Inductor devices – Core forms casing
Patent
1991-06-14
1992-10-06
Kozma, Thomas J.
Inductor devices
Core forms casing
336 92, 336136, H01F 1502, H01F 2726
Patent
active
051535475
ABSTRACT:
A bobbin provides a coil wound on the outer peripheral surface and allows a threaded core to be screwed on the inner peripheral surface. This bobbin is covered with a jar-like core and a metal case. The jar-like core and the metal case provide through holes for receiving a driver used to handle a threaded core. The edge of the through hole of the metal case is located radially inside or outside of the edge of the through hole of the jar-like case. It results in preventing the edge of the through hole of the jar-like core from being broken by a burr formed on the edge of the through hole of the metal case.
REFERENCES:
patent: 2905913 (1959-09-01), Leigh
patent: 3358255 (1967-12-01), Digilio
Kozma Thomas J.
Toko Kabushiki Kaisha
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