Membrane keyboard apparatus capable of providing sequential...

Details Membrane keyboard apparatus capable of providing sequential... Membrane keyboard apparatus capable of providing sequential...

H - Electricity

01

H

340/187

H01H 13/52 (2006.01) G04C 3/00 (2006.01) H01H 13/702 (2006.01)

Patent

CA 1065761

MEMBRANE SWITCH APPARATUS ABSTRACT OF THE DISCLOSURE 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, non- conductive 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 flex- ible 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.

247669

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