODUCTS OF COMBUSTION, MEANS TO SUPPLY COMBUSTIBLE SCUM-CONTAINING MATERIAL TO SAID LOWER PORTION FOR FLOATATION OF SAID COMBUSTIBLE MATERIAL IN A LAYER ON SAID LIQUID AT A PREDETERMINED LEVEL IN SAID LOWER PORTION, MEANS FOR INTRODUCING PRIMARY AIR INTO SAID COMBUSTION CHAMBER UNDER PRESSURE IN AT LEAST ONE JET SLIGHTLY ABOVE THE LEVEL OF SAID LAYER OF COMBUSTIBLE MATERIAL, MEANS FOR INTRODUCING SECONDARY AIR AT LESS PRESSURE THAN SAID JET OF PRIMARY AIR INTO SAID COMBUSTION CHAMBER, AND MEANS IN SAID CONTAINER FOR AGITATING SAID LAYER OF COMBUSTIBLE MATERIAL.
Claim 2
Dependent Claim
109 words
A SCUM BURNER COMPRISING A CONTAINER HAVING A LOWER LIQUID-CONTAINING PORTION, AN UPPER COMBUSTION CHAMBER HAVING A DISCHARGE PASSAGE FOR PRODUCTS OF COMBUSTION, MEANS TO SUPPLY COMBUSTIBLE SCUM-CONTAINING MATERIAL TO SAID LOWER PORTION FOR FLOATATION OF SAID COMBUSTIBLE MATERIAL IN A LAYER ON SAID LIQUID AT A PREDETERMINED LEVEL IN SAID LOWER PORTION, MEANS FOR INTRODUCING PRIMARY AIR INTO SAID COMBUSTION CHAMBER UNDER PRESSURE IN AT LEAST ONE JET SLIGHTLY ABOVE THE LEVEL OF SAID LAYER OF COMBUSTIBLE MATERIAL, MEANS FOR INTRODUCING SECONDARY AIR AT LESS PRESSURE THAN SAID JET OF PRIMARY AIR INTO SAID COMBUSTION CHAMBER, AND MEANS IN SAID CONTAINER FOR AGITATING SAID LAYER OF COMBUSTIBLE MATERIAL.
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) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |