Patent FR722397A successfully refreshed from Google Patents.
Patent US4013397A successfully refreshed from Google Patents.
US4013397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion apparatus
Assignee: Individual
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Filing: 1975-12-05
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Granted: 1977-03-22
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Expires: 1995-12-05
Abstract
Abstract The present invention is directed to a combustion apparatus particularly intended for use with fuels which are solid at normal ambient temperatures but are readily meltable at temperatures somewhat exceeding ambient, the fuels being combustible in their molten state. An example of a preferred form of fuel is paraffin. The apparatus preferably includes a two part plate assembly adapted to float upon molten fuel, the plate assembly being centrally apertured and provided with a wick extending through the aperture, the heat developed by combustion by the wick being transmitted through the conductive plate assembly to heat and thereby melt a supply of fuel directly below the assembly.
Inventors
- 👤 Fernando M. Neugart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:45
CPC Classifications
F; F23; F23D; F23D3/00; F23D3/02; F23D3/18; F23D3/24; F23D3/16
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
193 words
A combustion apparatus for use with a fuel such as a low temperature, meltable, solid fuel, comprising in combination, a conductor plate formed of metal and having a high thermal conductivity factor, said plate including a central aperture extending transversely therethrough, said plate including a substantially flat bottom portion, an outer perimeter portion, and an integral heat collector rim extending upwardly from the upper surface of said plate surrounding said aperture, wick means extending through said aperture and including an upper end in adjacent proximate open spaced relation to said heat collector rim and said plate bottom and a lower end disposed beneath said bottom surface of said plate, wick holder means mounted in said aperture of said conductor plate for holding said wick means, and a centrally apertured cover plate member, means securing said cover plate member to said conductor plate in overlying relation to the upper surface of said conductor plate with the aperture of said cover plate surrounding said rim, portions of the under surface of said cover plate being spaced from the upper surface of said conductor plate, thereby to form a closed hollow insulating compartment between said plates.
Claim 2
Dependent Claim
193 words
A combustion apparatus for use with a fuel such as a low temperature, meltable, solid fuel, comprising in combination, a conductor plate formed of metal and having a high thermal conductivity factor, said plate including a central aperture extending transversely therethrough, said plate including a substantially flat bottom portion, an outer perimeter portion, and an integral heat collector rim extending upwardly from the upper surface of said plate surrounding said aperture, wick means extending through said aperture and including an upper end in adjacent proximate open spaced relation to said heat collector rim and said plate bottom and a lower end disposed beneath said bottom surface of said plate, wick holder means mounted in said aperture of said conductor plate for holding said wick means, and a centrally apertured cover plate member, means securing said cover plate member to said conductor plate in overlying relation to the upper surface of said conductor plate with the aperture of said cover plate surrounding said rim, portions of the under surface of said cover plate being spaced from the upper surface of said conductor plate, thereby to form a closed hollow insulating compartment between said plates.
Claim 3
Dependent Claim
17 words
Apparatus in accordance with claim 1 wherein said wick holder member is formed of thermally conductive metal.
Claim 4
Dependent Claim
39 words
Apparatus in accordance with claim 1 wherein said outer perimeter portion of said conductor plate extends upwardly from the surface of said plate and outwardly laps the periphery of said cover plate forming a part of said securing means.
Claim 5
Dependent Claim
26 words
Apparatus in accordance with claim 3 wherein said hollow insulating compartment between said plates is filled with a low density, non-flammable material such as glass wool.
Claim 6
Dependent Claim
43 words
Apparatus in accordance with claim 1 wherein said collector rim of said conductor plate extends upwardly through and is lapped over said central aperture of said cover plate forming a part of said securing means thereby to maintain said plates in interconnected relation.
Claim 7
Dependent Claim
39 words
Apparatus in accordance with claim 5 wherein the outer perimeter portion of said conductor plate includes an upwardly extending portion outwardly lapping and crimped over the upper surface of said cover plate forming a part of said securing means.
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) | 1980-03-21 | 1980-09-20 | 1981-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-21 | 1984-09-20 | 1985-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-21 | 1988-09-20 | 1989-03-22 | $7700.00 | Window Closed / Lapsed |