Patent US3224488A successfully refreshed from Google Patents.
US3224488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil burner having a combustion aid
Assignee: Sinclair Research Inc
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Filing: 1962-10-11
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Granted: 1965-12-21
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Expires: 1982-10-11
Abstract
No abstract record available.
Inventors
- 👤 Hubert L Skonecke
- 👤 James H Kirk
- 👤 Donald E Safford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:15
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/36; F23D11/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN A GUN-TYPE LIQUID FUEL BURNER HAVING A NOZZLE SURROUNDED BY AN AIR CONDUIT AND HAVING IGNITION MEANS DOWNSTREAM OF SAID NOZZLE, SAID NOZZLE BEING ADAPTED TO SPRAY FUEL INTO A MIXING ZONE CONTAINING A COMBUSTION SUPPORTING GAS, THE IMPROVEMENT WHICH COMPRISES A MEMBER IN THE PATH OF THE FUEL FLOW DOWNSTREAM OF THE NOZZLE, SAID MEMBER SUPPORTED BY ARMS EXTENDING FROM THE NOZZLE, SAID MEMBER HAVING A CONTINUOUS SPHERICAL SURFACE IN THE DIRECTION OF THE NOZZLE AND AN INWARDLYTAPERED, CONICAL SURFACE DOWNSTREAM OF THE SPHERICAL SURFACE, ACCESSIBLE TO SAID COMBUSTION-SUPPORTING GAS.
Claim 2
Dependent Claim
92 words
IN A GUN-TYPE LIQUID FUEL BURNER HAVING A NOZZLE SURROUNDED BY AN AIR CONDUIT AND HAVING IGNITION MEANS DOWNSTREAM OF SAID NOZZLE, SAID NOZZLE BEING ADAPTED TO SPRAY FUEL INTO A MIXING ZONE CONTAINING A COMBUSTION SUPPORTING GAS, THE IMPROVEMENT WHICH COMPRISES A MEMBER IN THE PATH OF THE FUEL FLOW DOWNSTREAM OF THE NOZZLE, SAID MEMBER SUPPORTED BY ARMS EXTENDING FROM THE NOZZLE, SAID MEMBER HAVING A CONTINUOUS SPHERICAL SURFACE IN THE DIRECTION OF THE NOZZLE AND AN INWARDLYTAPERED, CONICAL SURFACE DOWNSTREAM OF THE SPHERICAL SURFACE, ACCESSIBLE TO SAID COMBUSTION-SUPPORTING GAS.
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |