Switch assembly for microwave oven turntable

Details Switch assembly for microwave oven turntable Switch assembly for microwave oven turntable

1985-10-09

1986-12-16

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1055E, 108 20, 108142, H05B 678

Patent

active

046298460

ABSTRACT:
A switch assembly for microwave oven turntable is disclosed. The turntable comprises a base (4) and a platform (6) rotatably mounted thereupon. The platform (6) is adapted having a downward pripheral rim flange (36), along which an annular gear ring (38) is provided. A flange (20) extends outward from the base beyond and below the rim flange (20). A switch mechanism includes a rocker body (48) pivotally mounted to the flange (20) and adapted to pivot toward and away from the flange (36). A locking finger (60) extends under the rim flange (36) and upward into a parallel and adjacent relationship with the gear ring (38). The locking finger (60) is of triangular saw-toothed cross section defining an apex ridge (62) oriented toward the gear ring. The gear teeth of the gear ring (38) likewise have a saw-tooth configuration. Rocking actuation of the switch body causes the locking finger (60) to pivot toward and away from meshing engagement with the gear ring (38).

REFERENCES:
patent: 4216727 (1980-08-01), Cunningham
patent: 4239009 (1980-12-01), Cunningham
patent: 4254319 (1981-03-01), Beh et al.
patent: 4258630 (1981-03-01), Jorgensen et al.
patent: 4308445 (1981-12-01), Offutt
patent: 4330696 (1982-05-01), Pomeroy et al.
patent: 4330697 (1982-05-01), Danley et al.
patent: 4434343 (1984-02-01), Bowen et al.
patent: 4456805 (1984-06-01), Jorgensen et al.
patent: 4504715 (1985-03-01), Jorgensen et al.
patent: 4523070 (1985-06-01), Jorgensen et al.

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