Electric heating – Microwave heating – Waveguide applicator
Reexamination Certificate
2005-05-03
2005-05-03
Leung, Philip H. (Department: 3742)
Electric heating
Microwave heating
Waveguide applicator
C219S748000, C219S697000, C219S750000
Reexamination Certificate
active
06888114
ABSTRACT:
In order to reduce reflected waves and improve heating matching, a microwave heating apparatus is equipped with at least one cone-shaped, bell-shaped, pyramid-shaped or similarly shaped waveguide, a reflector apparatus provided inside the waveguide, and a reflection diffusion apparatus provided inside the oven.
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patent: 4752663 (1988-06-01), Meisel
patent: 5417941 (1995-05-01), McNulty
patent: 5786579 (1998-07-01), Park
patent: 6246039 (2001-06-01), Omori et al.
patent: 0 014 121 (1980-08-01), None
Hedman & Costigan ,P.C.
Leung Philip H.
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