Patent US1444114A successfully refreshed from Google Patents.
Patent US3072177A successfully refreshed from Google Patents.
US3072177A
Expired / Lapsed
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Burner safety control
Assignee: Individual
•
Filing: 1957-07-19
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Granted: 1963-01-08
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Expires: 1977-07-19
Abstract
No abstract record available.
Inventors
- 👤 Anthony A Fennell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:15
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A CONTROL SYSTEM FOR A PLURALITY OF BURNERS COMPRISING: VALVE MEANS FOR OPERATING SAID BURNERS; RELAY MEANS FOR REGULATING SAID VALVE MEANS; CIRCUIT MEANS FOR ACTUATING SAID RELAY MEANS IN RESPONSE TO THE CONDITION OF SAID BURNERS, SAID CIRCUIT MEANS INCLUDING A PLURALITY OF SENSING CIRCUITS CONNECTED IN PARALLEL AND ADAPTED TO BE INDIVIDUALLY ASSOCIATED WITH SAID BURNERS EXTERNAL TO THE FLAMES THEREOF, EACH OF SAID SENSING CIRCUITS INCLUDING A SENSOR ADAPTED TO BE DISPOSED ADJACENT A BURNER AND A SWITCH CONNECTED IN SERIES WITH SAID SENSOR; ROTATABLE SHAFT MEANS; A PLURALITY OF CAMS AFFIXED TO SAID SHAFT MEANS AND ARRANGED TO OPERATE SAID SWITCHES IN A REPETITIVE SEQUENCE; AND MEANS RESPONSIVE TO THE ROTATION OF SAID SHAFT MEANS FOR DE-ENERGIZING THE CIRCUIT MEANS UPON CESSATION OF ROTATION OF ANY PART OF SAID SHAFT MEANS.
Claim 2
Dependent Claim
135 words
A CONTROL SYSTEM FOR A PLURALITY OF BURNERS COMPRISING: VALVE MEANS FOR OPERATING SAID BURNERS; RELAY MEANS FOR REGULATING SAID VALVE MEANS; CIRCUIT MEANS FOR ACTUATING SAID RELAY MEANS IN RESPONSE TO THE CONDITION OF SAID BURNERS, SAID CIRCUIT MEANS INCLUDING A PLURALITY OF SENSING CIRCUITS CONNECTED IN PARALLEL AND ADAPTED TO BE INDIVIDUALLY ASSOCIATED WITH SAID BURNERS EXTERNAL TO THE FLAMES THEREOF, EACH OF SAID SENSING CIRCUITS INCLUDING A SENSOR ADAPTED TO BE DISPOSED ADJACENT A BURNER AND A SWITCH CONNECTED IN SERIES WITH SAID SENSOR; ROTATABLE SHAFT MEANS; A PLURALITY OF CAMS AFFIXED TO SAID SHAFT MEANS AND ARRANGED TO OPERATE SAID SWITCHES IN A REPETITIVE SEQUENCE; AND MEANS RESPONSIVE TO THE ROTATION OF SAID SHAFT MEANS FOR DE-ENERGIZING THE CIRCUIT MEANS UPON CESSATION OF ROTATION OF ANY PART OF SAID SHAFT MEANS.
References Cited (Backward Citations)
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Cited
US2295045A
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US2291385A
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US2327690A
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US2581942A
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US2736371A
Cited
US2692962A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |