Patent EP0474306A1 successfully refreshed from Google Patents.
EP0474306A1
Expired / Lapsed
EP
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Oven with a rotating bottom plate
Assignee: Whirlpool Europe BV
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Filing: 1991-09-03
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Granted: —
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Expires: 2011-09-03
Abstract
Abstract The invention relates to an oven, preferably a microwave oven, having a rotatable bottom plate (5) in the bottom (18) of a oven cavity (6). According to the invention the center of rotation (B-B) of the bottom plate (5) is moveable essentially in the rotation plane of the bottom plate. Hereby a more even heating of a load (9) applied on the bottom plate is obtained. Furthermore it is prevented that a magnetron (19) included in the microwave oven is stressed by the applied load (9).
Inventors
- 👤 Hakan Carlsson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 03:48
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/6408; H05B6/6411
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
90 words
An oven, preferably a microwave oven, comprising an oven cavity, a rotatable bottom plate provided in the oven cavity for rotation of a load applied on the bottom plate, a drive motor for rotation of the bottom plate, and a transmission coupling between the drive motor shaft and the rotatable plate, characterized in that the rotation center of the bottom plate is arranged to be moved relative to the oven cavity essentially in the rotation plane of the bottom plate at the same time as the bottom plate is rotated.
Claim 2
Dependent Claim
26 words
An oven as claimed in claim 1, characterized in that the rotation center of the bottom plate is arranged to be moved along a circular path.
Claim 3
Dependent Claim
82 words
An oven as claimed in any of preceding claims, the bottom plate bearing on a transmission coupling provided with support wheels for transmission of a rotation movement from the drive motor shaft to a rotation movement of the bottom plate via one or several support wheels, characterized in that the rotation center of the bottom plate is displaced relative to the rotation center of the transmission coupling to obtain a simultaneous displacement and rotation of the bottom plate in its rotation plane.
Claim 4
Dependent Claim
86 words
An oven as claimed in claim 3, the transmission coupling comprising a transmission element having a central section and at least three from the same emanating branches provided with at least one support wheel in the end of each branch for cooperation with the cavity bottom of the oven and the bottom plate, and rotation movement transmission between the transmission element and the bottom plate, characterized in guide means acting, between the transmission element and the bottom plate to guide the movement of the bottom plate.
Claim 5
Dependent Claim
22 words
An oven as claimed in claim 4, characterized in that the guide means act essentially in the center of the bottom plate.
Claim 6
Dependent Claim
45 words
An oven as claimed in claim 5, characterized in that the guide means consist of a guide pin combined with a recess, the guide pin being provided on the transmission element and the recess in the rotation center of the bottom plate or vice versa.
Claim 7
Dependent Claim
22 words
An oven as claimed in claim 5, characterized in that the guide means act in the peripheral section of the bottom plate.
Claim 8
Dependent Claim
43 words
An oven as claimed in claim 7, characterized in that the guide means consist of an essentially circular ring-shaped raising provided on the underside of the bottom plate and which cooperate with at least one of the support wheels of the transmission element.
Claim 9
Dependent Claim
56 words
An oven as claimed in any of the claims 4-8, characterized in that a number of the branches of the transmission element are provided with two support wheels, one of the support wheels being arranged to bear on the bottom plate, the other support wheel being arranged to bear on the bottom of the oven cavity.
Claim 10
Dependent Claim
42 words
An oven as claimed in any of the preceding claims, characterized in that the ratio of the rotation speed V b of the bottom plate and the rotation speed V m of the drive motor shaft has a value deviating from 2.00.
References Cited (Backward Citations)
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