Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1979-05-04
1981-12-29
Little, Willis
Electricity: circuit makers and breakers
Liquid contact
Time delay
200 5B, 200 5E, 200292, H01H 314
Patent
active
043084397
ABSTRACT:
A switching device comprises a flexible film of insulative material on which is printed a pictorial diagram or the like illustrating a plurality of controlled devices. A plurality of first conductive elements is arranged on a plane in contact with the illustration film and a plurality of second conductive elements is arranged on a second plane spaced from the first plane. In response to a pressure manually applied to the illustration film at a point corresponding to a desired controlled device, the first and second elements of the corresponding pair are brought into electrical contact to complete a circuit through a pair of terminals. Preferably, between each pair of corresponding first and second conductive elements is disposed an elastic element having resistance which varies from a non-conductive value to a conductive value in response to a pressure applied thereto.
REFERENCES:
patent: 3654407 (1972-04-01), Kepner et al.
patent: 3830991 (1974-08-01), Durocher
patent: 3859485 (1975-01-01), Blinklide
patent: 4128744 (1978-12-01), Seeger
Little Willis
Nissan Motor Company Limited
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