Patent US1356236A successfully refreshed from Google Patents.
Patent US3942939A successfully refreshed from Google Patents.
US3942939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flat flame burner
Assignee: Osaka Gas Co Ltd
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Filing: 1973-03-26
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Granted: 1976-03-09
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Expires: 1993-03-26
Abstract
Abstract A flat flame burner comprises an air swirling chamber, an air supply tube provided for the air chamber for introducing combustion air thereinto in the peripheral direction of the air chamber so as to produce a swirling air stream in the chamber, a fuel gas supply tube disposed in the air chamber and having inlets centrally of the space for the swirling air stream and a flame opening positioned at one side in the direction of axis of the swirling air stream coaxially with the swirling air stream, the flame opening being defined by a wall having a thin portion around said opening and a flat outer face.
Inventors
- 👤 Yuji Matsumura
- 👤 Hiroyuki Mitsudomi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:41
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/66; F23C; F23C5/00; F23C5/08; F23C5/14; F23D14/02; F23D2206/00; F23D2206/0094; F23D2900/00; F23D2900/00011; Y; Y02; Y02E; Y02E20/00; Y02E20/34
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
107 words
A burner comprising a housing provided with a planar exterior wall having a first perforation, means defining a second opening in the housing in axial alignment with said first perforation, gas conduit means having an inner terminal portion coaxial with the said second opening in the housing, said conduit further including plural outlets spaced from the terminus, and inlet means to introduce continuously swirling combustion air into said housing exteriorly of said gas inlet conduit wherein an inner peripheral wall defining said first perforation has an axial dimension smaller than a radial dimension in order to form a flat flame spreading outwardly over said planar exterior wall.
Claim 2
Dependent Claim
107 words
A burner comprising a housing provided with a planar exterior wall having a first perforation, means defining a second opening in the housing in axial alignment with said first perforation, gas conduit means having an inner terminal portion coaxial with the said second opening in the housing, said conduit further including plural outlets spaced from the terminus, and inlet means to introduce continuously swirling combustion air into said housing exteriorly of said gas inlet conduit wherein an inner peripheral wall defining said first perforation has an axial dimension smaller than a radial dimension in order to form a flat flame spreading outwardly over said planar exterior wall.
Claim 3
Dependent Claim
21 words
A burner as claimed in claim 1, wherein an exhaust cylinder is concentric with said terminal portion of said gas inlet.
Claim 4
Dependent Claim
104 words
A burner comprising a housing provided with a first perforated planar exterior wall, means defining a second opening in the housing in axial alignment with the perforation in said wall, gas conduit means having an inner terminal portion coaxial with the said second opening in the housing, said conduit further including plural outlets spaced from the terminus, inlet means to introduce continuously swirling combustion air into said housing exteriorly of said gas inlet conduit, flame control means embodied with the first perforate wall to form a flame having a predetermined characteristic, and an exhaust cylinder concentric with said terminal portion of said gas inlet.
Claim 5
Dependent Claim
104 words
A burner comprising a housing provided with a first perforated planar exterior wall, means defining a second opening in the housing in axial alignment with the perforation in said wall, gas conduit means having an inner terminal portion coaxial with the said second opening in the housing, said conduit further including plural outlets spaced from the terminus, inlet means to introduce continuously swirling combustion air into said housing exteriorly of said gas inlet conduit, flame control means embodied with the first perforate wall to form a flame having a predetermined characteristic, and an exhaust cylinder concentric with said terminal portion of said gas inlet.
Claim 6
Dependent Claim
105 words
A burner comprising a housing provided with a first perforated planar exterior wall, means defining a second opening in the housing in axial alignment with the performation in said wall, gas conduit means having an inner terminal portion coaxial with the said second opening in the housing, said conduit further including plural outlets spaced from the terminus, inlet means to introduce continuously swirling combustion air into said housing exteriorly of said gas inlet conduit, flame control means embodied with the first perforate wall to form a flame having a predetermined characteristic and collar means disposed concentric with the terminal portion of said gas inlet conduit.
Claim 7
Dependent Claim
105 words
A burner comprising a housing provided with a first perforated planar exterior wall, means defining a second opening in the housing in axial alignment with the performation in said wall, gas conduit means having an inner terminal portion coaxial with the said second opening in the housing, said conduit further including plural outlets spaced from the terminus, inlet means to introduce continuously swirling combustion air into said housing exteriorly of said gas inlet conduit, flame control means embodied with the first perforate wall to form a flame having a predetermined characteristic and collar means disposed concentric with the terminal portion of said gas inlet conduit.
Claim 8
Dependent Claim
111 words
A burner comprising a housing provided with a first perforated planar exterior wall, means defining a second opening in the housing in axial alignment with the performation in said wall, gas conduit means having an inner terminal portion coaxial with the said second opening in the housing, said conduit further including plural outlets spaced from the terminus, inlet means to introduce continuously swirling combustion air into said housing exteriorly of said gas inlet conduit, flame control means embodied with the first perforate wall to form a flame having a predetermined characteristic, and an axially apertured plate means disposed in spaced relation to said first perforated flat exterior wall of said housing.
Claim 9
Dependent Claim
111 words
A burner comprising a housing provided with a first perforated planar exterior wall, means defining a second opening in the housing in axial alignment with the performation in said wall, gas conduit means having an inner terminal portion coaxial with the said second opening in the housing, said conduit further including plural outlets spaced from the terminus, inlet means to introduce continuously swirling combustion air into said housing exteriorly of said gas inlet conduit, flame control means embodied with the first perforate wall to form a flame having a predetermined characteristic, and an axially apertured plate means disposed in spaced relation to said first perforated flat exterior wall of said housing.
Claim 10
Dependent Claim
99 words
A burner comprising a housing provided with a first perforated planar exterior wall including a throat area which diverges outwardly, means defining a second opening in the housing in axial alignment with the perforation in said wall, gas conduit means having an inner terminal portion coaxial with the said second opening in the housing, said conduit further including plural outlets spaced from the terminus, inlet means to introduce continuously swirling combustion air into said housing exteriorly of said gas inlet conduit and flame control means embodied with the first perforate wall to form a flame having a predetermined characteristic.
Claim 11
Dependent Claim
99 words
A burner comprising a housing provided with a first perforated planar exterior wall including a throat area which diverges outwardly, means defining a second opening in the housing in axial alignment with the perforation in said wall, gas conduit means having an inner terminal portion coaxial with the said second opening in the housing, said conduit further including plural outlets spaced from the terminus, inlet means to introduce continuously swirling combustion air into said housing exteriorly of said gas inlet conduit and flame control means embodied with the first perforate wall to form a flame having a predetermined characteristic.
Claim 12
Dependent Claim
99 words
A burner comprising a housing provided with a first perforated planar exterior wall including a throat area which converges inwardly, means defining a second opening in the housing in axial alignment with the perforation in said wall, gas conduit means having an inner terminal portion coaxial with the said second opening in the housing, said conduit further including plural outlets spaced from the terminus, inlet means to introduce continuously swirling combustion air into said housing exteriorly of said gas inlet conduit and flame control means embodied with the first perforate wall to form a flame having a predetermined characteristic.
Claim 13
Dependent Claim
99 words
A burner comprising a housing provided with a first perforated planar exterior wall including a throat area which converges inwardly, means defining a second opening in the housing in axial alignment with the perforation in said wall, gas conduit means having an inner terminal portion coaxial with the said second opening in the housing, said conduit further including plural outlets spaced from the terminus, inlet means to introduce continuously swirling combustion air into said housing exteriorly of said gas inlet conduit and flame control means embodied with the first perforate wall to form a flame having a predetermined characteristic.
Claim 14
Dependent Claim
112 words
A burner comprising a housing provided with a first perforated planar exterior wall, means defining a second opening in the housing in axial alignment with the perforation in said wall, gas conduit means having an inner terminal portion coaxial with the said second opening in the housing, said conduit further including plural outlets spaced from the terminus, inlet means to introduce continuously swirling combustion air into said housing exteriorly of said gas inlet conduit and flame control means embodied with the first perforate wall to form a flame having a predetermined characteristic, wherein the combustion air inlet means includes curved baffle means serving to divide the incoming air into two separate streams.
Claim 15
Dependent Claim
112 words
A burner comprising a housing provided with a first perforated planar exterior wall, means defining a second opening in the housing in axial alignment with the perforation in said wall, gas conduit means having an inner terminal portion coaxial with the said second opening in the housing, said conduit further including plural outlets spaced from the terminus, inlet means to introduce continuously swirling combustion air into said housing exteriorly of said gas inlet conduit and flame control means embodied with the first perforate wall to form a flame having a predetermined characteristic, wherein the combustion air inlet means includes curved baffle means serving to divide the incoming air into two separate streams.
Claim 16
Dependent Claim
16 words
A burner as claimed in claim 3, wherein the exhaust cylinder communicates with a heat exchanger.
Claim 17
Dependent Claim
18 words
A burner as claimed in claim 9, wherein the heat exchanger is concentrically disposed within the burner housing.
Claim 18
Dependent Claim
23 words
A burner as claimed in claim 1, wherein a collar means is disposed concentric with the terminal portion of said gas inlet conduit.
Claim 19
Dependent Claim
17 words
A burner as claimed in claim 3, wherein a collar means is concentric with said exhaust cylinder.
Claim 20
Dependent Claim
28 words
A burner as claimed in claim 1, wherein an axially apertured plate means is disposed in spaced relation to said first perforated flat exterior wall of said housing.
Claim 21
Dependent Claim
21 words
A burner as claimed in claim 5, wherein a supplemental air inlet means is associated with the axially apertured plate means.
Claim 22
Dependent Claim
18 words
A burner as claimed in claim 5, wherein the axially apertured plate means consists of a refractory material.
Claim 23
Dependent Claim
30 words
A burner as claimed in claim 5, wherein the axially apertured plate means forms one wall of a supplemental housing which further includes combustion air and gaseous fuel supply means.
Claim 24
Dependent Claim
16 words
A burner as claimed in claim 10, wherein the heat exchanger shrouds a baffle-type deflector means.
Claim 25
Dependent Claim
21 words
A burner as claimed in claim 1, wherein the first perforated planar exterior wall includes a throat area which diverges outwardly.
Claim 26
Dependent Claim
21 words
A burner as claimed in claim 1, wherein the first perforated planar exterior wall includes a throat area which converges inwardly.
Claim 27
Dependent Claim
27 words
A burner as claimed in claim 1, wherein the combustion air inlet means includes curved baffle means serving to divide the incoming air into two separate streams.
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) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |