Patent US3847536A successfully refreshed from Google Patents.
US3847536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant burner operating at high temperature
Assignee: Antargaz Distribution de Gaz SA
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Filing: 1973-05-03
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Granted: 1974-11-12
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Expires: 1993-05-03
Abstract
Abstract A radiant burner comprises a mixing chamber for a combustible gaseous mixture delimited by an emission plate through which the mixture passes and on the outer surface of which the mixture is ignited, the plate being surmounted by an anti-convection screen. An auxiliary emission plate is provided between the emission plate and the screen, spaced from both emission plate and screen and provided with passages by which the spaces on either face of the axuiliary emission plate are placed in communication.
Inventors
- 👤 L Lepage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:58
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/12; F23D14/14; F23D14/147; F23D14/149; F23D2203/00; F23D2203/10; F23D2203/102
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
127 words
A radiant burner for a combustible gaseous mixture comprising: a box having an inlet for said gaseous mixture and constituting a mixing chamber; an emission plate opposite to said inlet and delimiting said mixing chamber, said emission plate being constituted by ceramic solid plates drilled of passages having a diameter of between 0.40 to 0.70 mm., said passage being adapted to permit flowing of the gaseous mixture therethrough; an auxiliary emission means made of a refractory metal drilled with holes of a larger diameter than the passages in said emission plate, said auxiliary emission means surmounting said emission plate and being spaced from the latter by a peripheral frame supported by said box; and an anti-convection screen spaced from said auxiliary emission means by said peripheral frame.
Claim 2
Dependent Claim
127 words
A radiant burner for a combustible gaseous mixture comprising: a box having an inlet for said gaseous mixture and constituting a mixing chamber; an emission plate opposite to said inlet and delimiting said mixing chamber, said emission plate being constituted by ceramic solid plates drilled of passages having a diameter of between 0.40 to 0.70 mm., said passage being adapted to permit flowing of the gaseous mixture therethrough; an auxiliary emission means made of a refractory metal drilled with holes of a larger diameter than the passages in said emission plate, said auxiliary emission means surmounting said emission plate and being spaced from the latter by a peripheral frame supported by said box; and an anti-convection screen spaced from said auxiliary emission means by said peripheral frame.
Claim 3
Dependent Claim
25 words
A radiant burner according to claim 1 wherein the diameter of the holes drilled in said auxiliary emission means is between 5 to 8 mm.
Claim 4
Dependent Claim
23 words
A radiant burner according to claim 1 wherein the diameter of the holes drilled in said auxiliary emission means is approximately 6 mm.
Claim 5
Dependent Claim
19 words
A radiant burner according to claim 1 wherein the solid/hollow ratio of the auxiliary emission plate is approximately 2.
Claim 6
Dependent Claim
29 words
A burner according to claim 1 wherein the distance separating the emission plate from the auxiliary emission plate is approximately double the distance separating the latter from the screen.
Claim 7
Dependent Claim
37 words
A burner according to claim 1 wherein said peripheral frame supporting said auxiliary emission means has an internal seating structure on which is freely seated said auxiliary emission plate so as to allow dilatation of the latter.
Claim 8
Dependent Claim
33 words
A burner according to claim 1 wherein on the surface of the ceramic solid plate facing said auxiliary emission means are provided grooves, said passages in said ceramic plates opening in said grooves.
Claim 9
Dependent Claim
21 words
A burner according to claim 7 wherein said grooves are 1.5 to 2.5 mm. wide and 1 to 3 mm. deep.
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) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |