US3352347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic refractory flame retention nozzle
Assignee: Eisenmann Corp
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Filing: 1963-10-30
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Granted: 1967-11-14
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Expires: 1983-10-30
Abstract
No abstract record available.
Inventors
- 👤 James T Robson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:33
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
IN A FLAME RETENTION NOZZLE COMPRISING A UNITARY, NON-PERFORATE TUBULAR HOUSING A FUEL INLET END AND A FLAME DISCHARGE END, SAID NOZZLE HAVING DISPOSED WITHIN ITS INTERIOR, BETWEEN SAID TWO ENDS, AND GENERALLY AT RIGHT ANGLES TO THE LONG AXIS OF SAID HOUSING, A PERFORATE DIAPHRAGM INTEGRAL WITH SAID TUBULAR HOUSING, SAID DIAPHRAGM HAVING A CENTRALLY LOCATED APERTURE HAVING A DIAMETER AT LEAST ONE THIRD THE INSIDE DIAMETER OF SAID TUBULAR HOUSING, SAID DIAPHRAGM HAVING A MULTIPLICITY OF PERFORATIONS THERETHROUGH SMALLER THAN SAID CENTRALLY LOCATED APERTURE, SAID MUTLIPLICITY OF PERFORATIONS DISTRIBUTED GENERALLY SYMMETRICALLY AROUND SAID APERTURE, SAID NOZZLE COMPOSED OF A CERAMIC REFRACTORY.
Claim 2
Dependent Claim
103 words
IN A FLAME RETENTION NOZZLE COMPRISING A UNITARY, NON-PERFORATE TUBULAR HOUSING A FUEL INLET END AND A FLAME DISCHARGE END, SAID NOZZLE HAVING DISPOSED WITHIN ITS INTERIOR, BETWEEN SAID TWO ENDS, AND GENERALLY AT RIGHT ANGLES TO THE LONG AXIS OF SAID HOUSING, A PERFORATE DIAPHRAGM INTEGRAL WITH SAID TUBULAR HOUSING, SAID DIAPHRAGM HAVING A CENTRALLY LOCATED APERTURE HAVING A DIAMETER AT LEAST ONE THIRD THE INSIDE DIAMETER OF SAID TUBULAR HOUSING, SAID DIAPHRAGM HAVING A MULTIPLICITY OF PERFORATIONS THERETHROUGH SMALLER THAN SAID CENTRALLY LOCATED APERTURE, SAID MUTLIPLICITY OF PERFORATIONS DISTRIBUTED GENERALLY SYMMETRICALLY AROUND SAID APERTURE, SAID NOZZLE COMPOSED OF A CERAMIC REFRACTORY.
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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |