Dynamic magnetic information storage or retrieval – Head – Coil
Patent
1994-02-28
1994-10-25
Wolff, John H.
Dynamic magnetic information storage or retrieval
Head
Coil
G11B 520
Patent
active
053594827
ABSTRACT:
A magnetic head for a digital signal comprises a double winding system in which each winding has one-half wound around a first branch of a U-shaped core and has its other half wound around a second branch so that when an appropriate electrical current is carried by the winding, a magnetic field is created such that the components thereof that are not channelled by the core cancel out giving rise to a zero resultant, while those channelled by the core add together.
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patent: 3480736 (1989-11-01), Johnson et al.
patent: 4533967 (1985-08-01), Conly et al.
patent: 4782415 (1988-11-01), Vinal
patent: 4816950 (1989-03-01), Heinz et al.
Patent Abstract of Japan, vol. 14, No. 191 (P-1038)(4134) Apr. 1990, #2-35610(A); Tanaka.
Patent Abstract of Japan, vol. 11, No. 342 Jun. 1987, #62-124617(A); Hayashi et al.
English Abstract of Japanese Application No. 2035610--Toshiba Corp. vol. 14, No. 191 (P-1038) (4134) Apr. 18, 1990--Title: Magnetic Head.
English Abstract of Japanese Application No. 62124617--Hitachi Ltd. vol. 11, No. 342 (P-635) (2789) Nov. 10, 1987--Title: Multigap Magnetic Head.
Asman Sanford J.
Schlumberger Industries
Wolff John H.
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