US4215668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stove
Assignee: Individual
•
Filing: 1977-07-15
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Granted: 1980-08-05
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Expires: 1997-07-15
Abstract
Abstract A free standing stove having excellent thermal emission and fuel combustion characteristics comprising front, back, base, top and side plates of high strength, heat transmitting metal defining a main body of the stove. The interior of the main body of the stove is provided with a horizontal baffle plate disposed between top and base plates to divide the stove into a lower fuel-receiving and heating compartment and an upper heating compartment. The two compartments communicate by a passageway adjacent a side plate of the stove, and the side plate is provided with an access opening and door to permit insertion of fuel into the lower fuel-receiving compartment. The access door is provided with upper and lower dampers which may be adjusted to circulate air across the stove to retard the movement of combustion gases and by-products through the passageway communicating the upper and lower compartments, and to provide oxygen for combustion of the fuel in the upper and lower compartments, respectively. Flange means surround the top and side portions of the side access door opening and extend inwardly from the side plate to further facilitate direction of the air across the lower compartment and prevent escape of combustion gases and by-products from the access door when the door is opened to refuel the stove. The base plate of the stove is disposed in an upwardly extending plane from back to front of the stove to facilitate forward radiation of heat from the base plate of the stove into the room to be heated.
Inventors
- 👤 Brooks H. Holcombe
- 👤 Homer E. Elwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:11
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
309 words
A free standing stove having excellent thermal emission and fuel combustion characteristics comprising front, back, base, top, and side plates of high-strength, heat-transmitting metal defining a main body of said stove, support means attached to said main body to position said main body in spaced relation from a supporting floor, an access opening and closure door in one side plate of said main body for introducing fuel into said main body, a horizontal baffle plate positioned in the interior of said main body between said top and base plates and defining with said plates of said main body a lower, fuel-receiving and heating compartment and an upper heating compartment, said baffle plate attached to the back plate and opposite side plate from said one side plate of said main body and having a side edge positioned in spaced relation from said one side plate to define a passageway therebetween communicating said upper and lower compartments to permit passage of combustion gases and by-products from said lower fuel-receiving compartment into said upper heating compartment, outlet means in one of said main body plates communicating with said upper compartment for removal of combustion gases and by-products of combustion from said main body, lower damper means in said access door communicating with said lower compartment for introducing air into a lower portion of said lower compartment to provide oxygen for combustion of fuel in said lower compartment, flange means attached to and extending inwardly of said one side plate adjacent the top edge of said access opening, and upper damper means in said access door communicating with the upper portion of said lower compartment below said horizontal baffle plate and access opening flange means to provide air for circulation generally across said compartment to retard movement of combustion gases and by-products through said passageway from said lower compartment to said upper compartment.
Claim 2
Dependent Claim
309 words
A free standing stove having excellent thermal emission and fuel combustion characteristics comprising front, back, base, top, and side plates of high-strength, heat-transmitting metal defining a main body of said stove, support means attached to said main body to position said main body in spaced relation from a supporting floor, an access opening and closure door in one side plate of said main body for introducing fuel into said main body, a horizontal baffle plate positioned in the interior of said main body between said top and base plates and defining with said plates of said main body a lower, fuel-receiving and heating compartment and an upper heating compartment, said baffle plate attached to the back plate and opposite side plate from said one side plate of said main body and having a side edge positioned in spaced relation from said one side plate to define a passageway therebetween communicating said upper and lower compartments to permit passage of combustion gases and by-products from said lower fuel-receiving compartment into said upper heating compartment, outlet means in one of said main body plates communicating with said upper compartment for removal of combustion gases and by-products of combustion from said main body, lower damper means in said access door communicating with said lower compartment for introducing air into a lower portion of said lower compartment to provide oxygen for combustion of fuel in said lower compartment, flange means attached to and extending inwardly of said one side plate adjacent the top edge of said access opening, and upper damper means in said access door communicating with the upper portion of said lower compartment below said horizontal baffle plate and access opening flange means to provide air for circulation generally across said compartment to retard movement of combustion gases and by-products through said passageway from said lower compartment to said upper compartment.
Claim 3
Dependent Claim
98 words
A stove as defined in claim 1 wherein said flange means is attached to and extends inwardly of said one side plate about the top and side edges of said access opening, the upper extent of said flange means being positioned in a lower plane from the plane of said horizontal baffle plate to facilitate direction of air from said upper damper means in said access door across the lower compartment of said main body, said flange means further serving to retard escape of combustion gases and by-products from said access opening when said access door is open.
Claim 4
Dependent Claim
34 words
A stove as defined in claim 2 wherein portions of said flange means extending inwardly of said one side plate about side edges of said access opening taper downwardly toward said one side plate.
Claim 5
Dependent Claim
65 words
A stove as defined in claim 1 wherein said support means are attached to said base plate to position said base plate in a plane extending upwardly from back to front plate of said main body to provide forward radiation of heat from said base plate and to facilitate concentration of fuel in the back portion of said lower compartment during combustion of the fuel.
Claim 6
Dependent Claim
26 words
A stove as defined in claim 5 wherein said base plate extends upwardly at an angle of no more than about 15 degrees with the horizontal.
Claim 7
Dependent Claim
45 words
A stove as defined in claim 1 wherein each of said damper means includes an opening through said access door for the passage of air into lower compartment, and adjustable closure means for said opening to regulate flow of air into said lower compartment therethrough.
Claim 8
Dependent Claim
43 words
A stove as defined in claim 1 including a layer of heat resistant material lining the inside surface of said base plate and the lower inside surface portion of said back plate to support fuel inserted into said lower compartment of said stove.
Claim 9
Dependent Claim
50 words
A stove as defined in claim 1 wherein said outlet means in one of said main body plates communicating with said upper compartment comprises a horizontal pipe attached to and extending inwardly through the upper central portion of said back plate and into said upper compartment of said main body.
Claim 10
Dependent Claim
44 words
A stove as defined in claim 1 including one or more observation ports in said front plate, and screen means attached to said front plate in outward spaced relation therefrom to prevent accidental contact of said front plate when the stove is in use.
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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) | 1983-08-05 | 1984-02-04 | 1984-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-05 | 1988-02-04 | 1988-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-05 | 1992-02-04 | 1992-08-05 | $7700.00 | Window Closed / Lapsed |