US4136665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wood-burning stove
Assignee: Individual
•
Filing: 1977-10-25
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Granted: 1979-01-30
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Expires: 1997-10-25
Abstract
Abstract An airtight combustion chamber in a house has a draft hole formed through a first end and a draft door movably mounted thereon to selectively open the draft hole to a desired extent, controlled by a thermostat. The wall of the second spaced opposite end of the combustion chamber has a steel stove door movably mounted thereon. The second end coincides with a doorway formed through a chimney wall which is common with the house. Wood is supplied to the stove through the stove door for combustion. The products of combustion are removed from the stove via the stove door. The stove door has a smoke pipe extending therethrough into the chimney and a damper on the end of the pipe. Heat from the fire in the airtight chamber escapes into the house through decorative screens above and in front of the stove, simultaneously warming rock or brick walls at the sides of the stove and a rock or brick wall of the house.
Inventors
- 👤 Peter U. Steffen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:33
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
269 words
A wood-burning stove for installation at a chimney of a house, said chimney being adjacent a rock, brick, and the like, wall of the house and having first and second spaced opposite chimney walls, the first chimney wall abutting the wall of the house and the second chimney wall being outside and spaced from the house, the first chimney wall and the wall of the house having a first doorway formed therethrough and the second chimney wall having a second doorway formed therethrough, and a door thermally insulatedly movably mounted in the second doorway to provide access to the chimney, said wood-burning stove comprising a substantially airtight combustion chamber in the house, said chamber having first and second spaced opposite ends, the first end having a draft hole formed therethrough and a draft door movably mounted thereon to selectively open the draft hole to a desired extent, the second end coinciding with the first doorway of the first chimney wall, sides and a top; a stove door movably mounted in the second end of the chamber for supplying wood to the stove for combustion and for removing the products of combustion from the stove, said stove door having a smoke pipe extending therethrough into the chimney and a damper on the end of said smoke pipe; and decorative screens at the top and the front of the chamber for permitting heat from a fire in the chamber to flow into the house therethrough to simultaneously warm rock, brick, and the like, walls at the sides of the stove and the rock, brick, or the like, wall of the house.
Claim 2
Dependent Claim
269 words
A wood-burning stove for installation at a chimney of a house, said chimney being adjacent a rock, brick, and the like, wall of the house and having first and second spaced opposite chimney walls, the first chimney wall abutting the wall of the house and the second chimney wall being outside and spaced from the house, the first chimney wall and the wall of the house having a first doorway formed therethrough and the second chimney wall having a second doorway formed therethrough, and a door thermally insulatedly movably mounted in the second doorway to provide access to the chimney, said wood-burning stove comprising a substantially airtight combustion chamber in the house, said chamber having first and second spaced opposite ends, the first end having a draft hole formed therethrough and a draft door movably mounted thereon to selectively open the draft hole to a desired extent, the second end coinciding with the first doorway of the first chimney wall, sides and a top; a stove door movably mounted in the second end of the chamber for supplying wood to the stove for combustion and for removing the products of combustion from the stove, said stove door having a smoke pipe extending therethrough into the chimney and a damper on the end of said smoke pipe; and decorative screens at the top and the front of the chamber for permitting heat from a fire in the chamber to flow into the house therethrough to simultaneously warm rock, brick, and the like, walls at the sides of the stove and the rock, brick, or the like, wall of the house.
Claim 3
Dependent Claim
47 words
A wood-burning stove as claimed in claim 1, further comprising a thermostatic control device for controlling the opening of the draft door in accordance with a desired temperature of the house thereby providing slow burning of wood in the chamber and making fuel supply unnecessary for days.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-29 | 1982-07-31 | 1983-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-29 | 1986-07-31 | 1987-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-29 | 1990-07-31 | 1991-01-30 | $7700.00 | Window Closed / Lapsed |