US3344835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pilotless automatic ignition apparatus
Assignee: Maloney Crawford Tank Corp
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Filing: 1964-02-26
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Granted: 1967-10-03
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Expires: 1984-02-26
Abstract
No abstract record available.
Inventors
- 👤 Robert A Hodgson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:29
CPC Classifications
F; F23; F23Q; F23Q3/00; F23Q3/002; F23D; F23D11/00; F23D11/24; F23D11/26; F23D11/28; F23Q2/00; F23Q2/28; F23Q2/285; F23Q2/287
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
IN A FLUID FUEL BURNING CONTROL SYSTEM COMPRISING: A MAIN BURNER HAVING A BURNER TIP PORTION; A FLUID FUEL SUPPLY CONDUIT; A FUEL SWITCHING VALVE HAVING A FUEL SUPPLY ENTRANCE PORT, AND FIRST AND EXIT PORTS, SAID VALVE NORMALLY POSITIONED TO PROVIDE COMMUNICATION WITH SAID FIRST EXIT PORT; A FIRST CONDUIT CONNECTING BETWEEN SAID BURNER AND SAID FIRST EXIT PORT; A SECOND CONDUIT CONNECTING BETWEEN SAID BURNER AND SAID SECOND EXIT PORT; A SPARK GENERATOR INTEGRATED IN SAID FIRST CONDUIT SO AS TO BE DRIVEN BY SAID FUEL FLOW THROUGH SAID FIRST CONDUIT ON ITS WAY TO SAID BURNER; A SPARK-ROD CONNECTED ELECTRICALLY TO SAID GENERATOR AND INSULATIVELY POSITIONED ADJACENT SAID MAIN BURNER TIP PORTION TO FORM A SPACE GAP THEREWITH; AND AN ACTUATOR MEAND TO OPERATE SAID FUEL SWITCHING VALVE TO A POSITION PROVIDING COMMUNICATION OF SAID ENTRANCE PORT WITH SAID SECOND EXIT PORT.
Claim 2
Dependent Claim
145 words
IN A FLUID FUEL BURNING CONTROL SYSTEM COMPRISING: A MAIN BURNER HAVING A BURNER TIP PORTION; A FLUID FUEL SUPPLY CONDUIT; A FUEL SWITCHING VALVE HAVING A FUEL SUPPLY ENTRANCE PORT, AND FIRST AND EXIT PORTS, SAID VALVE NORMALLY POSITIONED TO PROVIDE COMMUNICATION WITH SAID FIRST EXIT PORT; A FIRST CONDUIT CONNECTING BETWEEN SAID BURNER AND SAID FIRST EXIT PORT; A SECOND CONDUIT CONNECTING BETWEEN SAID BURNER AND SAID SECOND EXIT PORT; A SPARK GENERATOR INTEGRATED IN SAID FIRST CONDUIT SO AS TO BE DRIVEN BY SAID FUEL FLOW THROUGH SAID FIRST CONDUIT ON ITS WAY TO SAID BURNER; A SPARK-ROD CONNECTED ELECTRICALLY TO SAID GENERATOR AND INSULATIVELY POSITIONED ADJACENT SAID MAIN BURNER TIP PORTION TO FORM A SPACE GAP THEREWITH; AND AN ACTUATOR MEAND TO OPERATE SAID FUEL SWITCHING VALVE TO A POSITION PROVIDING COMMUNICATION OF SAID ENTRANCE PORT WITH SAID SECOND EXIT PORT.
References Cited (Backward Citations)
US2305242A
Cited
US3172456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |