US4214569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fireplace stove
Assignee: Individual
•
Filing: 1978-04-10
•
Granted: 1980-07-29
•
Expires: 1998-04-10
Abstract
Abstract The specification discloses a fireplace stove in which heat exchange tubes slope upwardly from a sloping rear wall to a sloping front wall of a polygonal body and are open at each end. A door is openable and/or removable from the body to form a fireplace. A door frame has a thermostat controlled damper at its top and outlets to the fire area near in the lower, side portions thereof. A baffle is spaced below the flue outlet and is aligned with the flue outlet.
Inventors
- 👤 Friedrich W. Heine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:40
CPC Classifications
F; F24; F24B; F24B7/00; F24B7/04; F24B1/00; F24B1/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
75 words
In a fireplace stove, a body having a door opening, a tubular door frame of metal extending at least partially around the door opening, a door detachably secured to the door frame, the door frame having a draft inlet opening and a draft outlet opening spaced along the door frame from the inlet opening, and damper means for adjustably controlling flow of air through the door frame from the inlet opening to the outlet opening.
Claim 2
Dependent Claim
75 words
In a fireplace stove, a body having a door opening, a tubular door frame of metal extending at least partially around the door opening, a door detachably secured to the door frame, the door frame having a draft inlet opening and a draft outlet opening spaced along the door frame from the inlet opening, and damper means for adjustably controlling flow of air through the door frame from the inlet opening to the outlet opening.
Claim 3
Dependent Claim
29 words
The fireplace stove of claim 1 wherein the draft inlet is at the top of the door frame and the outlet is near the bottom of the door frame.
Claim 4
Dependent Claim
21 words
The fireplace stove of claim 2 wherein the door frame has a tubular portion in the form of an inverted "U".
Claim 5
Dependent Claim
40 words
The fireplace stove of claim 2 including a damper plate, a rod supporting the damper plate and extending along the top of the tubular portion, a thermostatic coil attached to the rod, and manually adjustable means for adjusting the coil.
Claim 6
Dependent Claim
132 words
In a stove, a hollow body having a combustion chamber in the lower portion thereof and a stack opening in the upper portion thereof, a plurality of generally cylindrical heat exchange tubes open at both ends and extending completely through the body between the combustion chamber and the stack opening and sloping upwardly from the rear of the body to the front of the body, the tubes being parallel and lying side-by-side in a plane and spaced apart, the tubes acting as baffles and covering a substantial portion of the area between the combustion chamber and the stack opening, a doorway in the body, a door detachably secured to the doorway, and preheating draft tube means extending at least partially around the doorway and having an upper inlet and a lower outlet.
Claim 7
Dependent Claim
132 words
In a stove, a hollow body having a combustion chamber in the lower portion thereof and a stack opening in the upper portion thereof, a plurality of generally cylindrical heat exchange tubes open at both ends and extending completely through the body between the combustion chamber and the stack opening and sloping upwardly from the rear of the body to the front of the body, the tubes being parallel and lying side-by-side in a plane and spaced apart, the tubes acting as baffles and covering a substantial portion of the area between the combustion chamber and the stack opening, a doorway in the body, a door detachably secured to the doorway, and preheating draft tube means extending at least partially around the doorway and having an upper inlet and a lower outlet.
Claim 8
Dependent Claim
16 words
The stove of claim 5 wherein the doorway is tubular and forms the draft tube means.
References Cited (Backward Citations)
US1175254A
Cited
US1931959A
Cited
US2174572A
Cited
US3080862A
Cited
FR2282603A1
Cited
US4121560A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-29 | 1984-01-28 | 1984-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-29 | 1988-01-28 | 1988-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-29 | 1992-01-28 | 1992-07-29 | $7700.00 | Window Closed / Lapsed |