US4159016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Freestanding fireplace stove with cooking means
Assignee: Chinook Manufacturing Co
•
Filing: 1977-09-09
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Granted: 1979-06-26
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Expires: 1997-09-09
Abstract
Abstract A freestanding fireplace stove is provided with an air space surrounding the firebox which is heated by the fireplace and is provided with doors and shelves so that the fireplace may be used as an oven. Further, the top of the fireplace has a large flat area which may be used as a cooking stove.
Inventors
- 👤 Michael Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:38
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/26; F24B1/18; F24B1/181
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
150 words
A freestanding air circulating fireplace stove comprising, in combination: a. an all metal, uninsulated firebox having two side walls, a back wall and a top wall defining a combustion chamber having an open front, said side and back walls being imperforate; b. an outer shell completely surrounding said firebox and spaced therefrom to form plenum chambers opposite said side, back and top walls of the firebox; c. a combustion air inlet in said outer shell opposite the open front of the combustion chamber of the firebox for admitting combustion air thereto; d. a flue for the exhaust of combustion products; e. an outlet for combustion products in said top wall of the firebox in communication with said flue; f. means communicating said plenum chambers with said flue; g. shelf means in said plenum chambers, and h. access means in said outer shell granting ingress and egress to said shelf means.
Claim 2
Dependent Claim
150 words
A freestanding air circulating fireplace stove comprising, in combination: a. an all metal, uninsulated firebox having two side walls, a back wall and a top wall defining a combustion chamber having an open front, said side and back walls being imperforate; b. an outer shell completely surrounding said firebox and spaced therefrom to form plenum chambers opposite said side, back and top walls of the firebox; c. a combustion air inlet in said outer shell opposite the open front of the combustion chamber of the firebox for admitting combustion air thereto; d. a flue for the exhaust of combustion products; e. an outlet for combustion products in said top wall of the firebox in communication with said flue; f. means communicating said plenum chambers with said flue; g. shelf means in said plenum chambers, and h. access means in said outer shell granting ingress and egress to said shelf means.
Claim 3
Dependent Claim
32 words
The combination set forth in claim 1 wherein said side walls of the firebox are provided with heat shields to prevent the plenum chambers opposite said side walls from becoming unduly hot.
Claim 4
Dependent Claim
22 words
The combination set forth in claim 2 wherein said side, back and top walls of said firebox are provided with stiffening members.
Claim 5
Dependent Claim
28 words
The combination set forth in claim 3 wherein said outer chamber is provided with closure means for selectively opening or blocking off the open front of the firebox.
References Cited (Backward Citations)
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Cited
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US1470542A
Cited
US3169516A
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Cited
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Cited
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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) | 1982-06-25 | 1982-12-25 | 1983-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-25 | 1986-12-25 | 1987-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-25 | 1990-12-25 | 1991-06-26 | $7700.00 | Window Closed / Lapsed |