Automatic power supply cut-off apparatus for a microwave oven

Details Automatic power supply cut-off apparatus for a microwave oven Automatic power supply cut-off apparatus for a microwave oven

1997-07-01

1999-01-05

Leung, Philip H.

Electric heating

Microwave heating

With control system

219702, 219715, 219756, H05B 668

Patent

active

058566570

ABSTRACT:
A microwave oven includes a power cut-off safety switch which automatically cuts-off the supply of electric power to the oven if a housing panel is removed while the electric power supply cord is still plugged in. The switch is engaged by an extension of the housing panel which extends through a guide hole formed by another housing panel. The guide hole can have a non-planar shape to resist efforts to insert objects through the guide hole.

REFERENCES:
patent: 3691329 (1972-09-01), Ball
patent: 4277659 (1981-07-01), DeRemer
patent: 4321445 (1982-03-01), Kristof et al.
patent: 5235150 (1993-08-01), Buske et al.

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