Metal/ferrite laminate magnet

Details Metal/ferrite laminate magnet Metal/ferrite laminate magnet

1997-05-09

1999-11-16

Donovan, Lincoln

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

313433, 313431, H01J 2970, H01J 2974

Patent

active

059863951

ABSTRACT:
A metal/ferrite laminate magnet has perforations forming apertures in the magnet. The magnet is formed of outside metal plates surrounding a sandwich of two layers of ferrite material. The outside metal plates allow the perforations to be made in the magnet before sintering of the magnet and maintain the alignment of the holes during sintering. The metal plates also provide the magnet with mechanical robustness and rigidity and prevent cracking occurring between adjacent apertures.

REFERENCES:
patent: 4023057 (1977-05-01), Meckling
patent: 4138236 (1979-02-01), Harberey
patent: 4471262 (1984-09-01), Tamura et al.
patent: 4540500 (1985-09-01), Torii et al.
patent: 4835438 (1989-05-01), Baptist et al.
patent: 5763987 (1998-07-01), Morikawa et al.
Patent Abstracts of Japan, Publication No. JP60093742, vol.: 9, No.: 240, Patentee: Matsushita Denki Sangyo KK, entitled "Display Device" (No Date).

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