US4375213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-clean oven
Assignee: Goodman Co LP
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Filing: 1981-10-23
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Granted: 1983-03-01
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Expires: 2001-10-23
Abstract
Abstract A self-clean oven having means for passing cooling air over the heated walls of the oven and further having means for supplying combustion air by normal inspiration to the oven burners independently of the flow of cooling air, and having still further means for mixing hot combustion products exhausted from the interior of the oven with exhausted cooling air to prevent passage of excessively hot air into the atmosphere.
Inventors
- 👤 Wayne T. Kemp
- 👤 Domenick Saponara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:04
CPC Classifications
F; F24; F24C; F24C14/00; F24C14/02; F24C14/025; F24C15/00; F24C15/006
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
299 words
An oven comprising the combination of an oven compartment having top, bottom, back and side walls, a first burner in the oven compartment, an air chamber enclosing said top, bottom, back and side walls of the oven compartment, said air chamber having entrance opening at the front of the oven below the oven compartment and an exit aperture at the front of the oven above the oven compartment, an air cavity located beneath the oven compartment between the oven compartment and adjacent portions of said air chamber, said air cavity having apertured walls separating it from the adjacent portions of the air chamber, a burner box located between said bottom of said compartment and said air cavity, a second burner positioned in said burner box, a first duct located between said burner box and said air cavity, said first duct communicating with said burner box through a plurality of holes in the floor of said burner box for providing secondary combustion air to said second burner, a second duct located within said air chamber and extending from said entrance opening beneath said air cavity and upwardly along the back walls of said air cavity and compartment, said first and second burners extending into said second duct through respective apertures in said back wall of said compartment and the back wall of said burner box for receiving primary combustion air, said first duct communicating with said second duct for receiving said secondary combustion air, a plurality of blowers mounted on side walls of said air cavity for drawing in cooling air from said air chamber below said air cavity and for forcing said cooling air into said air chamber at the sides and back of said air cavity, said cooling air being substantially isolated from said primary and secondary air.
Claim 2
Dependent Claim
299 words
An oven comprising the combination of an oven compartment having top, bottom, back and side walls, a first burner in the oven compartment, an air chamber enclosing said top, bottom, back and side walls of the oven compartment, said air chamber having entrance opening at the front of the oven below the oven compartment and an exit aperture at the front of the oven above the oven compartment, an air cavity located beneath the oven compartment between the oven compartment and adjacent portions of said air chamber, said air cavity having apertured walls separating it from the adjacent portions of the air chamber, a burner box located between said bottom of said compartment and said air cavity, a second burner positioned in said burner box, a first duct located between said burner box and said air cavity, said first duct communicating with said burner box through a plurality of holes in the floor of said burner box for providing secondary combustion air to said second burner, a second duct located within said air chamber and extending from said entrance opening beneath said air cavity and upwardly along the back walls of said air cavity and compartment, said first and second burners extending into said second duct through respective apertures in said back wall of said compartment and the back wall of said burner box for receiving primary combustion air, said first duct communicating with said second duct for receiving said secondary combustion air, a plurality of blowers mounted on side walls of said air cavity for drawing in cooling air from said air chamber below said air cavity and for forcing said cooling air into said air chamber at the sides and back of said air cavity, said cooling air being substantially isolated from said primary and secondary air.
Claim 3
Dependent Claim
32 words
An oven as set forth in claim 1 further comprising an exhaust duct located within the air chamber and communicating at one end with the oven compartment for removal of combustion air.
Claim 4
Dependent Claim
36 words
An oven as set forth in claim 2 wherein the oven is provided above the oven compartment with aperture means for exhaust of cooling air from the air chamber and combustion air from the exhaust duct.
Claim 5
Dependent Claim
62 words
An oven as set forth in claim 3 wherein said aperture means comprises a first aperture communicating with said air chamber, and a second aperture communicating with the exhaust duct, the second aperture being located beneath said first aperture whereby heated combustion air from the oven compartment upon rising from the second aperture will mix with cooling air from the first aperture.
Claim 6
Dependent Claim
289 words
A built-in self-cleaning oven comprising the combination of an oven compartment having top, bottom, back and side walls, a broil burner located in an upper portion of the oven compartment, a bake burner located in a lower portion of the oven compartment, an air cavity beneath the bottom wall of the oven compartment and having back, bottom and side walls, an air chamber enclosing the backs and sides of the oven compartment and the air cavity, the bottom wall of the air cavity and the top wall of the oven compartment, an oven shelf above the bake burner, an apertured duct beneath the bake burner, a combustion air duct within the air chamber and extending beneath the air cavity and upwardly along the back walls of the air cavity and oven compartment, said burners being connected with said air duct to receive primary combustion air therefrom, said apertured duct being connected with the combustion air duct to receive therefrom secondary combustion air for the bake burner, an exhaust duct in the portion of the air chamber above the oven compartment, an opening in the top wall of the oven compartment communicating with said exhaust duct, the broil burner being located in the oven compartment at said opening whereby combustion products being exhausted from the oven compartment will be incinerated by said broil burner, and a blower mounted in said air cavity for drawing in cooling air from said air chamber through holes in said bottom wall of said air cavity and for generating a flow of cooling air upwardly through said air chamber enclosing said sides and backs respectively of said air cavity and said compartment, said cooling air being substantially isolated from said primary and secondary combustion air.
Claim 7
Dependent Claim
289 words
A built-in self-cleaning oven comprising the combination of an oven compartment having top, bottom, back and side walls, a broil burner located in an upper portion of the oven compartment, a bake burner located in a lower portion of the oven compartment, an air cavity beneath the bottom wall of the oven compartment and having back, bottom and side walls, an air chamber enclosing the backs and sides of the oven compartment and the air cavity, the bottom wall of the air cavity and the top wall of the oven compartment, an oven shelf above the bake burner, an apertured duct beneath the bake burner, a combustion air duct within the air chamber and extending beneath the air cavity and upwardly along the back walls of the air cavity and oven compartment, said burners being connected with said air duct to receive primary combustion air therefrom, said apertured duct being connected with the combustion air duct to receive therefrom secondary combustion air for the bake burner, an exhaust duct in the portion of the air chamber above the oven compartment, an opening in the top wall of the oven compartment communicating with said exhaust duct, the broil burner being located in the oven compartment at said opening whereby combustion products being exhausted from the oven compartment will be incinerated by said broil burner, and a blower mounted in said air cavity for drawing in cooling air from said air chamber through holes in said bottom wall of said air cavity and for generating a flow of cooling air upwardly through said air chamber enclosing said sides and backs respectively of said air cavity and said compartment, said cooling air being substantially isolated from said primary and secondary combustion air.
Claim 8
Dependent Claim
60 words
An oven as set forth in claim 5 wherein the bottom, back and side walls of the air cavity are apertured to provide communication between the air cavity and adjacent portions of the air chamber, and at least one blower is located in the air cavity for forcing cooling air through the air cavity into and through the air chamber.
Claim 9
Dependent Claim
35 words
An oven as set forth in claim 6 wherein front apertures are provided below the oven cavity in communication with both said combustion air duct and said air chamber for passage of air separately thereinto.
Claim 10
Dependent Claim
54 words
An oven as set forth in claim 6 wherein the oven is provided with exit air aperture means located in the front thereof above the oven compartment and communicating with both the air chamber and the exhaust duct for exhaust of cooling air from the air chamber and combustion air from the exhaust duct.
Claim 11
Dependent Claim
50 words
An oven as set forth in claim 8 wherein said aperture means comprises first and second apertures, the first aperture communicating with said air chamber for exit of cooling air therefrom, and a second aperture communicating with the exhaust duct for exit of heated combustion air from the oven compartment.
Claim 12
Dependent Claim
38 words
An oven as set forth in claim 9 wherein said second aperture is located beneath said first aperture whereby heated combustion air upon rising from the second aperture will mix with cooling air passing from the first aperture.
References Cited (Backward Citations)
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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) | 1986-02-28 | 1986-08-30 | 1987-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-28 | 1990-08-30 | 1991-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-28 | 1994-08-30 | 1995-03-01 | $7700.00 | Window Closed / Lapsed |