Electric heating – Microwave heating – With control system
Patent
1994-12-30
1995-10-03
Leung, Philip H.
Electric heating
Microwave heating
With control system
219719, 219715, 200 38FA, H05B 668
Patent
active
054554039
ABSTRACT:
Disclosed is a microwave power controlling device having a reduced production cost and an improved assembling work efficiency by using a simple structure and the reduced number of components. A supporting stepped portion is formed on an inner surface portion of a control panel having a rotating through hole formed at a central portion thereof into which a knob axis for controlling the microwave power is inserted. An elastic piece and a pair of stoppers are formed on an upper surface of the supporting stepped portion. On an opposite surface of the supporting stepped portion, a microwave power controlling gear is mounted. The microwave power controlling gear has an engaging jaw for defining a rotating range thereof and a ring-shaped guide portion having plural notched grooves engaged with the elastic piece. The microwave power controlling gear is meshed with a coupling gear meshed with a microwave power controlling circuit gear of a timer body. The engaging jaw and stoppers define a rotation range of the microwave power controlling gear. Thus, the microwave power controlling device is simple to improve the production thereof and the assembling work efficiency.
REFERENCES:
patent: 4079636 (1978-03-01), Altenschute et al.
patent: 4697057 (1987-09-01), Fowler
patent: 4835349 (1989-05-01), Weber
patent: 5097105 (1992-03-01), Boin et al.
patent: 5134262 (1992-07-01), Lee
Cho Jaewon
Hong Wonpyo
Jun Wookeum
Kang Heungdae
Kim Byeong-jun
Daewoo Electronics Co. Ltd.
Leung Philip H.
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