US3324926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for igniting and checking the flame of a burner
Assignee: Heinrich Koppers GmbH
•
Filing: 1965-11-01
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Granted: 1967-06-13
•
Expires: 1985-11-01
Abstract
No abstract record available.
Inventors
- 👤 Jakobi Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:24
CPC Classifications
F; F23; F23Q; F23Q3/00; F23Q3/008; F23N; F23N5/00; F23N5/02; F23N5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
225 words
A DEVICE FOR IGNITING AND CHECKING THE FLAME OF A BURNER, COMPRISING, IN COMBINATION, A BURNER BODY FORMED WITH AN ELONGATED BORE THERETHROUGH TAPERING FROM OPPOSITE ENDS TO A CROSS-SECTION OF SMALLEST DIAMETER INTERMEDIATE THE OPPOSITE ENDS OF SAID BORE; AIR CHAMBER MEANS ARRANGED ADJACENT ONE END OF SAID BURNER BODY AND COMMUNICATING WITH ONE END OF SAID BORE; A GAS NOZZLE EXTENDING THROUGH SAID AIR CHAMBER MEANS INTO SAID ONE END OF SAID BORE TOWARD BUT SHORT OF SAID SMALLEST DIAMETER THEREOF AND DEFINING WITH AN INNER SURFACE PORTION OF SAID BORE BETWEEN SAID ONE END AND SAID SMALLEST DIAMETER THEREOF AN ANNULAR PASSAGE THROUGH WHICH AIR CAN FLOW FROM SAID AIR CHAMBER MEANS TOWARDS THE OTHER END OF SAID BORE; A SPARK PLUG EXTENDING THROUGH AND SLIGHTLY BEYOND SAID GAS NOZZLE SPACED FROM THE INNER SURFACE THEREOF SO THAT GAS MAY FLOW THROUGH THE ANNULAR SPACE EFINED BY THE OUTER SURFACE OF SAID PLUG AND THE INNER SURFACE OF SAID NOZZLE AND BE IGNITED BY SAID SPARK PLUG SO THAT A FLAME WILL FORM DOWNSTREAM OF SAID SMALLEST BORE DIAMETER; SUBSTANTIALLY STRAIGHT PASSAGE MEANS COMMUNICATING WITH SAID AIR CHAMBER MEANS AND WITH SAID BORE DOWNSTREAM OF SAID SMALLEST DIAMETER THEREOF; AND FLAME DETECTOR MEANS ARRANGED ALONG THE AXIS OF SAID STRAIGHT PASSAGE MEANS UPSTREAM OF SAID AIR CHAMBER MEANS FOR CHECKING THE FLAME.
Claim 2
Independent Claim
225 words
A DEVICE FOR IGNITING AND CHECKING THE FLAME OF A BURNER, COMPRISING, IN COMBINATION, A BURNER BODY FORMED WITH AN ELONGATED BORE THERETHROUGH TAPERING FROM OPPOSITE ENDS TO A CROSS-SECTION OF SMALLEST DIAMETER INTERMEDIATE THE OPPOSITE ENDS OF SAID BORE; AIR CHAMBER MEANS ARRANGED ADJACENT ONE END OF SAID BURNER BODY AND COMMUNICATING WITH ONE END OF SAID BORE; A GAS NOZZLE EXTENDING THROUGH SAID AIR CHAMBER MEANS INTO SAID ONE END OF SAID BORE TOWARD BUT SHORT OF SAID SMALLEST DIAMETER THEREOF AND DEFINING WITH AN INNER SURFACE PORTION OF SAID BORE BETWEEN SAID ONE END AND SAID SMALLEST DIAMETER THEREOF AN ANNULAR PASSAGE THROUGH WHICH AIR CAN FLOW FROM SAID AIR CHAMBER MEANS TOWARDS THE OTHER END OF SAID BORE; A SPARK PLUG EXTENDING THROUGH AND SLIGHTLY BEYOND SAID GAS NOZZLE SPACED FROM THE INNER SURFACE THEREOF SO THAT GAS MAY FLOW THROUGH THE ANNULAR SPACE EFINED BY THE OUTER SURFACE OF SAID PLUG AND THE INNER SURFACE OF SAID NOZZLE AND BE IGNITED BY SAID SPARK PLUG SO THAT A FLAME WILL FORM DOWNSTREAM OF SAID SMALLEST BORE DIAMETER; SUBSTANTIALLY STRAIGHT PASSAGE MEANS COMMUNICATING WITH SAID AIR CHAMBER MEANS AND WITH SAID BORE DOWNSTREAM OF SAID SMALLEST DIAMETER THEREOF; AND FLAME DETECTOR MEANS ARRANGED ALONG THE AXIS OF SAID STRAIGHT PASSAGE MEANS UPSTREAM OF SAID AIR CHAMBER MEANS FOR CHECKING THE FLAME.
References Cited (Backward Citations)
US2332210A
Cited
US3224487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |