Patent US3644077A successfully refreshed from Google Patents.
US3644077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame stabilizing system for power gas burners
Assignee: S I Johnson Co
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Filing: 1970-11-02
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Granted: 1972-02-22
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Expires: 1990-11-02
Abstract
Abstract A power gas burner having a plurality of circumferentially spaced conventional gas jets directed axially of the burner. A conventional flame retention ring surrounds these gas jets. In accordance with this invention, said ring is provided with a plurality of secondary gas nozzles surrounded by an air supply and arranged circumferentially and disposed axially forwardly of the pure gas jets for introducing excess air to stabilize the flame.
Inventors
- 👤 Enoch Alfred Dimick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:56
CPC Classifications
F; F23; F23D; F23D17/00; F23D17/002; F23D2209/00; F23D2209/20
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
69 words
A burner including a plurality of main gas nozzles disposed concentrically in circumferentially spaced relation about the longitudinal axis of the burner, means delivering gas to said nozzles, an annular flame retention member extending forwardly of the discharge ends of said nozzlEs, means defining a plurality of secondary gas nozzles adjacent the forward end of said member, and means defining air passages for delivering air to adjacent said nozzles.
Claim 2
Dependent Claim
69 words
A burner including a plurality of main gas nozzles disposed concentrically in circumferentially spaced relation about the longitudinal axis of the burner, means delivering gas to said nozzles, an annular flame retention member extending forwardly of the discharge ends of said nozzlEs, means defining a plurality of secondary gas nozzles adjacent the forward end of said member, and means defining air passages for delivering air to adjacent said nozzles.
Claim 3
Dependent Claim
22 words
A burner as set forth in claim 1 in which said secondary gas nozzles are operatively connected to said gas delivering means.
Claim 4
Dependent Claim
33 words
A burner as set forth in claim 1 in which said gas delivering means includes a gas manifold, and each of said main and secondary nozzles being in flow communication with said manifold.
Claim 5
Dependent Claim
51 words
A burner as set forth in claim 1 in which said member includes an outwardly and forwardly diverging portion extending from the ends of said main nozzles and substantially encompassing the same, and said secondary gas nozzles comprising axially disposed tubes extending from said gas delivering means through said diverging portion.
Claim 6
Dependent Claim
46 words
A burner as set forth in claim 4 in which said diverging portion is provided with a plurality of axial apertures for receiving the forward ends of said tubes in loose relationship whereby an airflow space is provided between said apertures and the tubes extending therethrough.
Claim 7
Dependent Claim
23 words
A burner as set forth in claim 1 in which said main gas nozzles have a larger discharge diameter than said secondary nozzles.
Claim 8
Dependent Claim
45 words
A burner as set forth in claim 6 in which there are a larger number of main gas nozzles than secondary gas nozzles, and in which said latter nozzles are circumferentially spaced about said burner axis on a larger diameter than said main gas nozzles.
Claim 9
Dependent Claim
30 words
A burner as set forth in claim 5 in which said diverging portion is formed from a plurality of overlapping plates defining space therebetween for the passage of air therethrough.
Claim 10
Dependent Claim
19 words
A burner as set forth in claim 8 in which each of said plates has a tube extending therethrough.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |