Illuminated keyboard apparatus

Details Illuminated keyboard apparatus Illuminated keyboard apparatus

1979-12-26

1981-09-08

Little, Willis

Electricity: circuit makers and breakers

Electric switch details

Indicators

200159B, 200317, H01H 918

Patent

active

042886724

ABSTRACT:
A keyboard system is disclosed which is particularly useful in vehicle control panels in which illumination of key indicia is desired to facilitate identification and actuation of selected keys. The system includes a housing for mounting key switches in a selected array. Disposed in the housing is a frame having key receiving apertures extending through a top wall of the frame and mounting a circuit board thereunder. The circuit board includes a normally open electrical contact set aligned with each key receiving aperture. The frame is composed of light transmitting material and is arranged to transmit light from a light source mounted below the circuit board into and through the key identification indicia formed in a label disposed on top of the frame. In one embodiment the indicia is in alignment with the pushbutton members through which light is directed while in another embodiment the indicia is located adjacent the pushbutton members.

REFERENCES:
patent: 3982081 (1976-09-01), Demler, Jr.
patent: 4056700 (1977-11-01), Stanner
patent: 4060703 (1977-11-01), Everett, Jr.
patent: 4163125 (1979-07-01), Boulanger
patent: 4163138 (1979-07-01), Harden
patent: 4163883 (1979-08-01), Boulanger

Affiliated with

Also associated with

Rating

Illuminated keyboard apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Illuminated keyboard apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Illuminated keyboard apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1194019