US3986488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fireplace
Assignee: Lee Raymond Organization Inc
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Filing: 1975-05-27
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Granted: 1976-10-19
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Expires: 1995-05-27
Abstract
Abstract A generally cylindrical casing is hollow, and is supported by a base so that the axis of the casing axis is horizontal. A vertical partition divides the casing into a fire chamber and a smaller exhaust chamber. The smaller chamber is vented to the outside atmosphere by a chimney. The partition does not completely isolate the chambers, but enables them to be interconnected through a small gap at its bottom. Extending rearwardly along the curved portion of the casing are two oppositely disposed parallel elongated air intake slits at the level of the bottom of the partition. One of these slits is defined by the gap between a hinged lid allowing access to the fire chamber and the casing. The major portion of the section of the casing that surround the fire chamber is of glass, and the bottom of the fire chamber is lined with fire clay.
Inventors
- 👤 Harold W. Hannebaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:53
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
151 words
A fireplace, comprising: a hollow, generally cylindrical casing having a horizontal axis, said casing having closed ends and a hinged lid and further having two parallel elongated air intake slits parallel to the axis, said slits extending rearwardly along the curved surface of the casing to an endpoint intermediate the ends of the casing, the slits allowing air to be taken into the interior of the casing, there being a gap disposed between a lower end of the lid and the rest of the casing, said gap defining one of said slits; a vertical partition placed at the endpoint and dividing the casing into a fire chamber and an exhaust chamber, the partition restricting all communication between the chambers to an opening between the casing and the bottom of the partition; a base supporting the casing upon a horizontal surface; and a chimney venting the exhaust chamber to the outside atmosphere.
Claim 2
Dependent Claim
151 words
A fireplace, comprising: a hollow, generally cylindrical casing having a horizontal axis, said casing having closed ends and a hinged lid and further having two parallel elongated air intake slits parallel to the axis, said slits extending rearwardly along the curved surface of the casing to an endpoint intermediate the ends of the casing, the slits allowing air to be taken into the interior of the casing, there being a gap disposed between a lower end of the lid and the rest of the casing, said gap defining one of said slits; a vertical partition placed at the endpoint and dividing the casing into a fire chamber and an exhaust chamber, the partition restricting all communication between the chambers to an opening between the casing and the bottom of the partition; a base supporting the casing upon a horizontal surface; and a chimney venting the exhaust chamber to the outside atmosphere.
Claim 3
Dependent Claim
20 words
The device of claim 1 wherein the two slits define a horizontal plane containing the bottom edge of the partition.
Claim 4
Dependent Claim
19 words
The device of claim 2 wherein the exhaust chamber supports at least one horizontal baffle located below the chimney.
Claim 5
Dependent Claim
24 words
The device of claim 3 wherein the major portion of the section of the casing that surrounds the fire chamber is constructed of glass.
Claim 6
Dependent Claim
17 words
The device of claim 4 wherein the bottom of the fire chamber is coated with fire clay.
Claim 7
Dependent Claim
27 words
The device of claim 5 wherein the casing on the top of the exhaust chamber is elongated to form a horizontal cooking surface bisected by the chimney.
References Cited (Backward Citations)
US165393A
Cited
FR513859A
Cited
US1382880A
Cited
US2220604A
Cited
US3499432A
Cited
US3757766A
Cited
US3868942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-19 | 1980-04-19 | 1980-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-19 | 1984-04-19 | 1984-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-19 | 1988-04-19 | 1988-10-19 | $7700.00 | Window Closed / Lapsed |