Slide switch with light guide

Details Slide switch with light guide Slide switch with light guide

1988-09-23

1989-09-19

Pellinen, A. D.

Electricity: circuit makers and breakers

Multiple circuit control

Operating means

200 6127, 200317, H01H 304

Patent

active

048683540

ABSTRACT:
A contact is attached to a carrier and the carrier-contact assembly encapsulated in a chamber in a light guide, the chamber having an open end closed by a circuit board having traces on it. A lever fitting into a lever housing in the carrier passes through a slot in the light guide permitting the carrier to be manually slid within the chamber parallel to the circuit board, thereby moving the contact over the traces. The carrier contacts the light guide wholly along narrow ribs which are greased with a viscous grease. An opaque cover, having a slot through which the lever extends, encloses the light guide. An opaque tape located between the cover and the light guide and having an opening through which the lever extends, slides with the lever to prevent light from escaping through the slot in the cover as the lever is moved. A rim on the lever housing prevents light from escaping around the opening in the tape.

REFERENCES:
patent: 3755661 (1973-08-01), Bouvrande
patent: 4288672 (1981-09-01), Puccini
patent: 4400685 (1983-08-01), Chestnut
patent: 4408104 (1983-10-01), Iwata et al.
patent: 4449024 (1984-05-01), Stracener

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