US4185610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Forced air channel baffles
Assignee: BUCK STOVE Corp A CORP OF
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Filing: 1977-08-26
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Granted: 1980-01-29
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Expires: 1997-08-26
Abstract
Abstract A free-standing unit for heating air in a U-shaped channel surrounding a fire box having a pair of spaced vertical vents for directing the heated forced air to converge in front of the fire box opening to limit air flow towards said openings. Mesh in the vertical vents directs the forced air downward to be combined with the hot forced air from a bottom horizontal vent. A baffle plate depending from the top of the fire-box adjacent the flue port and an opening along the top of the doors ignite the gases adjacent the top and directs some gases back into the fire. By forcing heated air at a low level and drawing cool air from a high level, the air being heated is of a uniform temperature. A hood extending along the top edge of the fire box opening diverts exiting gases back into the fire box. A thermostatically controlled blower creates the forced air and cools the fire box walls.
Inventors
- 👤 Carrol E. Buckner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:25
CPC Classifications
F; F24; F24F; F24F5/00; F24B; F24B1/00; F24B1/18; F24B1/185; F24B1/188; F24B1/1885; F24B7/00; F24B7/02; F24B7/025; F24H; F24H3/00; F24H3/02; F24H3/06
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
186 words
A fireplace comprising: a chamber for holding a source of heat; a forced air channel surrounding a back wall, side walls and a bottom wall of said chamber, said channel including substantially the entire back wall, said two side walls and said bottom wall of said chamber; the back portion of said forced air channel communicates with the two side and bottom portions of said forced air channel and said bottom portion communicates with said two side portions; a vent means in the front of said forced air channel; means for forcibly introducing air into said back portion of said air channel and over substantially the entire surface of said back wall of said chamber; and baffle means interior said back, two side and bottom portions of said channel for directing forced air from said back portion to said two side portions, and over substantially the entire side walls and from said back portion to said bottom portion and over substantially the entire bottom wall and from the bottom portion to said side portions to said vent means in the front of said forced air channel.
Claim 2
Dependent Claim
186 words
A fireplace comprising: a chamber for holding a source of heat; a forced air channel surrounding a back wall, side walls and a bottom wall of said chamber, said channel including substantially the entire back wall, said two side walls and said bottom wall of said chamber; the back portion of said forced air channel communicates with the two side and bottom portions of said forced air channel and said bottom portion communicates with said two side portions; a vent means in the front of said forced air channel; means for forcibly introducing air into said back portion of said air channel and over substantially the entire surface of said back wall of said chamber; and baffle means interior said back, two side and bottom portions of said channel for directing forced air from said back portion to said two side portions, and over substantially the entire side walls and from said back portion to said bottom portion and over substantially the entire bottom wall and from the bottom portion to said side portions to said vent means in the front of said forced air channel.
Claim 3
Dependent Claim
37 words
The fireplace according to claim 1 wherein said means in said back portion includes baffles extending radially from the inlets for said introducing means to direct air over said back portion and said side and bottom portions.
Claim 4
Dependent Claim
45 words
The fireplace according to claim 1 wherein said means in said side portion includes baffles radially extending from a vent means in the front of said side portion to direct air over said side portion from said back and bottom portions to said vent means.
Claim 5
Dependent Claim
30 words
The fireplace according to claim 1 wherein said means in said bottom portion includes baffles for directing air from said back portion over said bottom portion to said side portions.
Claim 6
Dependent Claim
25 words
The fireplace according to claim 4 wherein said baffles in said bottom portion direct air to a vent in the front of said bottom portion.
Claim 7
Dependent Claim
147 words
A heating unit comprising: a fire box; a unitary forced air channel along a back and two side walls of said firebox, said channel including substantially the entire back wall and substantially the entire two side walls of said firebox; an inlet in the back wall portion of said forced air channel and outlets in the side wall portions; means for forcing air from said inlet to said outlets through said forced air channel; first baffle means in said back wall portion for radially directing the forced air from said inlet over substantially the entire surface of said back wall of said fire box toward both side wall portions and over substantially the entire side walls of said fire box; and second baffle means in said side wall portions for radially directing the forced air in said side portions of said forced air channels toward said outlets.
Claim 8
Dependent Claim
147 words
A heating unit comprising: a fire box; a unitary forced air channel along a back and two side walls of said firebox, said channel including substantially the entire back wall and substantially the entire two side walls of said firebox; an inlet in the back wall portion of said forced air channel and outlets in the side wall portions; means for forcing air from said inlet to said outlets through said forced air channel; first baffle means in said back wall portion for radially directing the forced air from said inlet over substantially the entire surface of said back wall of said fire box toward both side wall portions and over substantially the entire side walls of said fire box; and second baffle means in said side wall portions for radially directing the forced air in said side portions of said forced air channels toward said outlets.
Claim 9
Dependent Claim
30 words
The heating unit according to claim 6 wherein said first baffle means includes baffles radially extending from said inlet and said second baffle means includes baffles extending from said outlet.
Claim 10
Dependent Claim
51 words
The heating unit according to claim 6 wherein said forced air channel includes a bottom portion along the bottom wall of said fireplace and said bottom portion includes third baffle means for directing air from said back portion over said bottom wall of said fire box to said side wall portions.
Claim 11
Dependent Claim
160 words
A heating unit comprising: a fire box; forced air channels along a back, bottom and two side walls of said fire box; an inlet in the back wall portion of said forced air channel and outlets in the side wall portions; means for forcing air from said inlet to said outlet through said forced air channel; first baffle means in said back wall portion for radially directing the forced air from said inlet over said back wall of said fire box; second baffle means in said side wall portions for directing the forced air to said outlet from said back wall portion over the side wall of said fire box; and third baffle means in said bottom wall portion including two sets of baffles on each side of the center of said bottom portion, the baffles in a set are substantially parallel to each other and the ends of said baffles adjacent said center are staggered relative to said center.
Claim 12
Dependent Claim
160 words
A heating unit comprising: a fire box; forced air channels along a back, bottom and two side walls of said fire box; an inlet in the back wall portion of said forced air channel and outlets in the side wall portions; means for forcing air from said inlet to said outlet through said forced air channel; first baffle means in said back wall portion for radially directing the forced air from said inlet over said back wall of said fire box; second baffle means in said side wall portions for directing the forced air to said outlet from said back wall portion over the side wall of said fire box; and third baffle means in said bottom wall portion including two sets of baffles on each side of the center of said bottom portion, the baffles in a set are substantially parallel to each other and the ends of said baffles adjacent said center are staggered relative to said center.
Claim 13
Dependent Claim
27 words
The heating unit according to claim 9 wherein said bottom portion includes an outlet in the front of said bottom portion and a baffle along said center.
Claim 14
Dependent Claim
169 words
A fireplace comprising: a chamber for holding a source of heat; a forced air channel surrounding a back, two sides and bottom of said chamber; the back portion of said forced air channel communicates with the two side and bottom portions of said forced air channel and said bottom portion communicates with said two side portions; a vent in the front of said forced air channel; means for forcibly introducing air into said back portion of said air channels; and means interior said back, two side and bottom portions for directing forced air from said back portion to said two sides and to said bottom portion and between said two sides and bottom portions to said vent in the front of said forced air channel; said directing means including two sets of baffles on each side of the center of said bottom portion, the baffles in a set are substantially parallel to each other and the ends of said baffles adjacent said center are staggered relative to said center.
Claim 15
Dependent Claim
169 words
A fireplace comprising: a chamber for holding a source of heat; a forced air channel surrounding a back, two sides and bottom of said chamber; the back portion of said forced air channel communicates with the two side and bottom portions of said forced air channel and said bottom portion communicates with said two side portions; a vent in the front of said forced air channel; means for forcibly introducing air into said back portion of said air channels; and means interior said back, two side and bottom portions for directing forced air from said back portion to said two sides and to said bottom portion and between said two sides and bottom portions to said vent in the front of said forced air channel; said directing means including two sets of baffles on each side of the center of said bottom portion, the baffles in a set are substantially parallel to each other and the ends of said baffles adjacent said center are staggered relative to said center.
Claim 16
Dependent Claim
26 words
The fireplace according to claim 11 wherein said bottom portion includes a vent in the front of said bottom portion and a baffle along said center.
Claim 17
Dependent Claim
149 words
A heating unit comprising: a fire box; forced air channels along a back and two side walls of said fire box; an inlet in the back wall portion of said forced air channel and outlets in the side wall portions; means for forcing air from said inlet to said outlet through said forced air channel; first baffle means in said back wall portion for radially directing the forced air from said inlet over said back wall of said fire box; second baffle means in said side wall portions for radially directing the forced air to said outlet from said back wall portion over the side wall of said fire box; and said fire box includes an opening in a front wall for providing access, and said outlets are adjacent the sides of said opening to surround substantial portions of said sides of said access opening with exiting forced air.
Claim 18
Dependent Claim
149 words
A heating unit comprising: a fire box; forced air channels along a back and two side walls of said fire box; an inlet in the back wall portion of said forced air channel and outlets in the side wall portions; means for forcing air from said inlet to said outlet through said forced air channel; first baffle means in said back wall portion for radially directing the forced air from said inlet over said back wall of said fire box; second baffle means in said side wall portions for radially directing the forced air to said outlet from said back wall portion over the side wall of said fire box; and said fire box includes an opening in a front wall for providing access, and said outlets are adjacent the sides of said opening to surround substantial portions of said sides of said access opening with exiting forced air.
Claim 19
Dependent Claim
181 words
A firebox comprising: a chamber for holding a source of heat; a forced air channel surrounding a back, two sides and bottom of said chamber; the back portion of said forced air channel communicates with the two side and bottom portions of said forced air channel and said bottom portion communicates with said two side portions; a vent means in the front of said forced air channel; means for forcibly introducing air into said back portion of said air channels; means interior said back, two side and bottom portions for directing forced air from said back portion to said two sides and to said bottom portion and between said two sides and bottom portions to said vent means in the front of said forced air channel; and said fire box includes an opening in a front wall for providing access, and said vent means includes a pair of vents adjacent the sides of said opening and a vent adjacent the bottom of said opening to surround substantial portions of said sides and bottom of said access opening with exiting forced air.
Claim 20
Dependent Claim
181 words
A firebox comprising: a chamber for holding a source of heat; a forced air channel surrounding a back, two sides and bottom of said chamber; the back portion of said forced air channel communicates with the two side and bottom portions of said forced air channel and said bottom portion communicates with said two side portions; a vent means in the front of said forced air channel; means for forcibly introducing air into said back portion of said air channels; means interior said back, two side and bottom portions for directing forced air from said back portion to said two sides and to said bottom portion and between said two sides and bottom portions to said vent means in the front of said forced air channel; and said fire box includes an opening in a front wall for providing access, and said vent means includes a pair of vents adjacent the sides of said opening and a vent adjacent the bottom of said opening to surround substantial portions of said sides and bottom of said access opening with exiting forced air.
Claim 21
Dependent Claim
18 words
The heating unit according to claim 14 wherein said directing means direct air to converge on said vents.
Claim 22
Dependent Claim
24 words
The heating unit according to claim 14 including a horizontal plate extending from said front wall separating said access opening and said bottom vent.
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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) | 1983-01-28 | 1983-07-30 | 1984-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-28 | 1987-07-30 | 1988-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-28 | 1991-07-30 | 1992-01-29 | $7700.00 | Window Closed / Lapsed |