US4549055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilating means for cooking apparatus
Assignee: Whirlpool Corp
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Filing: 1983-12-12
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Granted: 1985-10-22
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Expires: 2003-12-12
Abstract
Abstract A cooking apparatus wherein a control for controlling the operation of one or more portions thereof is located in a position where it could be affected by hot, contaminated air rising from heating portions of the apparatus. The control is mounted in a cabinet space which is pressurized so as to prevent hot, contaminated air from entering the space, thereby effectively avoiding deleterious effect. Pressurizing air is drawn from a location free of the hot, contaminated air from the cooking units. The drawn pressurizing air is also delivered to an oven cavity of the apparatus connected in series air flow relationship with the space in which the control is located.
Inventors
- 👤 Charles F. Kohler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:01
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/642; F; F24; F24C; F24C15/00; F24C15/20; F24C15/2042
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
98 words
In a cooking apparatus having cabinet means defining an oven cavity and a control space, and electrical control means in said control space for energizing the cooking apparatus, improved ventilating means comprising: first supply means for drawing air from said control space and providing the drawn air as pressurized air to said oven cavity; second supply means for providing pressurized air to said control space; and discharge means for discharging the pressurized air from said oven cavity, said first and second supply means and discharge means being cooperatively arranged to maintain an above-ambient pressure at said control means.
Claim 2
Dependent Claim
98 words
In a cooking apparatus having cabinet means defining an oven cavity and a control space, and electrical control means in said control space for energizing the cooking apparatus, improved ventilating means comprising: first supply means for drawing air from said control space and providing the drawn air as pressurized air to said oven cavity; second supply means for providing pressurized air to said control space; and discharge means for discharging the pressurized air from said oven cavity, said first and second supply means and discharge means being cooperatively arranged to maintain an above-ambient pressure at said control means.
Claim 3
Dependent Claim
31 words
The cooking apparatus of claim 1 further including second discharge means for discharging the pressurized air from said control space while maintaining the pressure in said control space above ambient pressure.
Claim 4
Dependent Claim
17 words
The cooking apparatus of claim 2 wherein said first and second discharge means are spaced substantially apart.
Claim 5
Dependent Claim
126 words
In a cooking apparatus having cabinet means defining an oven cavity and a control space, and electrical control means in said space for energizing the cooking apparatus, improved ventilating means comprising: first supply means for drawing air from said control space and providing the drawn air as pressurized air to said oven cavity; second supply means for providing clean pressurized air to said control space as an incident of the temperature in said cabinet exteriorly of said oven cavity rising above a preselected temperature as a result of energization of the cooking apparatus; and discharge means for discharging the pressurized air from said oven cavity, said first and second supply means and discharge means being cooperatively arranged to maintain an above-ambient pressure throughout said cabinet means.
Claim 6
Dependent Claim
126 words
In a cooking apparatus having cabinet means defining an oven cavity and a control space, and electrical control means in said space for energizing the cooking apparatus, improved ventilating means comprising: first supply means for drawing air from said control space and providing the drawn air as pressurized air to said oven cavity; second supply means for providing clean pressurized air to said control space as an incident of the temperature in said cabinet exteriorly of said oven cavity rising above a preselected temperature as a result of energization of the cooking apparatus; and discharge means for discharging the pressurized air from said oven cavity, said first and second supply means and discharge means being cooperatively arranged to maintain an above-ambient pressure throughout said cabinet means.
Claim 7
Dependent Claim
20 words
The cooking apparatus of claim 4 wherein said control means comprises means for providing microwave energy to said oven cavity.
Claim 8
Dependent Claim
19 words
The cooking apparatus of claim 4 wherein said cooking apparatus further includes heating means spaced subjacent said cabinet means.
Claim 9
Dependent Claim
41 words
The cooking apparatus of claim 4 wherein said cooking apparatus further includes heating means spaced subjacent said cabinet means, said second supply means having an inlet disposed to provide air to said control space other than from above said heating means.
Claim 10
Dependent Claim
32 words
The cooking apparatus of claim 4 wherein said cooking apparatus further includes heating means spaced subjacent said cabinet means, said control means further including means for controlling energization of said heating means.
Claim 11
Dependent Claim
132 words
In a cooking apparatus having cabinet means defining an upper portion defining an oven cavity and a control space, heating means subjacent said upper portion of the cabinet means, and electrical control means in said control space for energizing the cooking apparatus, improved ventilating means comprising: first supply means for drawing air from said control space and providing the drawn air as pressurized air to said oven cavity; second supply means for providing clean pressurized air to said control space and having an inlet disposed to provide air to said control space other than from above said heating means; and discharge means for discharging the pressurized air from said oven cavity, said first and second supply means and discharge means being cooperatively arranged to maintain an above-ambient pressure at said control means.
Claim 12
Dependent Claim
132 words
In a cooking apparatus having cabinet means defining an upper portion defining an oven cavity and a control space, heating means subjacent said upper portion of the cabinet means, and electrical control means in said control space for energizing the cooking apparatus, improved ventilating means comprising: first supply means for drawing air from said control space and providing the drawn air as pressurized air to said oven cavity; second supply means for providing clean pressurized air to said control space and having an inlet disposed to provide air to said control space other than from above said heating means; and discharge means for discharging the pressurized air from said oven cavity, said first and second supply means and discharge means being cooperatively arranged to maintain an above-ambient pressure at said control means.
Claim 13
Dependent Claim
34 words
The cooking apparatus of claim 9 wherein said cabinet means defines a rear wall having an upper portion and said second supply means inlet opens through said rear wall at said upper portion thereof.
Claim 14
Dependent Claim
65 words
The cooking apparatus of claim 9 wherein said cabinet means defines a rear wall having an upper portion and said second supply means inlet opens through said rear wall at said upper portion thereof, said cabinet means further defining a front wall and said discharge means opens through said front wall in a direction oppositely to the opening of said inlet through said rear wall.
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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) | 1988-10-21 | 1989-04-22 | 1989-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-21 | 1993-04-22 | 1993-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-21 | 1997-04-22 | 1997-10-22 | $7700.00 | Window Closed / Lapsed |