US4335291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Popped corn making apparatus used in a microwave oven
Assignee: TDK Corp
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Filing: 1980-04-04
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Granted: 1982-06-15
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Expires: 2000-04-04
Abstract
Abstract A popped corn making apparatus used in a microwave oven comprises a bowl having an opening at the upper part and a narrow closed bottom and a substantially conical shape; and a resonator placed at the bottom of said bowl. The electric field resulted by resonance of said resonator under an application of microwave, is applied to grains of corn contained in said bowl to produce a popped corn. It is possible to use a lumped element resonator comprising a one turn coil having a ring shape having an opening which is placed at the bottom of said bowl and which is formed by an inductance provided by said coil and a capacitance provided by said bowl and said grains of corn.
Inventors
- 👤 Ken Ishino
- 👤 Taro Miura
- 👤 Yasuo Hashimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:01
CPC Classifications
A; A47; A47J; A47J36/00; A47J36/02; A47J36/027; A23; A23L; A23L7/00; A23L7/10; A23L7/161; A23L7/174; A23L7/183; A23L7/187
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
70 words
A popped corn making apparatus used in a microwave oven which comprises a bowl having an opening at the upper part and a narrow closed bottom and a substantially conical shape; and a resonator placed at the bottom of said bowl whereby electric field resulted by resonance of said resonator under an application of microwave, is applied to grains of corn contained in said bowl to produce a popped corn.
Claim 2
Dependent Claim
70 words
A popped corn making apparatus used in a microwave oven which comprises a bowl having an opening at the upper part and a narrow closed bottom and a substantially conical shape; and a resonator placed at the bottom of said bowl whereby electric field resulted by resonance of said resonator under an application of microwave, is applied to grains of corn contained in said bowl to produce a popped corn.
Claim 3
Dependent Claim
16 words
A popped corn making apparatus according to claim 1 wherein said resonator is a cavity resonator.
Claim 4
Dependent Claim
18 words
A popped corn making apparatus according to claim 1 wherein said resonator is a coaxial line type resonator.
Claim 5
Dependent Claim
16 words
A popped corn making apparatus according to claim 1 wherein said resonator is a dielectric resonator.
Claim 6
Dependent Claim
117 words
A popped corn making apparatus used in a microwave oven which comprises a bowl having an opening at the upper part and a narrow closed bottom and a substantially conical shape; and a lumped element resonator having a predetermined resonance frequency, which comprises a one turn coil having a ring shape having an opening which is placed at the bottom of said bowl and which is formed by an inductance provided by said coil and a capacitance provided by said bowl and said grains of corn, whereby the electric field resulted by the resonance of said resonator under an application of microwave is applied to grains of corn contained in said bowl to produce a popped corn.
Claim 7
Dependent Claim
117 words
A popped corn making apparatus used in a microwave oven which comprises a bowl having an opening at the upper part and a narrow closed bottom and a substantially conical shape; and a lumped element resonator having a predetermined resonance frequency, which comprises a one turn coil having a ring shape having an opening which is placed at the bottom of said bowl and which is formed by an inductance provided by said coil and a capacitance provided by said bowl and said grains of corn, whereby the electric field resulted by the resonance of said resonator under an application of microwave is applied to grains of corn contained in said bowl to produce a popped corn.
Claim 8
Dependent Claim
23 words
A popped corn making apparatus according to claim 5 wherein a plurality of resonators having different resonance frequency are used as said resonator.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-14 | 1985-12-14 | 1986-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-14 | 1989-12-14 | 1990-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-14 | 1993-12-14 | 1994-06-15 | $7700.00 | Window Closed / Lapsed |