Printed circuit switch assembly with conductors of equal length

Claim 1

An electrical switch device which comprises two printed circuit type support members with circuit paths on each member providing separate sets of conductive areas registered to receive conductive pins for connecting together selected condUctive areas of each member, a terminal assembly with a plurality of electrical connections to one set of conductive areas, a plurality of conductors respectively extending between further sets of conductive areas to provide interconnecting conductive paths, a plurality of similar switch elements with switching patterns having contact members at a plurality of switching positions corresponding to registered sets of conductive areas registered with said conductive areas, and means including conductive pins connecting together conductive areas on each member with a switching position of one of said switch elements for associating with said sets of conductive areas at spaced locations thereon each of said switch elements, said pins connecting corresponding contact areas to each of said switch elements which are thereby associated with the corresponding ones of said conductors to form a path to said terminal assembly for each switch position, the length of each said path between its associated terminal of said terminal assembly and any one of the corresponding contact members of each switch element being substantially equal.