Electric heating – Microwave heating – Field modification
Reexamination Certificate
2005-04-26
2005-04-26
Leung, Philip H. (Department: 3742)
Electric heating
Microwave heating
Field modification
C219S697000, C219S709000, C219S710000, C219S748000, C219S750000
Reexamination Certificate
active
06884979
ABSTRACT:
A microwave oven and a method for heating a load which is placed therein. According to the invention a predetermined mode in the cavity of a microwave oven is fed by means of an associated feeding port which is arranged to feed essentially the intended mode only, the feeding of a mode other than the intended, predetermined mode being essentially prevented.
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patent: 4323745 (1982-04-01), Berggren
patent: 4476363 (1984-10-01), Berggren et al.
patent: 5008506 (1991-04-01), Asmussen et al.
patent: 5632921 (1997-05-01), Risman et al.
patent: 6104018 (2000-08-01), Varma et al.
patent: WO 99 48336 (1999-09-01), None
Carlsson Håkan
Ekinge Roland
Nordh Ulf
Törngren Per
Colligan John F.
Krefman Stephen
Leung Philip H.
Rice Robert O.
Whirlpool Corporation
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