US3209811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination high velocity burner
Assignee: Loftus Engineering Corp
•
Filing: 1963-03-28
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Granted: 1965-10-05
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Expires: 1983-03-28
Abstract
No abstract record available.
Inventors
- 👤 Robert W Strang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:17
CPC Classifications
F; F23; F23N; F23N1/00; F23N1/02; F23N1/025; C; C21; C21D; C21D9/00; C21D9/70; F23D; F23D14/00; F23D14/20; F23D14/22; F23L; F23L15/00; F23L15/04; F23N2235/00; F23N2235/02; F23N2235/06; F23N2235/12; F23N2235/14; F23N5/00; F23N5/02; F23N5/10; Y; Y02; Y02E; Y02E20/00; Y02E20/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A HIGH-VELOCITY BURNER FOR INDUSTRIAL FURNACES COMPRISING A BURNER BODY INCLUDING AN AIR CHAMBER AND PROVIDED WITH A REFRACTORY BAFFLE THAT FORMS A WALL PORTION OF SAID CHAMBER, SAID BURNER HAVING A DUCT THAT OPENS THROUGH SAID BAFFLE FOR DELIVERING GASEOUS FUEL FROM THE BURNER, PARTITION MEANS IN THE BURNER BODY FOR DIVIDING SAID CHAMBER INTO TWO COMPARTMENTS, SAID BAFFLE HAVING TWO SETS OF AIR PASSAGE THAT OPEN SEVERALLY FROM SAID COMPARTMENTS, EACH SET OF AIR PASSAGES BEING DISTRIBUTED WITH RESPECT TO THE POINT OF FUEL DELIVERY THROUGH THE BAFFLE, A COMBUSTIN AIR DUCT OPENING INTO SAID BURNER, A VALVE MOVABLE INTO SEVERAL POSITIONS RELATIVELY TO SAID PARTITION MEANS FOR DIRECTING COMBUSTION AIR SELECTIVELY INTO BOTH AND INTO EITHER EXCLUSIVELY OF SAID COMPARTMENTS, AND MEANS COORDINATED WITH THE RATE OF FLOW OF GAGEOUS FUEL FROM SAID BURNER FOR AUTOMATICALLY MOVING SAID VALVE FROM ONE TO ANOTHER OF SAID POSITIONS.
Claim 2
Dependent Claim
149 words
A HIGH-VELOCITY BURNER FOR INDUSTRIAL FURNACES COMPRISING A BURNER BODY INCLUDING AN AIR CHAMBER AND PROVIDED WITH A REFRACTORY BAFFLE THAT FORMS A WALL PORTION OF SAID CHAMBER, SAID BURNER HAVING A DUCT THAT OPENS THROUGH SAID BAFFLE FOR DELIVERING GASEOUS FUEL FROM THE BURNER, PARTITION MEANS IN THE BURNER BODY FOR DIVIDING SAID CHAMBER INTO TWO COMPARTMENTS, SAID BAFFLE HAVING TWO SETS OF AIR PASSAGE THAT OPEN SEVERALLY FROM SAID COMPARTMENTS, EACH SET OF AIR PASSAGES BEING DISTRIBUTED WITH RESPECT TO THE POINT OF FUEL DELIVERY THROUGH THE BAFFLE, A COMBUSTIN AIR DUCT OPENING INTO SAID BURNER, A VALVE MOVABLE INTO SEVERAL POSITIONS RELATIVELY TO SAID PARTITION MEANS FOR DIRECTING COMBUSTION AIR SELECTIVELY INTO BOTH AND INTO EITHER EXCLUSIVELY OF SAID COMPARTMENTS, AND MEANS COORDINATED WITH THE RATE OF FLOW OF GAGEOUS FUEL FROM SAID BURNER FOR AUTOMATICALLY MOVING SAID VALVE FROM ONE TO ANOTHER OF SAID POSITIONS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |