US4074679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fireplace stove
Assignee: Individual
•
Filing: 1975-11-03
•
Granted: 1978-02-21
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Expires: 1995-11-03
Abstract
Abstract A fireplace stove for heating space in a building structure which includes an outer cabinet in which is disposed a combustion enclosure in spaced-apart relationship with the cabinet sidewall and grate means to form a clearance space, together with an ash receptacle being mounted in the lower end of the combustion enclosure for burning a combustible medium, with an air inlet being provided in the cabinet for admitting air to be heated into the clearance space and an air outlet in the cabinet for discharging heated air from the clearance into the surrounding space, the combustion enclosure, together with the cabinet, being mounted in spaced relationship with a supporting surface and having air deflector means for admitting combustion air into the bottom of the combustion enclosure, and a conduit for removing combustion gases from the interior of the combustion enclosure.
Inventors
- 👤 John Frank Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:02
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/18; F24B1/185; F24B1/188; F24B1/1885; F24B1/181
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
243 words
A freestanding fireplace stove for heating a space within a building structure comprising, in combination, a housing having a sidewall including a bottom edge and an upper portion defining an interior, a combustion enclosure having a sidewall defining an interior and a bottom end portion disposed within the interior of said housing, with the outer surface of said combustion enclosure sidewall in spaced-apart relationship with the inner surface of said housing sidewall to define a clearance space for providing a passage for air to be heated, partition means disposed within said clearance space arranged substantially parallel to said housing sidewall and said combustion enclosure sidewall in spaced relationship with both said enclosure sidewall and said housing sidewall for the transfer of radiant heat from said combustion enclosure sidewall to the air flowing within said clearance space, means for supporting said housing and said combustion enclosure on a supporting surface within the building structure, fuel combustion means disposed within said combustion enclosure adjacent said combustion enclosure bottom end portion, an access opening in said combustion enclosure, closure means for closing said access opening, air inlet means for admitting air to be heated into said clearance space, air outlet means for discharging heated air from said clearance space into the space to be heated in the building structure, conduit means connected to said combustion enclosure and extending through said housing side wall upper portion for removing combustion gases from the interior of said combustion enclosure.
Claim 2
Dependent Claim
243 words
A freestanding fireplace stove for heating a space within a building structure comprising, in combination, a housing having a sidewall including a bottom edge and an upper portion defining an interior, a combustion enclosure having a sidewall defining an interior and a bottom end portion disposed within the interior of said housing, with the outer surface of said combustion enclosure sidewall in spaced-apart relationship with the inner surface of said housing sidewall to define a clearance space for providing a passage for air to be heated, partition means disposed within said clearance space arranged substantially parallel to said housing sidewall and said combustion enclosure sidewall in spaced relationship with both said enclosure sidewall and said housing sidewall for the transfer of radiant heat from said combustion enclosure sidewall to the air flowing within said clearance space, means for supporting said housing and said combustion enclosure on a supporting surface within the building structure, fuel combustion means disposed within said combustion enclosure adjacent said combustion enclosure bottom end portion, an access opening in said combustion enclosure, closure means for closing said access opening, air inlet means for admitting air to be heated into said clearance space, air outlet means for discharging heated air from said clearance space into the space to be heated in the building structure, conduit means connected to said combustion enclosure and extending through said housing side wall upper portion for removing combustion gases from the interior of said combustion enclosure.
Claim 3
Dependent Claim
84 words
A freestanding fireplace stove in accordance with claim 1 wherein said fuel combustion means includes a grate for supporting a combustion medium, means for supporting said grate in said combustion enclosure adjacent said bottom end portion, an ash receptacle in said combustion enclosure bottom end portion below said grate means to permit the introduction of combustion air from the exterior of said housing into the interior of said combustion enclosure, and refractory material arranged along the inside of the sidewall of said combustion enclosure.
Claim 4
Dependent Claim
107 words
A fireplace stove in accordance with claim 2 including a supplementary enclosure having a sidewall, a bottom wall having at least one opening and an open upper end, means for mounting said enclosure within said housing bottom end in surrounding relation with the bottom end portion of said combustion enclosure, with said supplementary enclosure bottom wall in overlying engagement with said supporting surface, means for conducting air through said supporting surface and said supplementary enclosure, deflector means within the interior of said supplementary enclosure to direct the outside air over the upper surface of said deflector means and into both said combustion enclosure and said clearance space.
Claim 5
Dependent Claim
83 words
A fireplace stove in accordance with claim 3 wherein said deflector means includes a deflector panel, means for mounting said panel in the interior of said supplementary enclosure in vertically spaced relationship with said bottom wall, said deflector panel having a front marginal edge and a rear marginal edge defining with said bottom wall a pair of gaps for the passage of combustion air flowing through said bottom wall opening over the upper surface of said deflector panel in heat transfer relationship therewith.
Claim 6
Dependent Claim
42 words
A fireplace stove in accordance with claim 4 including a screen in each of said gaps for preventing the entry of insects from the space in the building structure and the exiting of combustion products to the exterior of said building structure.
Claim 7
Dependent Claim
46 words
A fireplace stove in accordance with claim 4 wherein the lower rear panels of said combustion enclosure sidewall, said intermediate partition, and said housing sidewall are disposed in spaced-apart relationship to provide an inlet to said clearance space for air from the space to be heated.
References Cited (Backward Citations)
US1470542A
Cited
US2181624A
Cited
US2231258A
Cited
GB561971A
Cited
US2375318A
Cited
US2752913A
Cited
US2821975A
Cited
GB857191A
Cited
US3910251A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-20 | 1981-08-22 | 1982-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-20 | 1985-08-22 | 1986-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-20 | 1989-08-22 | 1990-02-21 | $7700.00 | Window Closed / Lapsed |