US4383517A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination coal and wood stove
Assignee: Individual
•
Filing: 1981-05-14
•
Granted: 1983-05-17
•
Expires: 2001-05-14
Abstract
Abstract The combination stove has a fire chamber that is partially cylindrical including a side loading door for loading wood or other combustible material such as coke or coal into the fire chamber. The front of the stove may be opened to enable viewing of the wood or coal burning in the stove by means of an arcuate sliding door that is operable to substantially totally close the chamber or open a section of the front thereof for viewing purposes. The sliding door is covered by a window construction including a tempered glass face. The stove is provided with an open base for supporting the chamber in a shroud covering the top and back of the chamber, preferably including blower means associated therewith. Particularly for wood combustion, the chamber is provided with a top draft extending longitudinally of the chamber and has supported therein a grate. For coal combustion, air input draft is coupled under the grate, preferably also including the capability of forced air draft using a portion of the forced air from the blower.
Inventors
- 👤 Gordon A. Gillis
- 👤 Richard Lucier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:11
CPC Classifications
F; F24; F24B; F24B7/00; F24B7/02; F24B7/025; F24B5/00; F24B5/02; F24B5/021; F24B5/026
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
389 words
A stove for burning combustible materials and comprising: means defining a fire chamber including support means therefor and means forming at least a front opening and a side opening, side door means adapted to open for feeding wood or the like to the fire chamber or closed to substantially seal said side opening and including means supporting the side door from said fire chamber means adjacent said side opening, said front door means and associated support means therefor permitting said front door means to move relative to said fire chamber means to cover and uncover said front opening, means for controlling the position of said front door means to be open in one position permitting viewing through said front opening and closed in another position substantially sealing said front opening, said fire chamber being at least partially cylindrical, said front door means comprising an arcuate door and guide means for the door to permit the door to move relative to the fire chamber front opening to open and close the opening, said fire chamber also having at least primary tapered lower walls and a substantially flat bottom wall interconnecting the tapered walls, a basket means for the combustible material supported in said fire chamber over said tapered walls to be supported in a fixed position demarcating the fire chamber into upper and lower sections, said basket means having an open bottom, a grate in said basket means over the open bottom, handle means connected at one end to said grate adapted for manual movement of the grate, said bottom wall and associated tapered walls of the fire chamber forming an ash pit including an access door thereto, blower means, a first passage means extending about the exterior surface of the fire chamber with said blower means coupled therewith for circulating air about the fire chamber, and a second air passage means coupled from said first air passage means for coupling air directly into the fire chamber just under the basket means and grate, said second air passage means including a slide member that is manually adjustable to vary the volume of air coupled via the second air passage means into the lower section of the fire chamber, said second air passage means including aperture means extending side to side in said fire chamber substantially the length of the grate.
Claim 2
Dependent Claim
389 words
A stove for burning combustible materials and comprising: means defining a fire chamber including support means therefor and means forming at least a front opening and a side opening, side door means adapted to open for feeding wood or the like to the fire chamber or closed to substantially seal said side opening and including means supporting the side door from said fire chamber means adjacent said side opening, said front door means and associated support means therefor permitting said front door means to move relative to said fire chamber means to cover and uncover said front opening, means for controlling the position of said front door means to be open in one position permitting viewing through said front opening and closed in another position substantially sealing said front opening, said fire chamber being at least partially cylindrical, said front door means comprising an arcuate door and guide means for the door to permit the door to move relative to the fire chamber front opening to open and close the opening, said fire chamber also having at least primary tapered lower walls and a substantially flat bottom wall interconnecting the tapered walls, a basket means for the combustible material supported in said fire chamber over said tapered walls to be supported in a fixed position demarcating the fire chamber into upper and lower sections, said basket means having an open bottom, a grate in said basket means over the open bottom, handle means connected at one end to said grate adapted for manual movement of the grate, said bottom wall and associated tapered walls of the fire chamber forming an ash pit including an access door thereto, blower means, a first passage means extending about the exterior surface of the fire chamber with said blower means coupled therewith for circulating air about the fire chamber, and a second air passage means coupled from said first air passage means for coupling air directly into the fire chamber just under the basket means and grate, said second air passage means including a slide member that is manually adjustable to vary the volume of air coupled via the second air passage means into the lower section of the fire chamber, said second air passage means including aperture means extending side to side in said fire chamber substantially the length of the grate.
Claim 3
Dependent Claim
30 words
A stove as set forth in claim 1 including means supported from the front of said fire chamber over said front opening including a window forwardly of said front opening.
Claim 4
Dependent Claim
20 words
A stove as set forth in claim 2 wherein said window comprises at least in part a tempered glass panel.
Claim 5
Dependent Claim
27 words
A stove as set forth in claim 2 wherein said window housing also includes a top access means to said housing interior and said front door means.
Claim 6
Dependent Claim
31 words
A stove as set forth in claim 1 including first draft means associated with said side door means and second draft means disposed at a top portion of said fire chamber.
Claim 7
Dependent Claim
15 words
A stove as set forth in claim 5 wherein said draft means are both adjustable.
Claim 8
Dependent Claim
65 words
A stove as set forth in claim 1 including shroud means disposed over a portion of the outer surface of said fire chamber forming a duct for passage of air to be warmed by passing adjacent the fire chamber wall and forcing this air through a tight apex against the hot surface of the fire chamber at two strategic points thereby charging the air temperature.
Claim 9
Dependent Claim
29 words
A stove as set forth in claim 7 wherein said shroud means has a flat top forming a table-like surface upon which objects may be supported for heating thereof.
Claim 10
Dependent Claim
24 words
A stove as set forth in claim 7 wherein said shroud means extends about a top section and back section of the fire chamber.
Claim 11
Dependent Claim
29 words
A stove as set forth in claim 1 including an exhaust duct from the fire chamber and damper means for controlling the exhaust of gases from the fire chamber.
Claim 12
Dependent Claim
77 words
A stove as set forth in claim 1 wherein said first air passage means includes shroud means disposed over a portion of the outer surface of the fire chamber forming a duct for the passage of air to be warmed by passing adjacent the fire chamber wall, said passage having at least one reduced dimension restriction so as to force the circulated air against the hot surface of the fire chamber to thereby charge the air temperature.
Claim 13
Dependent Claim
18 words
A stove as set forth in claim 1 wherein said aperture means comprises a series of spaced apertures.
Claim 14
Dependent Claim
35 words
A stove as set forth in claim 1 wherein said blower means is disposed at the rear of the fire chamber with said slide member covering an entry port that leads to said aperture means.
Claim 15
Dependent Claim
41 words
A stove as set forth in claim 13 wherein said slide member is disposed adjacent said blower means whereby air is forced from said blower means across said first air passage means directly at said entry port to said aperture means.
Claim 16
Dependent Claim
23 words
A stove as set forth in claim 1 wherein said basket means at its front extends up to partially block said front opening.
Claim 17
Dependent Claim
255 words
A stove for burning combustible materials and comprising: means defining a fire chamber including support means therefor and means forming at least a front opening and a side opening, side door means adapted to open for feeding wood or the like to the fire chamber or closed to substantially seal said side opening and including means supporting the side door from said fire chamber means adjacent said side opening, said front door means and associated support means therefor permitting said front door means to slide relative to said fire chamber means to cover and uncover said front opening, means for controlling the position of said front door means to be open in one position permitting viewing through said front opening and closed in another position substantially sealing said front opening, said fire chamber being at least partially cylindrical, said front door means comprising an arcuate door and guide means for the door to permit the door to slide relative to the fire chamber front opening to open and close the opening, blower means, and shroud means disposed over a portion of the outer surface of said fire chamber forming a duct for passage of air to be warmed by passing adjacent the fire chamber wall, said passage having at least one reduced dimension restriction so as to force the circulated air against the hot surface of the fire chamber to thereby charge the air temperature, said reduced dimension restriction being formed between the cylindrical fire chamber and a substantially flat wall of the shroud means.
Claim 18
Dependent Claim
255 words
A stove for burning combustible materials and comprising: means defining a fire chamber including support means therefor and means forming at least a front opening and a side opening, side door means adapted to open for feeding wood or the like to the fire chamber or closed to substantially seal said side opening and including means supporting the side door from said fire chamber means adjacent said side opening, said front door means and associated support means therefor permitting said front door means to slide relative to said fire chamber means to cover and uncover said front opening, means for controlling the position of said front door means to be open in one position permitting viewing through said front opening and closed in another position substantially sealing said front opening, said fire chamber being at least partially cylindrical, said front door means comprising an arcuate door and guide means for the door to permit the door to slide relative to the fire chamber front opening to open and close the opening, blower means, and shroud means disposed over a portion of the outer surface of said fire chamber forming a duct for passage of air to be warmed by passing adjacent the fire chamber wall, said passage having at least one reduced dimension restriction so as to force the circulated air against the hot surface of the fire chamber to thereby charge the air temperature, said reduced dimension restriction being formed between the cylindrical fire chamber and a substantially flat wall of the shroud means.
Claim 19
Dependent Claim
32 words
A stove for burning combustible materials as defined in claim 16 including at least two said reduced dimension restrictions, one at the rear and one at the top of the fire chamber.
Claim 20
Dependent Claim
44 words
A stove for burning combustible materials as defined in claim 16 wherein said shroud means has a flat top wall and angled rear wall, both said walls spaced from the fire chamber and extending in a direction tangential to the fire chamber cylindrical portion.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-16 | 1986-11-15 | 1987-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-16 | 1990-11-15 | 1991-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-16 | 1994-11-15 | 1995-05-17 | $7700.00 | Window Closed / Lapsed |