Abstract: A roller contact switch, designed for use in a housing having opposed ends of an interrupted electrical circuit, includes an axially extending, electrically non-conductive member. The non-conductive member includes an axially extending portion, which is substantially rigid against any transverse movement, partially received in the housing for sliding axial movement relative thereto, and an axially extending portion which is substantially resilient for a transverse movement of said flexible portion relative to said rigid portion and has a transversely biased free end defining a roller seat. The non-conductive member is biased for sliding axial movement towards one of the on and off positions.

Abstract: A multi-switch membrane-switch assembly includes a longitudinally extending, resiliently flexible, non-conductive membrane having a convexly bowed cross section defining on an undersurface thereof a plurality of interrupted circuits defining longitudinally aligned pairs of laterally spaced, conductive contacts. A rigid substrate defines on an oversurface thereof a plurality of longitudinally aligned, conductive shorting elements. A laterally spaced pair of longitudinally extending, non-conductive positioning ribs are disposed on the oversurface of the rigid substrate. Each positioning rib defines an undercut for receiving and maintaining a longitudinally extending edge of the membrane, the positioning ribs cooperating to maintain the membrane convexly bowed.