公开(公告)号：EP0116078A4

公开(公告)日：1985-02-28

申请号：EP83902666

申请日：1983-07-28

Applicant: PRESS ON INC

Inventor： DOUGHTY JOHN IRVING

IPC: G06F3/02 ,  H01H13/70 ,  H01H13/702 ,  H01H13/703 ,  H01H13/712 ,  H01H13/807 ,  H01H9/00

CPC classification number: H01H13/807 ,  H01H13/702 ,  H01H13/703 ,  H01H2001/0005 ,  H01H2201/018 ,  H01H2211/022 ,  H01H2219/03 ,  H01H2225/002 ,  H01H2227/002 ,  H01H2229/028 ,  H01H2229/038

Abstract: An improved membrane switch (10). The switch (10) includes a pair of transparent, laminar contacts (16, 18) sandwiching a spacer (30) formed therein so that the contacts (16, 18) can be engaged at the location of the window (36) by the application of pressure to one of the contacts (16, 18). Engagement of the contacts (16, 18) closes a circuit to effect a desired function. With this structure, the problem of back lighting method without distortion of the indicia being caused by silver conductive ink circuit of the prior art is eliminated.