Slot configuration for choke seal

Details Slot configuration for choke seal Slot configuration for choke seal

1980-11-05

1982-01-26

Grimley, Arthur T.

Electric heating

Metal heating

Of cylinders

174 35MS, H05B 676

Patent

active

043130445

ABSTRACT:
An electromagnetic wave energy seal arrangement for a microwave oven which incorporates juxtaposed conductive surfaces spaced apart by a gap which circumscribes the perimeter of an access opening to the oven cooking cavity. One of the conductive surfaces is located on the oven door, overlies a recessed channel in the door, and is provided with slots to inhibit longitudinal currents. The slots are configured to have a first average width near the slot entrance and a second larger average width adjacent the slot terminus to thereby better tailor the bandwidth of the slots for optimum operation to the specific microwave energy characteristics of the oven.

REFERENCES:
patent: 2772402 (1956-11-01), Tomiyasu
patent: 3651300 (1972-03-01), Haagensen
patent: 3767884 (1973-10-01), Osepchuk et al.
patent: 4053731 (1977-10-01), Foerstner
patent: 4254318 (1981-03-01), Ohkawa et al.

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