Sheet switch

Details Sheet switch Sheet switch

1989-08-31

1991-02-19

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

200512, 338279, 338280, 341 25, H01H 158, H01H 1370, H01C 300, G06F 300

Patent

active

049946340

ABSTRACT:
A sheet switch comprises a pair of flexible insulative films, one of which is provided with a plurality of electrodes, resistances connected to the electrodes, respectively, and line patterns for externally connecting the electrodes via the resistances. The other insulative film is also provided with a plurality of second electrodes at positions corresponding to the first electrodes, respectively, and a space is defined between each of the facing electrodes. The line pattern is a laminated structure consisting of an underlayer formed of a low resistance paste and an upper layer formed of a high resistance paste coated over the underlayer. The underlayer formed of a low resistance paste is partially disconnected to define a gap, so that the resistance is formed integrally with the upper layer formed of a high resistance paste at a position corresponding to the gap.

REFERENCES:
patent: 4146759 (1979-03-01), Watanabe et al.
patent: 4440990 (1984-04-01), Nozaki
patent: 4463338 (1984-07-01), Utner
patent: 4709228 (1987-11-01), Hucking et al.
patent: 4804940 (1989-02-01), Takigawa et al.

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