US 4,229,633 AGranted

Programmable switch

OwnerEdward L. Gillilaninventor

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Abstract

A programmable switch in the form of an output display similar to those generally known in the art as a seven-segment display used for digital display of output. This programmable switch provides a plurality of segments that can operate as a switch to generate a numerical or alphabetical program for entry into an electronic program circuit. The plurality of segments are recessed into the face of the switch body so that a stylus instrument can be inserted into the recess of individual segments to generate in each switch body the desired number, letter or other symbol. A plurality of switch bodies may be positioned adjacent one another to increase the number of digits or indicia to be entered into an electronic program circuit. For all segments there is one conductive layer which acts as the "common" side of the electric circuit. Beneath the conductive layer is a segmented printed circuit which is contacted by the "common" side conductive layer when a stylus instrument is inserted into a recess of a switch segment. One common can serve all the switch segments. One version has an open-cell foam layer between the "common" conductive layer and the printed circuit board for electrical isolation between the common and printed circuit prior to actuation of a switch by insertion of the stylus into the segment.

Claims4

Dependent claims

An indelibly inscribable programmable switch assembly for use with an electrical circuit, comprising:

at least one switch body, each said switch body;
and
at least one indelibly inscribable switch means operable by indelibly inscribing on said inscribable switch, said inscribable switch connected to said switch body;
said switch body including a carrier means connected to said body adjacent said inscribable switch;
said inscribable switch including an indelibly inscribable means, a first conductive means and a second conductive means, said first conductive means positioned between said inscribable means and said second conductive means;
said first conductive means and said second conductive means for providing switching elements;
said second conductive means connected to said carrier means, said first conductive means and said inscribable means connected to said switch body, said second conductive means positioned for electrical switching relative to said first conductive means, said inscribable means for indelibly inscribing indicia thereon by deforming said inscribable means and moving said first conductive means to provide a switched marking when switching said inscribable switch means,
said inscribable means positioned to be accessible through said switch body for movement of said first conductive means relative to said second conductive means for switching;
said first conductive means and said second conductive means form an electrical circuit when said first conductive means is in electrical contact with said second conductive means;
said second conductive means including at least one electrical contact surface;
each said contact surface separately connectable to separate terminal means;
said first conductive means separately connectable to a separate terminal means;
and
insulation means located between said first conductive means and said second conductive means when in an open position.

11 more elements

Dependencies are inferred from the claim text.