US4096847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stove
Assignee: Individual
•
Filing: 1975-08-25
•
Granted: 1978-06-27
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Expires: 1995-08-25
Abstract
Abstract A stove having a combustion chamber surrounded by four sides and a top and having a warm air conduit extending between opposite sides and opening outwardly of at least one of the sides. Where the stove is to utilize natural convection, the conduits open outwardly of both the sides of the enclosure. An opening is provided in the top or bottom of the warm air conduit remote from its outlet or outlets for effecting draft thereto. A preferred embodiment has two such heating conduits at right angles to each other and with an opening therebetween to further increase draft through the conduits. In the case of forced convection, the conduits need only open from one of the sides.
Inventors
- 👤 Allen L. Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:21
CPC Classifications
F; F24; F24C; F24C1/00; F24C1/14
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
79 words
A stove comprising: an enclosure having a front, back, opposite sides and a top surrounding a fire chamber; a transverse warm air conduit opening outwardly of said enclosure; a longitudinally extending warm air conduit opening outwardly of said enclosure; said longitudinally extending conduit being positioned over said transverse conduit; means extending between said conduits to communicate air from said transverse conduit to said longitudinally extending conduit; and a smoke exit opening for said enclosure positioned over said transverse conduit.
Claim 2
Dependent Claim
79 words
A stove comprising: an enclosure having a front, back, opposite sides and a top surrounding a fire chamber; a transverse warm air conduit opening outwardly of said enclosure; a longitudinally extending warm air conduit opening outwardly of said enclosure; said longitudinally extending conduit being positioned over said transverse conduit; means extending between said conduits to communicate air from said transverse conduit to said longitudinally extending conduit; and a smoke exit opening for said enclosure positioned over said transverse conduit.
Claim 3
Dependent Claim
20 words
The stove of claim 1 wherein said smoke exit opening is generally centered over both of said warm air conduits.
Claim 4
Dependent Claim
65 words
The stove of claim 1 wherein said transverse conduit is of rectangular cross section with a generally flat top and bottom which extend over approximately one half of the depth of said enclosure to act as a baffle which shields said smoke exit opening and causes the products of combustion to flow along said longitudinally extending conduit and over the top of said transverse conduit.
Claim 5
Dependent Claim
21 words
The stove of claim 3 wherein said fire chamber extends around the front and back of said transverse warm air conduit.
Claim 6
Dependent Claim
17 words
The stove of claim 1 wherein said transverse conduit opens outwardly of both sides of said enclosure.
Claim 7
Dependent Claim
20 words
The stove of claim 1 wherein said longitudinally extending conduit opens outwardly of said front and back of said enclosure.
Claim 8
Dependent Claim
46 words
The stove of claim 6 comprising: an air intake shield on said back of said enclosure, said shield being constructed and arranged to cause air to flow upwardly over at least a portion of said back and into at least one of said warm air conduits.
Claim 9
Dependent Claim
49 words
The stove of claim 6 comprising: a sheet metal air intake shield generally covering said back of said stove to form an air intake plenum chamber, means communicating said plenum chamber to at least one of said warm air conduits, and a forced air fan pressurizing said plenum chamber.
Claim 10
Dependent Claim
116 words
A stove comprising: an enclosure having four sides and a top surrounding a fire chamber for combustible material a warm air conduit extending through said fire chamber and being spaced from the side walls of said enclosure and opening outwardly of at least one of said sides of said enclosure; a smoke exit in the top of said enclosure positioned above said warm air conduit, said warm air conduit being positioned adjacent the combustible material so that flame extends around said warm air conduit; and an inlet conduit bringing air to be heated upwardly and onto the bottom of a region of said conduit that is remote from the region which opens outwardly of said enclosure.
Claim 11
Dependent Claim
116 words
A stove comprising: an enclosure having four sides and a top surrounding a fire chamber for combustible material a warm air conduit extending through said fire chamber and being spaced from the side walls of said enclosure and opening outwardly of at least one of said sides of said enclosure; a smoke exit in the top of said enclosure positioned above said warm air conduit, said warm air conduit being positioned adjacent the combustible material so that flame extends around said warm air conduit; and an inlet conduit bringing air to be heated upwardly and onto the bottom of a region of said conduit that is remote from the region which opens outwardly of said enclosure.
Claim 12
Dependent Claim
46 words
The stove of claim 9 wherein said enclosure has a length which is greater than its width and said warm air conduit extends lengthwise of the enclosure; and wherein said inlet conduit extends upwardly through said fire chamber into the bottom of said warm air conduit.
Claim 13
Dependent Claim
71 words
A stove comprising: an enclosure having four sides and a top surrounding a fire chamber; a first warm air conduit extending between and opening outwardly of a pair of opposite sides; a second warm air conduit extending between and opening outwardly of the other pair of opposite sides, said second warm air conduit being positioned above said first warm air conduit; and an opening between said conduits to effect draft therethrough.
Claim 14
Dependent Claim
71 words
A stove comprising: an enclosure having four sides and a top surrounding a fire chamber; a first warm air conduit extending between and opening outwardly of a pair of opposite sides; a second warm air conduit extending between and opening outwardly of the other pair of opposite sides, said second warm air conduit being positioned above said first warm air conduit; and an opening between said conduits to effect draft therethrough.
Claim 15
Dependent Claim
27 words
The stove of claim 11 wherein said enclosure has a length which is greater than its width, and wherein said first conduit extends lengthwise of said enclosure.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-26 | 1981-12-26 | 1982-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-26 | 1985-12-26 | 1986-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-26 | 1989-12-26 | 1990-06-27 | $7700.00 | Window Closed / Lapsed |