Electricity: circuit makers and breakers – Multiple circuit control – Sequential operations
Reexamination Certificate
2005-08-30
2005-08-30
Friedhofer, Michael A. (Department: 2832)
Electricity: circuit makers and breakers
Multiple circuit control
Sequential operations
C200S406000, C200S516000
Reexamination Certificate
active
06936777
ABSTRACT:
A two-step switch, which may be minimized in radial direction and is suitable for PCB or FPC circuit board, has a first contact spring, having outer peripheral contacts in regular contact with first fixed contacts and having an inner contact inside the outer peripheral contacts and reversed by depressing, and a second contact spring, stacked on the first contact spring via an insulation sheet, having an outer peripheral contact in regular contact with a second fixed contact and having an inner contact inside of the outer peripheral contact and reversed by depressing. Through a first depressing, the inner contact of the first contact spring is reversed and in contact with the inner contact of the second contact spring, whereby a first electric circuit is actuated. Also through a second depressing, the inner contact of the second contact spring is reversed and in contact with the third fixed contact, whereby a second electric circuit is actuated.
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Friedhofer Michael A.
Fuji Electronics Industries Co., Ltd.
McGinn & Gibb PLLC
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