Electricity: circuit makers and breakers – Multiple circuit control – Multiple switch
Reexamination Certificate
2006-03-28
2006-03-28
Lee, Kyung (Department: 2832)
Electricity: circuit makers and breakers
Multiple circuit control
Multiple switch
C200S520000, C200S341000, C200S01600R
Reexamination Certificate
active
07019225
ABSTRACT:
A pusher formed of a rubber material, a click plate, a membrane switch which serves as a second step switch, a reinforcing plate, a membrane sheet on which a plurality of first step switches are formed, a key operation base and a knob are sequentially assembled into a case. The knob includes a plurality of depressing pieces having on its internal surface a projection which moves into contact with each membrane switch and also includes a marginal portion which is supported by the top surface of the case. The knob is thin-walled except for the depressing piece, and the thin-walled portion comprises a thermoplastic elastomer or silicone rubber. The knob, the key operation base and the reinforcing plate are secured together. As the depressing piece is depressed, the thin-walled portion which is located therearound becomes flexed, whereby the membrane switch is depressed by the projection to turn the switch on. When the depressing piece is further depressed, the reinforcing plate moves and the click plate reverses, turning the switch on.
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Iwao Naoki
Matsumoto Tadanao
Gallagher & Lathrop
Japan Aviation Electronics Industry Limited
Lathrop, Esq David N.
Lee Kyung
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