Membrane switch apparatus having sequential bridging contact arr

Details Membrane switch apparatus having sequential bridging contact arr Membrane switch apparatus having sequential bridging contact arr

1975-06-12

1976-10-19

Scott, James R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

200159B, H01H 1352

Patent

active

039872599

ABSTRACT:
Membrane switch apparatus is disclosed, in its preferred form, as a keyboard including an insulator with an array of individual switching units located thereon. Each individual switching unit includes a plurality of first electrode members and a plurality of second electrode members. A flexible, nonconductive member is disposed in a spaced relation above and adjacent to the level of the top surfaces of the electrode members of the array of individual switching units. The flexible member includes conductive material located thereon in a patterned arrangement to allow sequential bridging first, of the plurality of the first electrode members and, second, of the plurality of second electrode members.

REFERENCES:
patent: 3584162 (1971-06-01), Krakinowski
patent: 3600528 (1971-08-01), Leposavic
patent: 3728509 (1973-04-01), Shimojo
patent: 3735068 (1973-05-01), Yanaga et al.
patent: 3742157 (1973-06-01), Leposavic
patent: 3743797 (1973-07-01), Hoffman
patent: 3760137 (1973-09-01), Shimojo et al.
patent: 3898421 (1975-08-01), Suzumura

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