Patent US4449026A successfully refreshed from Google Patents.
US4449026A
Expired / Lapsed
US
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High frequency and steam heating method and apparatus
Assignee: Toshiba Corp
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Filing: 1983-03-02
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Granted: 1984-05-15
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Expires: 2003-03-02
Abstract
Abstract A high frequency heating apparatus comprising an oven for accommodating an object to be cooked, a steam generator for supplying steam into the oven, a high frequency generator for supplying high frequency waves into said oven for cooking, and wherein said high frequency generator and said steam generator are alternately driven to cook the object with alternate heating of high frequency wave and steam.
Inventors
- 👤 Seiichi Satoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:23
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/6408; H05B6/6411
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
169 words
A high frequency heating apparatus comprising: a housing; an oven provided within said housing; a high frequency generator provided within said housing for supplying a high frequency wave into said oven; a steam generator provided within said housing for supplying steam into said open, the steam generator utilizing as a heat source a high frequency wave generated by said high frequency generator; microwave circulator means for selectively directing a high frequency wave from said high frequency generator to said oven or said steam generator; and a control circuit including: a steam generator timer for setting an energization period of said high frequency generator, and a high frequency generator timer for setting an energization period of said high frequency generator, and drive means for driving said steam generator before said high frequency generator in each cooking cycle and for independently controlling the energization periods of said high frequency generator and said steam generator in response to the operations of said high frequency generator timer and said steam generator timer, respectively.
Claim 2
Dependent Claim
169 words
A high frequency heating apparatus comprising: a housing; an oven provided within said housing; a high frequency generator provided within said housing for supplying a high frequency wave into said oven; a steam generator provided within said housing for supplying steam into said open, the steam generator utilizing as a heat source a high frequency wave generated by said high frequency generator; microwave circulator means for selectively directing a high frequency wave from said high frequency generator to said oven or said steam generator; and a control circuit including: a steam generator timer for setting an energization period of said high frequency generator, and a high frequency generator timer for setting an energization period of said high frequency generator, and drive means for driving said steam generator before said high frequency generator in each cooking cycle and for independently controlling the energization periods of said high frequency generator and said steam generator in response to the operations of said high frequency generator timer and said steam generator timer, respectively.
Claim 3
Dependent Claim
47 words
A high frequency heating apparatus according to claim 1, wherein said microwave circulator means comprises wave guides for guiding a high frequency wave from the high frequency generator to said steam generator and said oven, and electromagnetic means provided at a predetermined point on said wave guides.
Claim 4
Dependent Claim
168 words
A high frequency heating apparatus comprising: a housing; an oven provided within said housing; a high frequency generator provided within said housing for supplying a high frequency wave into said open; a steam generator provided within said housing for supplying steam into said oven, the steam generator utilizing as a heat source a high frequency wave generated by said high frequency generator, and the steam generated by said steam generator being conducted into said oven through openings made in both side walls of said oven; and a control circuit including: a steam generator timer for setting an energization period of said steam generator, a high frequency generator timer for setting an energization period of said high frequency generator, and drive means for driving said steam generator before said high frequency generator in each cooking cycle and for independently controlling the energization periods of said high frequency generator and said steam generator in response to the operations of said high frequency generator timer and said steam generator timer, respectively.
Claim 5
Dependent Claim
168 words
A high frequency heating apparatus comprising: a housing; an oven provided within said housing; a high frequency generator provided within said housing for supplying a high frequency wave into said open; a steam generator provided within said housing for supplying steam into said oven, the steam generator utilizing as a heat source a high frequency wave generated by said high frequency generator, and the steam generated by said steam generator being conducted into said oven through openings made in both side walls of said oven; and a control circuit including: a steam generator timer for setting an energization period of said steam generator, a high frequency generator timer for setting an energization period of said high frequency generator, and drive means for driving said steam generator before said high frequency generator in each cooking cycle and for independently controlling the energization periods of said high frequency generator and said steam generator in response to the operations of said high frequency generator timer and said steam generator timer, respectively.
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GB1029124A
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GB1540295A
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US4137442A
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GB1499279A
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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) | 1987-05-15 | 1987-11-14 | 1988-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-15 | 1991-11-14 | 1992-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-15 | 1995-11-14 | 1996-05-15 | $7700.00 | Window Closed / Lapsed |