Patent US4690635A successfully refreshed from Google Patents.
US4690635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature burner assembly
Assignee: Maxon Corp
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Filing: 1986-07-21
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Granted: 1987-09-01
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Expires: 2006-07-21
Abstract
Abstract The high-temperature burner assembly of the present invention includes an oxygen containing nozzle body which has a gas conduit insert disposed therein. The gas conduit insert includes a gas conduit insert tip which has a substantially flat exterior tip face with a frusto-conical shaped prominence disposed thereon and protruding from the tip face. The gas conduit insert tip includes a centrally disposed gas channel terminating at the proximal end of the frusto-conical shaped prominence to form a knife edge to provide reduced available surface for accumulation of carbon and for briefly delaying the combustion. An oxygen expelling orifice is concentrically disposed about the frusto-conical shaped prominence for directing oxygen therefrom to mix with the gaseous fuel for combustion within a refractory burner block.
Inventors
- 👤 William Coppin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:47
CPC Classifications
F; F23; F23M; F23M5/00; F23M5/02; F23M5/025; F23D; F23D14/00; F23D14/20; F23D14/22; F23D14/32
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
179 words
In a high temperature burner assembly having a nozzle body for containing and conveying oxygen, a gas conduit disposed within the nozzle body and having means for directing a gaseous fuel therethrough to be expelled from the conduit and to mix with the oxygen for burning in a sustainable flame, and for use in association with a refractory burner block for substantially containing such flame, the improvement comprising: a gas conduit tip connected to the gas conduit and including a substantially flat exteriorly disposed tip face, said tip face having a substantially frusto-conical shaped prominence disposed on and protruding from said tip face; said gas conduit tip having a central gas channel centrally disposed therethrough and terminating at the proximal end of said frusto-conical shaped prominence to form substantially a knife edge shaped rim for briefly delaying combustion and to provide no substantial available surface for carbon accumulation thereon; and primary oxygen expelling orifice means opening concentrically about the base of said frusto-conical shaped prominence for directing oxygen outwardly therefrom to mix with the gaseous fuel for initial combustion.
Claim 2
Dependent Claim
179 words
In a high temperature burner assembly having a nozzle body for containing and conveying oxygen, a gas conduit disposed within the nozzle body and having means for directing a gaseous fuel therethrough to be expelled from the conduit and to mix with the oxygen for burning in a sustainable flame, and for use in association with a refractory burner block for substantially containing such flame, the improvement comprising: a gas conduit tip connected to the gas conduit and including a substantially flat exteriorly disposed tip face, said tip face having a substantially frusto-conical shaped prominence disposed on and protruding from said tip face; said gas conduit tip having a central gas channel centrally disposed therethrough and terminating at the proximal end of said frusto-conical shaped prominence to form substantially a knife edge shaped rim for briefly delaying combustion and to provide no substantial available surface for carbon accumulation thereon; and primary oxygen expelling orifice means opening concentrically about the base of said frusto-conical shaped prominence for directing oxygen outwardly therefrom to mix with the gaseous fuel for initial combustion.
Claim 3
Dependent Claim
30 words
The improvement of claim 1 wherein said oxygen expelling orifice means comprises a plurality of oxygen holes each having a diameter substantially smaller than that of said central gas channel.
Claim 4
Dependent Claim
25 words
The improvement of claim 2 wherein said oxygen holes are disposed in a circular array which array is substantially concentric with said central gas channel.
Claim 5
Dependent Claim
14 words
The improvement of claim 1 wherein said oxygen holes open onto said tip face.
Claim 6
Dependent Claim
25 words
The improvement of claim 1 wherein said oxygen holes open at the junction of said tip face and said base of said frusto-conical shaped prominence.
Claim 7
Dependent Claim
31 words
The improvement of claim 1 wherein said oxygen expelling orifice means comprises an annularshaped orifice contained in said tip face and disposed substantially concentrically with respect to said central gas channel.
Claim 8
Dependent Claim
39 words
The improvement of claim 1 wherein said oxygen expelling orifice means comprises both a plurality of oxygen holes disposed in a circular array and an annular-shaped orifice, both of which are disposed substantially concentrically with said central gas channel.
Claim 9
Dependent Claim
20 words
The improvement of claim 7 wherein said annular-shaped orifice is disposed concentrically within the circular array of said oxygen holes.
Claim 10
Dependent Claim
27 words
The improvement of claim 1 wherein said refractory block has a central opening therein which substantially conforms to the shape of the flame created by said burner.
Claim 11
Dependent Claim
15 words
The improvement of claim 1 wherein such combustion is substantially within the refractory burner block.
Claim 12
Dependent Claim
31 words
The improvement of claim 1 wherein the opening of said central gas channel is disposed in a plane spaced at a selected distance away from the plane of said tip face.
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) | 1990-08-31 | 1991-03-02 | 1991-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-31 | 1995-03-02 | 1995-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-31 | 1999-03-02 | 1999-09-01 | $7700.00 | Window Closed / Lapsed |