US3150709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner control apparatus
Assignee: Honeywell Inc
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Filing: 1962-09-20
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Granted: 1964-09-29
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Expires: 1982-09-20
Abstract
No abstract record available.
Inventors
- 👤 Lester N Bolmgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:00
CPC Classifications
F; F23; F23Q; F23Q9/00; F23Q9/08; F23Q9/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
103 words
BURNER CONTROL APPARATUS FOR USE WITH A MULTIPLE FUEL BURNER UNIT TO PROVIDE INDICATION OF THE FIRST OF THE MULTIPLE BURNERS TO EXPERIENCE A FLAME FAILURE, COMPRISING; A PLURALITY OF FLAME DETECTORS, ONE OF WHICH IS ASSOCIATED WITH EACH OF THE BURNERS TO SENSE THE PRESENCE OR ABSENCE OF FLAME AT ITS RESPECTIVE BURNER, AND EACH OF WHICH INCLUDES AN OUTPUT FLAME RELAY INCLUDING SWITCH MEANS, A PLURALITY OF ELECTRICALLY ENERGIZABLE INDICATORS, ONE OF WHICH IS ASSOCIATED WITH EACH OF SAID FLAME DETECTORS, A SOURCE OF VOLTAGE, IMPEDANCE MEANS CONNECTED IN SERIES THEREWITH, A PLURALITY OF PARALLEL CIRCUIT MEANS, EACH OF WHICH IN-
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) | 1967-09-29 | 1968-03-30 | 1968-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-29 | 1972-03-30 | 1972-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-29 | 1976-03-30 | 1976-09-29 | $7700.00 | Window Closed / Lapsed |