US3799734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion device
Assignee: Individual
•
Filing: 1973-05-03
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Granted: 1974-03-26
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Expires: 1993-05-03
Abstract
Abstract A combustion device having a chamber for passage of the products of combustion therethrough and having a surrounding wall for heat transfer through said wall to external media. The combustion chamber has inlet and outlet means at opposite ends thereof with orifice plates extending transversely of the combustion chamber, which orifice plates have their peripheries secured directly in circumferentially spaced segments to the inner face of the surrounding wall, leaving minute segments between the secured segments for small amounts of combustion particles or gases to leak therethrough into the particles or gases passing through the orifice plates, thereby materially increasing the efficiency of the combustion of the burning gases.
Inventors
- 👤 J Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:10
CPC Classifications
F; F23; F23C; F23C99/00; F23M; F23M9/00; F23M9/06; F24; F24H; F24H9/00; F24H9/0005; F24H9/001; F24H9/0026; F23C2700/00; F23C2700/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
104 words
A fuel burner comprising a combustion chamber having a surrounding wall and an inlet at one end a an outlet at the opposite end, an intermediate plate therein spaced from the inlet and outlet, said plate extending transversely to the surrounding wall of the combustion chamber and defining with said surrounding wall enlarged expansion chambers, said plate having a substantially central orifice therein and having a surrounding edge substantially abutting against the surrounding wall of the combustion chamber, and means for securing said surrounding edge of the plate to the inner face of the surrounding wall along circumferentially spaced segments of the surrounding edge.
Claim 2
Dependent Claim
104 words
A fuel burner comprising a combustion chamber having a surrounding wall and an inlet at one end a an outlet at the opposite end, an intermediate plate therein spaced from the inlet and outlet, said plate extending transversely to the surrounding wall of the combustion chamber and defining with said surrounding wall enlarged expansion chambers, said plate having a substantially central orifice therein and having a surrounding edge substantially abutting against the surrounding wall of the combustion chamber, and means for securing said surrounding edge of the plate to the inner face of the surrounding wall along circumferentially spaced segments of the surrounding edge.
Claim 3
Dependent Claim
30 words
A fuel burner according to claim 1, wherein the securing means comprises welding extending along circumferential segments of the surrounding edge and spaced from adjacent segments of the surrounding edge.
Claim 4
Dependent Claim
53 words
A fuel burner according to claim 1, wherein a plurality of intermediate plates are provided spaced from each other along the length of the combustion chamber, each having a substantially central opening and with a surroundiNg edge substantially abutting against the surrounding wall of the combustion chamber and secured thereto along spaced segments.
Claim 5
Dependent Claim
21 words
A fuel burner according to claim 3, wherein the intermediate plates are frusto-conical and the central orifices are restricted and aligned.
Claim 6
Dependent Claim
33 words
A fuel burner according to claim 1, wherein the spaces between the securing means provide minute leak-by passages for small amounts of combustion gases to pass from one expansion chamber to the next.
Claim 7
Dependent Claim
69 words
A fuel burner according to claim 1, including burner means at the inlet end of the combustion chamber having means for supplying air and fuel thereto and whereby burning gases pass through the orifice in the transverse plate from one expansion chamber to another, the spaces between the securing means providing minute leak-by passages for small amounts of combustion gases to pass from one expansion chamber to the next.
Claim 8
Dependent Claim
130 words
A fuel burner comprising a combustion chamber having a surrounding wall and having an inlet at one end and an outlet at the opposite end, a plurality of intermediate plates therein spaced from the inlet and outlet and from each other, said plates extending transversely to the surrounding wall and defining with said surrounding wall enlarged expansion chambers, each of said plates having a substantially central orifice therein and having a surrounding edge extending along the inner surface of the surrounding wall of the combustion chamber, means for securing the surrounding edge of each plate along spaced segments in substantially airtight relation and with the spaces between the segments unsecured and providing substantially minute leak-by passages for small amounts of combustion gases to pass from one expansion chamber to another.
Claim 9
Dependent Claim
130 words
A fuel burner comprising a combustion chamber having a surrounding wall and having an inlet at one end and an outlet at the opposite end, a plurality of intermediate plates therein spaced from the inlet and outlet and from each other, said plates extending transversely to the surrounding wall and defining with said surrounding wall enlarged expansion chambers, each of said plates having a substantially central orifice therein and having a surrounding edge extending along the inner surface of the surrounding wall of the combustion chamber, means for securing the surrounding edge of each plate along spaced segments in substantially airtight relation and with the spaces between the segments unsecured and providing substantially minute leak-by passages for small amounts of combustion gases to pass from one expansion chamber to another.
Claim 10
Dependent Claim
93 words
A fuel burner according to claim 7, including burner means at the inlet end of the combustion chamber having means for supplying air and fuel thereto under pressure whereby burning gases at high velocity pass through the first orifice into the first expansion chamber, are reduced in pressure and increased in velocity and changed in direction again to pass out through the next orifice plate with consequent exit velocity, the small amounts of gases passing through the leak-by passages being directed into the burning gases after passage through the orifice in the plate.
Claim 11
Dependent Claim
19 words
A fuel burner according to claim 7, wherein the plates are frusto-conical and have constricted orifices in axial alignment.
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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |