Key top

Details Key top Key top

1989-07-06

1992-06-09

Cusick, Ernest G.

Electricity: circuit makers and breakers

Electric switch details

Actuators

200310, 200313, H01H 312, H01H 900

Patent

active

051209209

ABSTRACT:
A key top includes an indicator member formed of a transparent or translucent synthetic resin and having a projection corresponding to a contour of an indicating portion, an outer member formed of an opaque synthetic resin and molded to cover an outer surface of the indicator member except a top surface of the projection, a light transmitting colored coating printed on the top surface of the projection, and a light shielding coating printed on a part of the light transmitting colored coating which corresponds to a closed portion of the indicating portion such as the center of the letter "O".

REFERENCES:
patent: 3482542 (1969-12-01), Mace
patent: 4163883 (1979-08-01), Boulanger
patent: 4778966 (1988-10-01), Obata et al.

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