Electrical coil assembly

Details Electrical coil assembly Electrical coil assembly

1979-06-28

1980-09-09

Kozma, Thomas J.

Inductor devices

Coil wrapper on binder

H01F 2730

Patent

active

042220238

ABSTRACT:
An electrical coil assembly comprises a rectangular annular coil and a dustproof cover therefor. The cover is formed of a folded blank of electrically insulating sheet material which has a rectangular annular portion with a rectangular aperture. A first pair of opposed flaps and a second pair of opposed flaps are integrally joined to the external periphery of the portion. Each flap has a first tongue portion which is passed through the aperture and a second tongue portion which overlies a respective side of the aperture in the coil. The width of each tongue portion is greater than the length of the respective side of the aperture in the coil. The width of each tongue portion is not greater than the length of the respective side of the apertures. This blank is easy to assemble into a cover and there is a reduced risk of tearing the flaps.

REFERENCES:
patent: 1797768 (1931-03-01), Goad
patent: 2749525 (1956-06-01), Henderson
patent: 4160967 (1979-07-01), Beech

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