US4438755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wood burning stove having water heater
Assignee: Individual
•
Filing: 1983-01-31
•
Granted: 1984-03-27
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Expires: 2003-01-31
Abstract
Abstract A solid fuel burning stove having a hot water heating means. A water containing chamber open at the top for communication with room air serves the dual purpose of providing a heat sink for preheating water while at the same time providing a means for humidifying the room air. Domestic water heating coils are positioned so that cold water flows first through coils located at the water containing reservoir where it is preheated and then passes into the combustion chamber where it is heated to a high temperature before flowing into a hot water tank. The stove is preferably also provided with a small baking oven.
Inventors
- 👤 Daniel J. Moffett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:38
CPC Classifications
F; F24; F24B; F24B9/00; Y; Y02; Y02A; Y02A40/00; Y02A40/90; Y02A40/924; Y02A40/928
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
113 words
A solid fuel burning stove comprising (a) a combustion chamber having openings for introduction of fuel, intake of air and exhaust of smoke; (b) a tank adjacent said combustion chamber having the top thereof open to the atmosphere; (c) a heat exchange device positioned in said tank adapted to cause preheating of water circulated therethrough; (d) a second heat exchange device located in the combustion chamber adapted to heat said preheated water to an elevated temperature, and (e) suitable conduit means for carrying a flow of water into said first heat exchange device, from said first heat exchange device to said second heat exchange device and therefrom to a hot water distribution system.
Claim 2
Dependent Claim
113 words
A solid fuel burning stove comprising (a) a combustion chamber having openings for introduction of fuel, intake of air and exhaust of smoke; (b) a tank adjacent said combustion chamber having the top thereof open to the atmosphere; (c) a heat exchange device positioned in said tank adapted to cause preheating of water circulated therethrough; (d) a second heat exchange device located in the combustion chamber adapted to heat said preheated water to an elevated temperature, and (e) suitable conduit means for carrying a flow of water into said first heat exchange device, from said first heat exchange device to said second heat exchange device and therefrom to a hot water distribution system.
Claim 3
Dependent Claim
26 words
A stove according to claim 1 which comprises a free standing stove having cooking surfaces at the top thereof and an oven therein for food preparation.
Claim 4
Dependent Claim
133 words
A free standing wood-burning stove suitable for residential use for home heating and domestic hot water heating comprising (a) a combustion chamber having adjustable air intake openings and an exhaust flue suitable for connection to a chimney; (b) a tank for containing water adjacent to said combustion chamber having the top thereof in communication with the atmosphere; (c) a heat exchange coil positioned in said tank having an intake means connected to the domestic cold water supply and an outflow pipe leading to; (d) a second heat exchange means located in the combustion chamber adapted to cause the fire within said chamber to heat water in said heat exchanger to an elevated temperature, and (e) discharge pipe for carrying a flow of hot water from said stove to a hot water distribution system.
Claim 5
Dependent Claim
133 words
A free standing wood-burning stove suitable for residential use for home heating and domestic hot water heating comprising (a) a combustion chamber having adjustable air intake openings and an exhaust flue suitable for connection to a chimney; (b) a tank for containing water adjacent to said combustion chamber having the top thereof in communication with the atmosphere; (c) a heat exchange coil positioned in said tank having an intake means connected to the domestic cold water supply and an outflow pipe leading to; (d) a second heat exchange means located in the combustion chamber adapted to cause the fire within said chamber to heat water in said heat exchanger to an elevated temperature, and (e) discharge pipe for carrying a flow of hot water from said stove to a hot water distribution system.
Claim 6
Dependent Claim
20 words
A stove according to claim 3 wherein cooking surfaces of different elevations are provided at the top of said stove.
Claim 7
Dependent Claim
17 words
Device according to claim 3 wherein a small oven is provided at the top of said stove.
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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) | 1987-03-27 | 1987-09-26 | 1988-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-27 | 1991-09-26 | 1992-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-27 | 1995-09-26 | 1996-03-27 | $7700.00 | Window Closed / Lapsed |