Electromagnet for degaussing record-reproduce heads

Details Electromagnet for degaussing record-reproduce heads Electromagnet for degaussing record-reproduce heads

1978-04-17

1980-01-08

Lucas, Jay P.

Dynamic magnetic information storage or retrieval

Head

Head accessory

360122, 361267, G11B 546, G11B 2724

Patent

active

041830709

ABSTRACT:
An electromagnet for degaussing a magnetic head and which includes a yoke having a gap and one or more coils wound thereon is characterized by the middle portion of the yoke face, at and adjacent to said gap, being wider than the magnetic tape that passes by the magnetic head, and by the side portions of said yoke face, away from said gap, being narrower than the tape.

REFERENCES:
patent: 3369081 (1968-02-01), Atsumi
patent: 3439922 (1969-04-01), Howard
patent: 3655924 (1972-04-01), Puskas
patent: 3700826 (1972-10-01), O'Neal
patent: 3810230 (1974-05-01), Orlowski
patent: 4100584 (1978-07-01), Behr et al.
patent: 4135219 (1979-01-01), Yoshizawa

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