Drive arrangement for microwave oven mode stirrer

Details Drive arrangement for microwave oven mode stirrer Drive arrangement for microwave oven mode stirrer

1979-12-26

1981-10-20

Grimley, Arthur T.

Electric heating

Metal heating

Of cylinders

219 1055R, H05B 674

Patent

active

042962978

ABSTRACT:
A mode stirrer drive assembly in which the mode stirrer blades are rotated by the force of air against a drive fan. The blades of the drive fan are curved to form convex surfaces which are arranged to face into the flow of air across the drive fan. During rotation an upward force is thereby exerted on the assembly which lifts the assembly off of a thrust bearing and thereby reduces frictional losses and noise and improves performance and efficiency.

REFERENCES:
patent: 2813185 (1957-11-01), Smith
patent: 3471671 (1969-10-01), Puschner
patent: 3783219 (1974-01-01), Tateda
patent: 3965325 (1976-06-01), Hirai
patent: 3991295 (1976-11-01), Akiyoshi
patent: 4019010 (1977-04-01), Tanaka et al.
patent: 4144436 (1979-03-01), Hauck
patent: 4144437 (1979-03-01), Ehlers

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