Patent US3155142A successfully refreshed from Google Patents.
US3155142A
Expired / Lapsed
US
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Radiant gas burner
Assignee: 3M Co
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Filing: 1961-02-13
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Granted: 1964-11-03
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Expires: 1981-02-13
Abstract
No abstract record available.
Inventors
- 👤 Thomas N Stack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:05
CPC Classifications
F; F23; F23C; F23C99/00; F23C2700/00; F23C2700/04; F23C2700/046; F23D; F23D14/00; F23D14/12; F23D14/14; F23D14/148; F23D2203/00; F23D2203/10; F23D2203/104; F23D2900/00; F23D2900/00003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A GAS BURNER ASSEMBLY OPERABLE UNDER A VARIETY OF INLET GAS VELOCITIES AND PRESSURES, COMPRISING A MULTIPORT REFRACTORY CERAMIC RADIATION PLATE WHICH PROMOTES FLASHBACK OF FLAME THEREBENEATH, A SEPARATE MULTIPORT FEED PLATE WHICH ARRESTS FLASHBACK OF FLAME THERETHROUGH, AND A MULTIPORT REFRACTORY CERAMIC COMBUSTION PLATE WHICH PROMOTES SURFACE COMBUSTION OF REACTANT GASES WITHIN THE PORTS THEREOF AS SAID GASES PASS THERETHROUGH, SAID COMBUSTION PLATE BEING BETWEEN APPROXIMATELY 1/8 INCH AND 2 INCHES THICK, HAVING A SUPERFICIAL SURFACE VALUE BETWEEN ABOUT 5 AND 75, AND BEING SPACED BETWEEN SAID RADIATION PLATE AND FEED PLATE WITHIN A CONFINED COMBUSTION ZONE, THE ARRANGEMENT OF SAID PLATES WITHIN SAID GAS BURNER ASSEMBLY BEING SUCH THAT SUBSTANTIALLY ALL GASEOUS MATERIAL FLOWING THROUGH THE GAS BURNER ASSEMBLY MUST FLOW THROUGH EACH OF SAID PLATES.
Claim 2
Dependent Claim
128 words
A GAS BURNER ASSEMBLY OPERABLE UNDER A VARIETY OF INLET GAS VELOCITIES AND PRESSURES, COMPRISING A MULTIPORT REFRACTORY CERAMIC RADIATION PLATE WHICH PROMOTES FLASHBACK OF FLAME THEREBENEATH, A SEPARATE MULTIPORT FEED PLATE WHICH ARRESTS FLASHBACK OF FLAME THERETHROUGH, AND A MULTIPORT REFRACTORY CERAMIC COMBUSTION PLATE WHICH PROMOTES SURFACE COMBUSTION OF REACTANT GASES WITHIN THE PORTS THEREOF AS SAID GASES PASS THERETHROUGH, SAID COMBUSTION PLATE BEING BETWEEN APPROXIMATELY 1/8 INCH AND 2 INCHES THICK, HAVING A SUPERFICIAL SURFACE VALUE BETWEEN ABOUT 5 AND 75, AND BEING SPACED BETWEEN SAID RADIATION PLATE AND FEED PLATE WITHIN A CONFINED COMBUSTION ZONE, THE ARRANGEMENT OF SAID PLATES WITHIN SAID GAS BURNER ASSEMBLY BEING SUCH THAT SUBSTANTIALLY ALL GASEOUS MATERIAL FLOWING THROUGH THE GAS BURNER ASSEMBLY MUST FLOW THROUGH EACH OF SAID PLATES.
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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) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |