US4378729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for preparing pizza in a baking oven
Assignee: Individual
•
Filing: 1981-12-11
•
Granted: 1983-04-05
•
Expires: 2001-12-11
Abstract
Abstract A method is provided for uniformly heating chilled pizza within an oven by supporting the pizza in a horizontal position, guiding or directing a stream of hot air upwardly onto the center of the pizza while shielding its periphery from radiation emanating from the oven heat source. An oven appliance is provided including a grill portion at the top composed of openwork for supporting the pizza and a connected, usually integral base spaced below the outer, i.e. periferal portion of the grill and a baffle having a central vent opening for funneling a stream of hot air upwardly onto the middle of the lower surface of the pizza. The baffle also acts as a heat shield interposed between the infrared radiating heat source and the periphery of the pizza. The grill portion preferably comprises a plurality of vertically disposed radially arranged flanges or webs extending upwardly from the baffle and having coplanar upper edges defining a food support surface.
Inventors
- 👤 Richard L. Pierick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:25
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/16; A; A21; A21B; A21B1/00; A21B1/02; A21B1/24; A21B1/26; Y; Y10; Y10S; Y10S99/00; Y10S99/15
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
157 words
An oven appliance for heating pizza comprising a base including a baffle with a vent opening of smaller cross sectional dimension than the diameter of the pizza, a plurality of upwardly extending risers integral with the baffle and having coplanar upper edges defining a pizza supporting surface above the base in a position to enable the pizza to be centered thereon directly over the vent opening in the baffle, the supporting surface being open to allow air to flow freely across the lower surface of the pizza, and the baffle serving as a shield means surrounding the vent opening and positioned below the support surface to shield the peripheral edge of the pizza from infrared radiation arising from beneath said baffle, the hot air rising through the vent opening will strike the center of the lower surface of the pizza to thereby disrupt and reduce stagnant boundary layer air whereby the pizza will be heated uniformly thereby.
Claim 2
Dependent Claim
157 words
An oven appliance for heating pizza comprising a base including a baffle with a vent opening of smaller cross sectional dimension than the diameter of the pizza, a plurality of upwardly extending risers integral with the baffle and having coplanar upper edges defining a pizza supporting surface above the base in a position to enable the pizza to be centered thereon directly over the vent opening in the baffle, the supporting surface being open to allow air to flow freely across the lower surface of the pizza, and the baffle serving as a shield means surrounding the vent opening and positioned below the support surface to shield the peripheral edge of the pizza from infrared radiation arising from beneath said baffle, the hot air rising through the vent opening will strike the center of the lower surface of the pizza to thereby disrupt and reduce stagnant boundary layer air whereby the pizza will be heated uniformly thereby.
Claim 3
Dependent Claim
22 words
The appliance of claim 1 wherein the risers are plate-like members integral with the baffle and supported thereby at their lower ends.
Claim 4
Dependent Claim
18 words
The appliance of claim 2 wherein the risers and baffle are formed from metal molded as one piece.
Claim 5
Dependent Claim
25 words
The appliance of claim 3 wherein the risers are radially arranged, extending outwardly from a center in alignment with the center of the vent opening.
Claim 6
Dependent Claim
28 words
The appliance of claim 3 wherein a centrally curved upwardly extending air guiding faring is provided around the periphery of the vent opening and integral with the baffle.
Claim 7
Dependent Claim
70 words
The appliance of claim 1 wherein the entire appliance is of one piece integral construction with said risers comprising radially arranged plates integral with the baffle at their lower edges and extending radially from a center and aligned with the center of the vent opening, an upwardly directed edge is provided around the vent opening and a second such edge is provided around the outer peripheral part of the baffle.
Claim 8
Dependent Claim
43 words
The appliance of claim 6 wherein the risers are of different lengths with some extending substantially to the center and some extending only part way to the center of the appliance to provide uniform support for the pizza and facilitate cleaning between them.
Claim 9
Dependent Claim
31 words
The appliance of claim 6 wherein the risers have the shape of an inverted U as seen in cross-section and each includes two parallel walls connected together at their upper edges.
Claim 10
Dependent Claim
30 words
The appliance of claim 8 wherein the risers are formed in the baffle by stamping a flat piece of sheet metal to define parallel walls connected at their upper edges.
Claim 11
Dependent Claim
13 words
The appliance of claim 5 wherein the appliance is formed from molded aluminum.
Claim 12
Dependent Claim
22 words
The appliance of claim 6 wherein the appliance is composed of molded metal at least partially covered with a food releasing coating.
Claim 13
Dependent Claim
17 words
The appliance of claim 11 wherein the coating is Teflon and the appliance is formed from aluminum.
Claim 14
Dependent Claim
22 words
The appliance of claim 1 wherein the risers comprise pins connected at their lower ends to the baffle and extending upwardly therefrom.
Claim 15
Dependent Claim
26 words
The appliance of claim 13 wherein the pins are arranged in a circle having a diameter different from said pizza whereby drippings fall between said pins.
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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) | 1986-04-04 | 1986-10-04 | 1987-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-04-04 | 1990-10-04 | 1991-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-04-04 | 1994-10-04 | 1995-04-05 | $7700.00 | Window Closed / Lapsed |