Butt-lap-step core joint

Details Butt-lap-step core joint Butt-lap-step core joint

1987-10-09

1988-08-02

Kozma, Thomas J.

Inductor devices

Wound core

336217, H01F 2726

Patent

active

047616300

ABSTRACT:
An improved transformer core joint for use in connection with amorphous metal transformers which includes a plurality of spirally wound laminations that are divided into a plurality of groups of laminations. The laminations within a group of laminations essentially provide a butt joint within the group while adjacent groups of laminations form a lap joint with each other. The groups of laminations are divided into sets of groups and a step either in the direction of the spiral or against the direction of the spiral occurs between each of the sets of groups. The joint of the invention provides a compact, easily disassembled and reassembled core joint for accommodating the manufacture of amorphous metal transformer cores.

REFERENCES:
patent: 2931993 (1960-04-01), Dornbush
patent: 3025483 (1962-03-01), Treanor
patent: 3189860 (1965-06-01), Duenke

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