Key top

Details Key top Key top

2006-09-05

2006-09-05

Lee, Richard K. (Department: 2832)

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

C200S345000, C200S302100

Reexamination Certificate

active

07102087

ABSTRACT:
A key top comprising a key stem provided at a lower portion of the key top to be inserted into a rubber cup unit; and a first spring provided at a lower end of the key stem, and comprising a plate spring, wherein the key top is pushed down by finger pressure to turn on a contact point, thus executing key-in operation.

REFERENCES:
patent: 5396038 (1995-03-01), Yamada
patent: 5726400 (1998-03-01), Masuda

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