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US4952765A Expired / Lapsed US ⏱️ 0.0 years remaining

Cooker for use in microwave oven

Assignee: Daiya Sangyo Co Ltd
•
Filing: 1989-07-06
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Granted: 1990-08-28
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Expires: 2009-07-06
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Abstract

Abstract A cooker adapted for use in a microwave oven and comprising: a vessel for holding a material to be cooked and water; an outside lid for covering the vessel; and an inside cover disposed between the vessel and the outside lid and capable of storing components boiled over from the contents in the vessel during a boiling stage thereof, and capable of returning the boiled-over components to the vessel after the boiling stage. In this cooker, the inside cover is provided with a hole for returning the boiled-over components to the vessel and is supported so as to be able to move in a vertical direction, a vapor path is formed by the inside cover, the vessel and the outside lid in a peripheral portion of the inside cover when the inside cover is raised by an inner pressure of the vessel, and a closing member is provided in the outside lid, which member is capable of closing the hole for returning the boiled-over components when the inside cover is raised by the inner pressure of the vessel. The vessel also can be provided with a double wall construction.

Inventors

  • 👤 Manabu Toyosawa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 18:13
CPC Classifications
A; A47; A47J; A47J27/00; A47J27/56; A47J27/62; A47J36/00; A47J36/02; A47J36/027; Y; Y10; Y10S; Y10S99/00; Y10S99/14

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 173 words
A cooker adapted for use in a microwave oven, comprising: a vessel for holding a material to be cooked and water; an outside lid for covering the vessel; and an inside cover disposed between the vessel and the outside lid and capable of storing components boiled over from the contents in the vessel during a boiling stage thereof, and capable of returning the boiled-over components to the vessel after the boiling stage; the inside cover being provided with a hole for returning the boiled-over components to the vessel and is supporting so as to be able to move in a vertical direction; a vapor path being formed by the inside cover, the vessel and the outside lid in a peripheral portion of the inside cover when the inside cover is raised by an inner pressure of the vessel, and a closing member being provided in the outside lid, which member is capable of closing said hole in said inside cover when the inside cover is raised by the inner pressure of the vessel.
Claim 2
Dependent Claim 173 words
A cooker adapted for use in a microwave oven, comprising: a vessel for holding a material to be cooked and water; an outside lid for covering the vessel; and an inside cover disposed between the vessel and the outside lid and capable of storing components boiled over from the contents in the vessel during a boiling stage thereof, and capable of returning the boiled-over components to the vessel after the boiling stage; the inside cover being provided with a hole for returning the boiled-over components to the vessel and is supporting so as to be able to move in a vertical direction; a vapor path being formed by the inside cover, the vessel and the outside lid in a peripheral portion of the inside cover when the inside cover is raised by an inner pressure of the vessel, and a closing member being provided in the outside lid, which member is capable of closing said hole in said inside cover when the inside cover is raised by the inner pressure of the vessel.
Claim 3
Dependent Claim 14 words
A cooker according to claim 1, wherein the vessel has a double wall construction.

References Cited (Backward Citations)

US1341731A Cited
US1468908A Cited
US4271344A Cited
US4478349A Cited
US4663506A Cited
US4853509A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-08-27 1994-02-26 1994-08-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-08-27 1998-02-26 1998-08-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-08-27 2002-02-26 2002-08-28 $7700.00 Window Closed / Lapsed

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