Iron core assembly for magnetizing columnar permanent magnets fo

Details Iron core assembly for magnetizing columnar permanent magnets fo Iron core assembly for magnetizing columnar permanent magnets fo

1977-10-03

1979-10-02

Envall, Jr., R. N.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

For magnetizing or demagnetizing

118658, 361143, H01F 1300

Patent

active

041699980

ABSTRACT:
Disclosed is an iron core assembly for magnetizing columnar permanent magnet, particularly columnar ceramic permanent magnets adapted for use in magnetic-brush type electrostatic developing apparatus. The invention is to clarify the magnetic pattern most effective for the development, as well as a construction for presenting such a pattern, and is aiming to provide a magnetizing iron core assembly having an improved construction of magnetic poles and magnetizing coil windings.

REFERENCES:
patent: 3158797 (1964-11-01), Andrews
patent: 3402698 (1967-05-01), Kojima et al.
patent: 3455276 (1967-05-01), Anderson
patent: 3828730 (1972-05-01), Yamashita et al.
patent: 3952701 (1974-11-01), Yamashita et al.

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