US4306133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave pie baking
Assignee: Individual
•
Filing: 1979-02-14
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Granted: 1981-12-15
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Expires: 1999-02-14
Abstract
Abstract An apparatus is described to bake meat or fruit pies with full top and bottom crusts while in their metal plates in a microwave oven. The pie is baked in an enclosure designed to contain said pie, in steam generated by said pie, while microwave energy, by direct exposure, simultaneously (1) bakes said pie's top crust and (2) converts to heat within a microwave-lossy heating element which heating element in contact with said metal pie plate, on heating, bakes said pie's bottom crust. Described are methods to create superheated steam and trap condensed water within said enclosure. Described are novel microwave-oven, microwave-lossy heating elements made of two metal sheets sandwiching a microwave-absorptive material.
Inventors
- 👤 Melvin L. Levinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:20
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/647; H05B6/6491; H05B6/6494
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
89 words
Apparatus to bake, in a metal pie plate, a pie with a full top and bottom crust in a microwave oven which comprises: a microwave-permeable, heat-insulating container whose inner walls and floor define a chamber to bake said pie therein, a microwave-lossy heating member within said chamber to heat by conduction, at least, the bottom of said metal pie plate when said pie in its metal pie plate is baked thereon, and metal means to support said heating member in a spaced relationship above the floor of said chamber.
Claim 2
Dependent Claim
89 words
Apparatus to bake, in a metal pie plate, a pie with a full top and bottom crust in a microwave oven which comprises: a microwave-permeable, heat-insulating container whose inner walls and floor define a chamber to bake said pie therein, a microwave-lossy heating member within said chamber to heat by conduction, at least, the bottom of said metal pie plate when said pie in its metal pie plate is baked thereon, and metal means to support said heating member in a spaced relationship above the floor of said chamber.
Claim 3
Dependent Claim
48 words
Apparatus to bake a pie, according to claim 1, which includes: where said metal means to support said heating element includes a member remote from said heating element which is designed to shield microwave lossy liquid in said remote member's immediate proximity from direct exposure to microwave radiation.
Claim 4
Dependent Claim
19 words
Apparatus to bake a pie, according to claim 1, which includes: microwave-permeable, heat-insulating means added beneath said heating member.
Claim 5
Dependent Claim
88 words
Apparatus to bake, in a metal pie plate, a pie with a full top and bottom crust in a microwave oven which comprises: a microwave-permeable, heat-insulating enclosure designed to bake a pie therein, a microwave-lossy heating member within said enclosure which weighs between 50% and 150% of said pie's weight, and a metal member with a first surface in contact with said microwave-lossy member and a second surface designed to contact, at least, the bottom of said metal pie plate when said pie is baked within said enclosure.
Claim 6
Dependent Claim
88 words
Apparatus to bake, in a metal pie plate, a pie with a full top and bottom crust in a microwave oven which comprises: a microwave-permeable, heat-insulating enclosure designed to bake a pie therein, a microwave-lossy heating member within said enclosure which weighs between 50% and 150% of said pie's weight, and a metal member with a first surface in contact with said microwave-lossy member and a second surface designed to contact, at least, the bottom of said metal pie plate when said pie is baked within said enclosure.
Claim 7
Dependent Claim
43 words
Apparatus to bake a pie, according to claim 4, which includes: where said metal member is fabricated and disposed so as to prevent any filling which boils out of said pie during an exposure to microwave radiation from directly contacting said heating member.
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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) | 1984-12-14 | 1985-06-15 | 1985-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-14 | 1989-06-15 | 1989-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-14 | 1993-06-15 | 1993-12-15 | $7700.00 | Window Closed / Lapsed |