Magnetic actuator

Details Magnetic actuator Magnetic actuator

1989-08-30

1991-06-18

Burr, Edgar S.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, B41J 160

Patent

active

050245422

ABSTRACT:
A magnetic material and an actuator having magnetic circuit elements incorporating the magnetic material formed of equal amounts of iron and cobalt and between about 2.4 to 2.8% by weight vanadium. The actuator is well suited for inclusion in an impact printer for driving the impact members of the impact printer in response to printing signals. The composition of the magnetic material of the actuator provides high energy efficiency under greatly fluctuating direct current conditions by reducing eddy currents.

REFERENCES:
patent: 4247601 (1981-01-01), Wiegand
patent: 4626115 (1986-12-01), Norigae
patent: 4820065 (1989-04-01), Koyama et al.
Josso, M. M., "Les Alliages Magnetiques Doux Au Service Des Animants", La Metallurgie, vol. 104, No. 11, pp. 437-446, 448.
E. Josso, "Iron-Cobalt-Vandium Alloys", IEE Transactions on Magnetics, vol. MAG-10, No. 2, Jun. 1974, pp. 161-165.
Inui et al., "Production of Permendur in Coiled-Strip".

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