Electricity: circuit makers and breakers – Multiple circuit control – Multiple switch
Patent
1987-11-16
1989-02-07
Pellinen, A. D.
Electricity: circuit makers and breakers
Multiple circuit control
Multiple switch
200600, 341 37, H01H 1314
Patent
active
048033154
ABSTRACT:
A printed circuit board comprising a dielectric film substrate and a plurality of circuit patterns for a capacitor switch formed on said dielectric film substrate at a certain space from each other. Each of the circuit patterns comprises a switch electrode pair formed on one surface of the dielectric film substrate, a first fixed electrode connected to one of the switch electrode pair, a first lead pattern connected to the other of the switch electrode pair, a second fixed electrode formed on the other surface of the dielectric film substrate in such a manner as to be opposed to the first fixed electrode through the dielectric film substrate, said first and second fixed electrodes forming a fixed electrode pair, and a second lead pattern connected to the second fixed electrode. A plurality of the fixed electrode pairs are arranged at an enlarged space larger than the certain space defined between the circuit patterns, and the density of the first and second lead patterns disposed in the enlarged space is reduced.
REFERENCES:
patent: 3921167 (1975-11-01), Fox
patent: 3951250 (1976-04-01), Pointon et al.
patent: 4659879 (1987-04-01), Hasegawa
Hirano Sadashi
Kako Mitsumasa
Brother Kogyo Kabushiki Kaisha
Ginsburg Morris
Pellinen A. D.
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