US3687602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas burners
Assignee: Engie SA
•
Filing: 1971-04-30
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Granted: 1972-08-29
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Expires: 1991-04-30
Abstract
Abstract A gas burner which provides between the exit orifices and the ignition level a free path for gas jets emanating from the orifices to ensure sufficient aeration of the gas jets. The burner comprises a casing connectible to a gas supply and having a number of gas exit orifices provided therein. Above these orifices there is provided a distributor body presenting a distribution wall inclined relative to the axes of the exit orifices and with its upper edge disposed at least approximately in the plane defined by the axis of the exit orifices. This edge forms part of a ledge whereof at least the major part is on the same side as the orifices and above the distribution wall. The ledge and distribution wall subtend an acute angle at said edge and the other edge of the ledge terminates in a low wall substantially perpendicular to the ledge and parallel with the edge.
Inventors
- 👤 Roger Vignes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:19
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/70; F23D14/20; F23D14/72; F23D14/74
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
170 words
A gas burner of the type ensuring air and gas mixture by induction and diffusion around a jet of free gas and comprising a casing connected to a source of combustible gas, a number of gas exit orifices provided in the casing and a distribution wall inclined relative to the axes of the exit orifices and which at its upper end and opposite the exit orifices terminates in an edge disposed above the casing and the exit orifices, the upper edge of the distribution wall being located at least approximately in the path defined by the axes of the exit orifices and being adjacent a ledge whereof at least the major part of the ledge is disposed to one side of said part and above the distribution wall, the said ledge subtending an acute angle with the distribution wall at said edge, and said ledge at the side opposite the edge terminating in a low wall which is at least approximately perpendicular to the ledge and parallel to the edge.
Claim 2
Dependent Claim
170 words
A gas burner of the type ensuring air and gas mixture by induction and diffusion around a jet of free gas and comprising a casing connected to a source of combustible gas, a number of gas exit orifices provided in the casing and a distribution wall inclined relative to the axes of the exit orifices and which at its upper end and opposite the exit orifices terminates in an edge disposed above the casing and the exit orifices, the upper edge of the distribution wall being located at least approximately in the path defined by the axes of the exit orifices and being adjacent a ledge whereof at least the major part of the ledge is disposed to one side of said part and above the distribution wall, the said ledge subtending an acute angle with the distribution wall at said edge, and said ledge at the side opposite the edge terminating in a low wall which is at least approximately perpendicular to the ledge and parallel to the edge.
Claim 3
Dependent Claim
28 words
A burner according to claim 1, in which the distribution wall subtends with the axis of the exit orifices an acute angle between 5* and 30*, preferably 10*.
Claim 4
Dependent Claim
68 words
A burner according to claim 1 in which the distribution wall presents a plain surface and has a rectilinear ledge adjacent its upper edge, the distribution wall resting on a casing connected to a feed pipe for combustible gas and being in the form of a hollow rail provided with a number of exit orifices aligned in a straight line with the sharp edge of the distribution wall.
Claim 5
Dependent Claim
69 words
A burner according to claim 1 comprising two distribution walls inclined relative to one another and converging towards the casing, which is provided with two rows of exit orifices, whereof the axes coincide with the sharp edge of the corresponding distribution walls, the ledges and the low walls being rectilinear and directed away from the axes of the orifices and the distribution wall being located opposite the corresponding orifices.
Claim 6
Dependent Claim
97 words
A burner according to claim 1 in which the distribution wall is constituted by a truncated cone, whereof the small end is fixed on the upper surface of the casing and whereof the large end provides, at its outer edge, the sharp edge coinciding with the axes of the gas exit orifices which are disposed in a circle in the upper surface of the casing, the ledge extending inwardly from the external edge of the large end of the truncated cone and being of annular form and terminating at its other edge in a low cylindrical wall.
Claim 7
Dependent Claim
17 words
A burner according to claim 1 in which the distribution wall is constituted by a solid member.
Claim 8
Dependent Claim
16 words
A burner according to claim 1 in which the distribution wall is constituted by sheet metal.
Claim 9
Dependent Claim
20 words
A burner according to claim 1, in which the distribution wall, the ledge and the low cylindrical wall are annular.
Claim 10
Dependent Claim
63 words
A burner according to claim 1, in which the exit orifices are provided in the upper surface of the casing which is in the form of a hollow annular rail supporting inside the circle of orifices a distribution wall of truncated form and being coupled at its periphery to a feed pipe which extends tangentially into the chamber defined by the annular rail.
Claim 11
Dependent Claim
44 words
A burner according to claim 1 in which the low wall remote from the sharp edge of the distribution wall is provided at its upper end with a flange protruding slightly out from the low wall so as to overly part of the ledge.
Claim 12
Dependent Claim
55 words
A burner according to claim 1 in which the distribution wall is disposed outside and beneath the axes of the exit orifices coinciding with the sharp edge of the distribution wall, the lower end Of the distribution wall being spaced from the exit orifices so as to allow free access of air to the orifices.
Claim 13
Dependent Claim
121 words
A burner according to claim 1, in which the distribution wall the ledge and the low wall constitute internal faces of a ring and form truncated cones, whereof the axes are coaxial to the axis of the upper conical surface of the casing and the circular series of exit orifices formed in said upper surface, the axes of the exit orifices defining generatrices of a cone whereof the base coincides with that of the distribution wall and which is located inside the cone determined by the distribution wall, the distribution wall being fixed by support feet to a support surface to provide a passage for air between the lower end of the distribution wall and the upper surface of the casing.
Claim 14
Dependent Claim
39 words
A burner according to claim 1 in which the lower end of the distribution wall is fixed on the casing through the intermediary of an extension member whereof the external face forms an obtuse angle with the distribution wall.
Claim 15
Dependent Claim
23 words
A burner according to claim 13, in which the extension member is constituted by legs fixed on the casing between two adjacent orifices.
Claim 16
Dependent Claim
35 words
A burner according to claim 1 in which the width of the ledge and the height of the wall limiting the ledge at the side opposite the sharp edge are substantially equal to one another.
Claim 17
Dependent Claim
27 words
A burner according to claim 1 in which the distance between two adjacent exit orifices is equal to at least three times the width of the ledge.
Claim 18
Dependent Claim
30 words
A burner according to claim 1 in which the distance between an exit orifice and the sharp edge is equal to at least eight times the width of the ledge.
Claim 19
Dependent Claim
26 words
A burner according to claim 1 to 17, in which the axes of the exit orifices is inclined relative to the general axis of the burner.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |