US4076490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fireplace system
Assignee: Individual
•
Filing: 1976-12-01
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Granted: 1978-02-28
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Expires: 1996-12-01
Abstract
Abstract A noncombustible artificial log and method for simulating combustion thereof, wherein the artificial log is provided with fuel retaining recesses disposed at spaced axial locations therealong for receiving a readily combustible supply of fuel therein. The recesses are sufficiently deep so as to retain a supply of fuel therein which has a long burn duration. The recesses have a diameter which is small relative to the overall diameter of the artificial log.
Inventors
- 👤 Gloria D. Hilker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:12
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/18; F24B1/1808; F24C; F24C3/00; F24C3/002; F24C3/006; F24C5/00; F24C5/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
101 words
A noncombustible artificial log comprising a substantially hollow tubular ceramic structure with an outer peripheral surface, fuel retaining recesses disposed at spaced axial locations along the upper solid portion of said outer peripheral surface for receiving a supply of readily combustible fuel therein at a recessed level below the normal artificial log peripheral surface, and with the fuel having a burn duration of reasonable magnitude, said recesses having a diameter which is small relative to the diameter of the hollow tubular artificial log structure and each of said recesses having a side wall and a bottom surface for retaining said fuel.
Claim 2
Dependent Claim
101 words
A noncombustible artificial log comprising a substantially hollow tubular ceramic structure with an outer peripheral surface, fuel retaining recesses disposed at spaced axial locations along the upper solid portion of said outer peripheral surface for receiving a supply of readily combustible fuel therein at a recessed level below the normal artificial log peripheral surface, and with the fuel having a burn duration of reasonable magnitude, said recesses having a diameter which is small relative to the diameter of the hollow tubular artificial log structure and each of said recesses having a side wall and a bottom surface for retaining said fuel.
Claim 3
Dependent Claim
31 words
The noncombustible artificial log as defined in claim 1 being particularly characterized in that said artificial log is a hollow ceramic structure with a wall thickness thereof being substantially uniform throughout.
Claim 4
Dependent Claim
27 words
The noncombustible artificial log as defined in claim 1 being particularly characterized in that said noncombustible artificial log contains at least three spaced apart fuel receiving recesses.
Claim 5
Dependent Claim
109 words
In combination, a noncombustible artificial log with fuel receptacles formed therein, said artificial log comprising a hollow tubular ceramic structure having fuel retaining recesses disposed at spaced axial locations along the upper solid surface thereof for receiving a supply of readily combustible fuel therein at a recessed level below the normal artificial log surface, with the fuel being received in sufficient quantity so as to provide a burn duration of reasonable magnitude, said recesses having a diameter which is small relative to the diameter of the artificial log, each of said recesses having a side wall and a bottom surface and fuel containing receptacles being received within said recesses.
Claim 6
Dependent Claim
109 words
In combination, a noncombustible artificial log with fuel receptacles formed therein, said artificial log comprising a hollow tubular ceramic structure having fuel retaining recesses disposed at spaced axial locations along the upper solid surface thereof for receiving a supply of readily combustible fuel therein at a recessed level below the normal artificial log surface, with the fuel being received in sufficient quantity so as to provide a burn duration of reasonable magnitude, said recesses having a diameter which is small relative to the diameter of the artificial log, each of said recesses having a side wall and a bottom surface and fuel containing receptacles being received within said recesses.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-27 | 1981-08-29 | 1982-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-27 | 1985-08-29 | 1986-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-27 | 1989-08-29 | 1990-02-28 | $7700.00 | Window Closed / Lapsed |