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US4036151A Expired / Lapsed US ⏱️ 0.0 years remaining

Microwave cooking apparatus with turntable

Assignee: Sharp Corp
•
Filing: 1975-06-26
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Granted: 1977-07-19
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Expires: 1995-06-26
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Abstract

Abstract In a type of the microwave cooking apparatus provided with a turntable rotating foodstuffs within the oven cavity to effect uniform heating, the turntable is provided to freely couple with or separate from a power transmission system including a power source. In particular, the turntable is utilized as a foodstuff shelf within the oven cavity when the it is associated with the power transmission system and also is utilized as a cooking tray when it is removed from the power transmission system and desposed directly on a dining table.

Inventors

  • 👤 Yasuo Shin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 10:11
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/6408; H05B6/6411; A; A47; A47J; A47J37/00; A47J37/04; A47J37/046; Y; Y10; Y10S; Y10S99/00; Y10S99/14

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 161 words
A turntable for use in a microwave oven, made of a low dielectric loss inorganic material such as glass and ceramics and adapted to rotate a foodstuff mounted thereon at the base portion of said microwave oven during cooking, said turntable being removably engaged with the base of the microwave oven and comprising: a raised edge provided at the peripheral portion of the upper surface thereof and serving as a drain for collecting the liquid ingredients from the foodstuff; a connection provided on the turntable and removably engaged with a source of driving force for rotating said turntable, said engagement providing a pedestal for rotation of said turntable; and one or more legs provided at the lower surface thereof for stabilizing the turntable when positioned on a level surface, whereby said turntable, because of its removable engagement with the driving source, functioning as a foodstuff supporter within the oven and as a tableware when the turntable is removed from the oven.
Claim 2
Dependent Claim 161 words
A turntable for use in a microwave oven, made of a low dielectric loss inorganic material such as glass and ceramics and adapted to rotate a foodstuff mounted thereon at the base portion of said microwave oven during cooking, said turntable being removably engaged with the base of the microwave oven and comprising: a raised edge provided at the peripheral portion of the upper surface thereof and serving as a drain for collecting the liquid ingredients from the foodstuff; a connection provided on the turntable and removably engaged with a source of driving force for rotating said turntable, said engagement providing a pedestal for rotation of said turntable; and one or more legs provided at the lower surface thereof for stabilizing the turntable when positioned on a level surface, whereby said turntable, because of its removable engagement with the driving source, functioning as a foodstuff supporter within the oven and as a tableware when the turntable is removed from the oven.
Claim 3
Dependent Claim 25 words
A turntable as defined in claim 1, wherein said raised edge defines an annular groove disposed at the peripheral portion of the upper surface thereof.
Claim 4
Dependent Claim 33 words
A turntable as defined in claim 1, wherein said connection comprises a swelling extending from the lower surface of said turntable to removably engage with a depression operatively associated with the driving source.
Claim 5
Dependent Claim 34 words
A turntable as defined in claim 1, wherein said connection comprises teeth formed at the peripheral sidewall of the turntable and adapted to mesh with a transmission gear operatively associated with the driving source.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-07-18 1981-01-17 1981-07-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-07-18 1985-01-17 1985-07-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-07-18 1989-01-17 1989-07-19 $7700.00 Window Closed / Lapsed

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