Electricity: conductors and insulators – Conduits – cables or conductors – Single duct conduits
Patent
1986-12-09
1988-09-20
Kucia, R. R.
Electricity: conductors and insulators
Conduits, cables or conductors
Single duct conduits
361403, 361406, 361409, H05K 118
Patent
active
047727624
ABSTRACT:
A printed board capable of permitting the passage of at least two wiring patterns between two adjacent mounting lands on the surface of the printed board even if a clearance between the adjacent mounting lands is limited. Mounted on the printed board is an electrical component having a plurality of leads extending in a parallel relation with each other with limited clearances formed between adjacent leads. The printed board has a plurality of mounting lands to which the respective leads of the electrical component are secured as by soldering, there being a limited clearance defined between adjacent ones of the lands such that only one wiring pattern printed on the printed board can run through the clearance in the direction parallel to that in which the leads extend. The adjacent two lands have two facing parallel sides which are disposed in parallel with each other at an angle relative to the direction in which the leads extend, so that at least two wiring patterns, printed on the surface of the printed board, can run through the clearance between the facing sides of the adjacent lands in a parallel relation therewith.
REFERENCES:
patent: 3833838 (1974-09-01), Christiansen
patent: 4298770 (1981-11-01), Nishihara
patent: 4527041 (1985-07-01), Kai
patent: 4548452 (1985-10-01), Gillett
patent: 4551789 (1985-11-01), Schettler et al.
patent: 4562513 (1985-12-01), Arnold et al.
Kucia R. R.
Mitsubishi Denki & Kabushiki Kaisha
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