Acoustic sensor assembly for a microwave oven

Details Acoustic sensor assembly for a microwave oven Acoustic sensor assembly for a microwave oven

1989-08-17

1990-06-26

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1055E, 73632, 340384R, H05B 680

Patent

active

049374133

ABSTRACT:
An acoustic sensor assembly for a microwave oven of the type having an oven cavity defined by walls. The acoustic sensor assembly comprises an acoustic sensor for converting sound into an electrical signal representative thereof, and aperture in the wall of the microwave oven cavity of sufficiently small to prevent microwaves from passing therethrough. The assembly further includes a hollow conduit, for example a plastic tube, having first and second ends and secured to the aperture at the first end and to the sensor at the second end for acoustically coupling the sensor to the aperture such that sounds in the cavity are passed through the aperture to the sensor.

REFERENCES:
patent: 3467804 (1969-09-01), Smith
patent: 3931757 (1976-01-01), Goode
patent: 4381439 (1983-04-01), Miyazawa et al.
patent: 4520250 (1985-05-01), Ishihara et al.
patent: 4602147 (1986-07-01), Gell
patent: 4672180 (1987-06-01), Kusunoki et al.

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