US3223137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil burner control
Assignee: American Radiator and Standard Sanitary Corp
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Filing: 1963-01-28
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Granted: 1965-12-14
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Expires: 1983-01-28
Abstract
No abstract record available.
Inventors
- 👤 Darwin R Grahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:58
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/08; F23N5/085; F23N5/20; F23N5/206
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
A BURNER CONTROL COMPRISING A STEP DOWN TRANSFORMER HAVING A PRIMARY CIRCUIT CONNECTED WITH THE BURNER AND A SECONDARY CIRCUIT COMPRISING A ROOM THERMOSTAT, A FLAME-RESPONSIVE CONTROL DEVICE, A MANUAL RESET SWITCH AND HEATER THEREFOR, A BURNER-ENERGIZED RELAY, A SECOND RELAY ENERGIZED BY THE FLAME-RESPONSIVE CONTROL DEVICE, AND CIRCUIT CONENCTIONS OPERATIVELY ARRANGED SO THAT INITIAL ENERGIZATION OF THE ROOM THERMOSTAT SERVES TO ENERGIZE THE BURNER-ENERGIZER RELAY THROUGH THE RESET SWITCH AND HEATER, AND ESTABLISHMENT OF A BURNER FLAME CAUSES THE SECOND RELAY TO DE-ENERGIZE THE HEATER WITHOUT DE-ENERGIZING THE BURNER-ENERGIZER RELAY OR RESET SWITCH, AND THE ABSENCE OF FLAME CAUSES THE SECOND RELAY TO ENERGIZE THE HEATER AND THEREBY OPEN THE RESET SWITCH; EACH OF SAID TRANSFORMER, RELAYS, SWITCHES, AND HEATER BEING DISPOSED ON ONE FACE OF A DIELECTRIC PANEL WITH TERMINALS THEREOF PROJECTING CONNECTED BY MEANS OF TERMINALS BEING OPERATIVELY CONNECTED BY MEANS OF PRINTED CIRCUIT LINES ON THE OTHER FACE OF THE PANEL; SAID THERMOSTAT AND FLAME-RESPONSIVE CONTROL DEVICE BEING LOCATED REMOTE FROM THE PANEL AND BEING CONNECTED INTO THE CONTROL CIRCUIT BY MEANS OF TERMINALS MOUTED ON THE PANEL IN DIRECT CONNECTION WITH THE PRINTED CIRCUIT LINES.
Claim 2
Dependent Claim
190 words
A BURNER CONTROL COMPRISING A STEP DOWN TRANSFORMER HAVING A PRIMARY CIRCUIT CONNECTED WITH THE BURNER AND A SECONDARY CIRCUIT COMPRISING A ROOM THERMOSTAT, A FLAME-RESPONSIVE CONTROL DEVICE, A MANUAL RESET SWITCH AND HEATER THEREFOR, A BURNER-ENERGIZED RELAY, A SECOND RELAY ENERGIZED BY THE FLAME-RESPONSIVE CONTROL DEVICE, AND CIRCUIT CONENCTIONS OPERATIVELY ARRANGED SO THAT INITIAL ENERGIZATION OF THE ROOM THERMOSTAT SERVES TO ENERGIZE THE BURNER-ENERGIZER RELAY THROUGH THE RESET SWITCH AND HEATER, AND ESTABLISHMENT OF A BURNER FLAME CAUSES THE SECOND RELAY TO DE-ENERGIZE THE HEATER WITHOUT DE-ENERGIZING THE BURNER-ENERGIZER RELAY OR RESET SWITCH, AND THE ABSENCE OF FLAME CAUSES THE SECOND RELAY TO ENERGIZE THE HEATER AND THEREBY OPEN THE RESET SWITCH; EACH OF SAID TRANSFORMER, RELAYS, SWITCHES, AND HEATER BEING DISPOSED ON ONE FACE OF A DIELECTRIC PANEL WITH TERMINALS THEREOF PROJECTING CONNECTED BY MEANS OF TERMINALS BEING OPERATIVELY CONNECTED BY MEANS OF PRINTED CIRCUIT LINES ON THE OTHER FACE OF THE PANEL; SAID THERMOSTAT AND FLAME-RESPONSIVE CONTROL DEVICE BEING LOCATED REMOTE FROM THE PANEL AND BEING CONNECTED INTO THE CONTROL CIRCUIT BY MEANS OF TERMINALS MOUTED ON THE PANEL IN DIRECT CONNECTION WITH THE PRINTED CIRCUIT LINES.
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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |