Patent US3149613A successfully refreshed from Google Patents.
US3149613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water cooled concentric nozzles for a burner
Assignee: Hitachi Zosen Inova Steinmueller GmbH
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Filing: 1962-01-10
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Granted: 1964-09-22
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Expires: 1982-01-10
Abstract
No abstract record available.
Inventors
- 👤 Anschutz Otto
- 👤 Rudolph Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:07
CPC Classifications
F; F23; F23D; F23D1/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
125 words
A BURNER FOR A BOILER FIRING SYSTEM, SAID BURNER COMPRISING NOZZLE MEANS INCLUDING FIRST NOZZLE MEANS FOR CONDUCTING GAS AND SECOND NOZZLE MEANS FOR CONDUCTING FUEL AND SURROUNDING SAID FIRST NOZZLE MEANS, SAID NOZZLE MEANS TERMINATING IN MOUTH PORTIONS, COOLING COILS ASSOCIATED WITH THE MOUTH PORTIONS OF SAID NOZZLE MEANS, THE COOLING COILS ASSOCIATED WITH SAID FIRST NOZZLE MEANS BEING LOCATED INSIDE THE MOUTH PORTION OF SAID FIRST NOZZLE MEANS, AND THE COILS ASSOCIATED WITH SAID SECOND NOZZLE MEANS BEING LOCATED OUTSIDE THE MOUTH PORTION OF THE SECOND NOZZLE MEANS SO AS TO BE CONFINED ON ONE SIDE BY THE SECOND NOZZLE MEANS, AND GUIDE PLATES CONNECTED TO SAID SECOND NOZZLE MEANS AND BEING DISPOSED OVER THE COOLING COILS PERTAINING TO THE SECOND NOZZLE MEANS.
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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |