Using eddy-currents for releasing actuator suspension...

Details Using eddy-currents for releasing actuator suspension... Using eddy-currents for releasing actuator suspension...

2007-04-10

2007-04-10

Evans, Jefferson (Department: 2627)

Dynamic magnetic information storage or retrieval

Head mounting

For moving head into/out of transducing position

C360S256300

Reexamination Certificate

active

10810278

ABSTRACT:
A mechanism is provided for restraining and releasing an actuator suspension assembly in a magnetic disk device which is in a retracted position. In a magnetic disk device, according to one embodiment, a magnetic disk4ais formed of an electrically conductive material and there is disposed a latch member50which holds an eddy-current magnet at one end thereof and is provided with a latching portion at an opposite end thereof. An actuator suspension assembly8lies in a retracted position and is restrained at a frame engaging portion23thereof by means of the latch member. The eddy current magnet is disposed in such a manner that a magnetic pole thereof is opposed to a surface of the magnetic disk at a position close to the disk surface. When the magnetic disk is rotated, an eddy-current is generated and a force is exerted on the eddy-current magnet, so that the latch member turns and releases the actuator suspension assembly.

REFERENCES:
patent: 5145038 (1992-09-01), Kuwahara
patent: 6462913 (2002-10-01), Chew
patent: 08-339645 (1996-12-01), None
patent: 11-110933 (1999-04-01), None

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