Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Patent
1990-12-28
1992-10-13
Picard, Leo P.
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
361394, 361393, 361400, 361413, 248 27, 364708, H05K 500
Patent
active
051556642
ABSTRACT:
An operator interface panel assembly is used with a programmable logic controller. Through the use of a printed wired circuit board, a wide variety of input and output components that must be accessible to an operator can be assembled by the user at the location of the installation rather than at the point of manufacture. The assembly can be easily reconfigured without costly rewiring of the installation. The same switch or pilot light position can accommodate a variety of one and two pole switches without hardware modification.
REFERENCES:
patent: 3895268 (1975-07-01), May et al.
patent: 4658375 (1987-04-01), Onogi et al.
patent: 4908738 (1990-03-01), Kobari et al.
Holterman Randall R.
Maggelet John
Femal Michael J.
Graefe Richard J.
Picard Leo P.
Square D Company
Whang Young S.
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