Plug-in module for touch control switching

Claim 1

An operator-touch switch assembly for power applied to electrical apparatus, such as an electrical lamp, appliance, and machinery, which apparatus includes a connection for power to said apparatus and a series connected power socket in said connection having a plurality of make-before-break jacks each comprising a pair of normally closed electrical contacts so that the power connection to said apparatus is uninterrupted when the socket is vacant; said switch assembly comprising a housing module; switching electronic circuitry of solid-state components disposed within said housing module; terminal means on said housing module having a first section comprising a pair of spaced pins for plugging-in to a first one of said jacks to engage respective ones of said contacts of said first jack to force them open while maintaining electrical connection therewith and being connected internally of said module across a switching element of said electronic circuitry, and having a second section comprising an electrical conductor for plugging-in to a second one of said jacks to bridge and maintain electrical connection between the normally closed contacts of said second jack; control means for said switching element; and a touch-sensor terminal to which said control means responds; whereby when said module is plugged into said socket said electronic circuitry controls the connection of power to said apparatus.