Patent US3273626A successfully refreshed from Google Patents.
US3273626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner control system
Assignee: —
•
Filing: —
•
Granted: 1966-09-20
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Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:25
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/08; F23N5/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN AN OIL BURNER SYSTEM IN WHICH AN OIL LAMP IS ROTATED BY THE ROTOR OF AN ELECTRIC MOTOR HAVING A RUN ACTUATOR TO PROVIDE RUNNING TORQUE AND A START ACTUATOR TO AID THE RUN ACTUATOR IN PROVIDING A HIGH STARTING TORQUE WHICH IS NECESSARY TO INSTITUTE ROTATION OF THE ROTOR; A TIME DELAYED TEMPERATURE RESPONSIVE SWITCH MOUNTED TO BE RESPONSIVE TO THE AMBIENT TEMPERATURE OF THE MOTOR, AND HAVING A SINGLE ELECTRICALLY ENERGIZABLE ACTUATOR ELECTRICALLY CONNECTED IN CIRCUIT WITH THE RUN AND START ACTUATOR TO BE RESPONSIVE TO THE ELECTRICAL CURRENT DRAWN BY THE MOTOR, AND A FAST-ACTING ELECTRIC FLAME DETECTOR INCLUDING A FLAME RELAY HAVING A NORMALLY CLOSED NO-FLAME SWITCH CONNECTED IN SERIES WITH ONLY THE START ACTUATOR TO DE-ENERGIZED TO START ACTUATOR UPON DETECTION OF FLAME,
Claim 2
Dependent Claim
129 words
IN AN OIL BURNER SYSTEM IN WHICH AN OIL LAMP IS ROTATED BY THE ROTOR OF AN ELECTRIC MOTOR HAVING A RUN ACTUATOR TO PROVIDE RUNNING TORQUE AND A START ACTUATOR TO AID THE RUN ACTUATOR IN PROVIDING A HIGH STARTING TORQUE WHICH IS NECESSARY TO INSTITUTE ROTATION OF THE ROTOR; A TIME DELAYED TEMPERATURE RESPONSIVE SWITCH MOUNTED TO BE RESPONSIVE TO THE AMBIENT TEMPERATURE OF THE MOTOR, AND HAVING A SINGLE ELECTRICALLY ENERGIZABLE ACTUATOR ELECTRICALLY CONNECTED IN CIRCUIT WITH THE RUN AND START ACTUATOR TO BE RESPONSIVE TO THE ELECTRICAL CURRENT DRAWN BY THE MOTOR, AND A FAST-ACTING ELECTRIC FLAME DETECTOR INCLUDING A FLAME RELAY HAVING A NORMALLY CLOSED NO-FLAME SWITCH CONNECTED IN SERIES WITH ONLY THE START ACTUATOR TO DE-ENERGIZED TO START ACTUATOR UPON DETECTION OF FLAME,
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |