US3266549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas burner
Assignee: Individual
•
Filing: 1964-07-03
•
Granted: 1966-08-16
•
Expires: 1984-07-03
Abstract
No abstract record available.
Inventors
- 👤 John J Wolfersperger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:36
CPC Classifications
F; F23; F23D; F23D14/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A GAS BURNER FOR USE WITH BOILERS AND THE LIKE, INCLUDING IN COMBINATION: AN OUTER SHELL HAVING A GENERALLY CYLINDRICAL PORTION, AND AN AXIAL OUTLET, SAID CYLINDRICAL PORTION HAVING AN AIR INLET OPENING. A CYLINDRICAL SLEEVE SUPPORTED CONCENTRICALLY WITHIN SAID CYLINDRICAL PORTION AND SPACED RADIALLY THEREFROM TO DEFINE AN ANNULAR AIR FLOW DUCT IN COMMUNICATION WITH SAID AIR INLET OPENING, AN END PLATE CLOSING ONE END OF SAID BURNER AND OF SAID CYLINDRICAL PORTION, SAID SLEEVE BEING SPACED AXIALLY THEREFROM TO PROVIDE FOR RADIAL INWARD PASSAGE OF AIR FROM SAID DUCT, AN ANNULAR GAS TUBE HAVING AN AXIAL LENGTH SHORTER THAN SAID SLEEVE AND MOUNTED CONCENTRICALLY WITHIN SAID SLEEVE AND SPACED THEREFROM TO PROVIDE A NARROW ANNULAR AIR PASSAGE THEREBETWEEN, SAID TUBE HAVING AN INNER CYLINDRICAL WALL WITH A SERIES OF NARROW AXIALLY EXTENDING RADIAL SLOTS SPACED AROUND ITS CIRCUMFERENCE FOR PROJECTING GAS RADIALLY TOWARD THE AXIS OF THE BURNER, AND A GAS SUPPLY CONDUIT LEADING INTO SAID TUBE.
Claim 2
Dependent Claim
159 words
A GAS BURNER FOR USE WITH BOILERS AND THE LIKE, INCLUDING IN COMBINATION: AN OUTER SHELL HAVING A GENERALLY CYLINDRICAL PORTION, AND AN AXIAL OUTLET, SAID CYLINDRICAL PORTION HAVING AN AIR INLET OPENING. A CYLINDRICAL SLEEVE SUPPORTED CONCENTRICALLY WITHIN SAID CYLINDRICAL PORTION AND SPACED RADIALLY THEREFROM TO DEFINE AN ANNULAR AIR FLOW DUCT IN COMMUNICATION WITH SAID AIR INLET OPENING, AN END PLATE CLOSING ONE END OF SAID BURNER AND OF SAID CYLINDRICAL PORTION, SAID SLEEVE BEING SPACED AXIALLY THEREFROM TO PROVIDE FOR RADIAL INWARD PASSAGE OF AIR FROM SAID DUCT, AN ANNULAR GAS TUBE HAVING AN AXIAL LENGTH SHORTER THAN SAID SLEEVE AND MOUNTED CONCENTRICALLY WITHIN SAID SLEEVE AND SPACED THEREFROM TO PROVIDE A NARROW ANNULAR AIR PASSAGE THEREBETWEEN, SAID TUBE HAVING AN INNER CYLINDRICAL WALL WITH A SERIES OF NARROW AXIALLY EXTENDING RADIAL SLOTS SPACED AROUND ITS CIRCUMFERENCE FOR PROJECTING GAS RADIALLY TOWARD THE AXIS OF THE BURNER, AND A GAS SUPPLY CONDUIT LEADING INTO SAID TUBE.
References Cited (Backward Citations)
US1430327A
Cited
US1790927A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |