Microwave oven with timer device

Details Microwave oven with timer device Microwave oven with timer device

1989-10-10

1990-12-04

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1055R, 368 9, H05B 668

Patent

active

049755552

ABSTRACT:
A microwave oven with a timer device driven by a ripple voltage related to the mains frequency. The ripple voltage appears at a circuit point in the microwave oven power supply only during the time when microwave energy is being fed into the oven cavity.

REFERENCES:
patent: 3872277 (1975-03-01), Niu
patent: 4129769 (1978-12-01), Takagi et al.
patent: 4130749 (1978-12-01), Tanaka et al.
patent: 4142082 (1979-02-01), Israel
patent: 4331855 (1982-05-01), Tanabe

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