Return path geometry to enhance uniformity of force on a linear

Details Return path geometry to enhance uniformity of force on a linear Return path geometry to enhance uniformity of force on a linear

Filed on

1997-05-30

Date issued

1999-05-18

Examiner

Tupper, Robert S.

Patent Class

Dynamic magnetic information storage or retrieval

SubClass

Record transport with head stationary during transducing

SubSubClass

Drum record

Other Related Categories

G11B5/55;21/08

Type

Patent

Status

active

Patent number

059056070

Description

ABSTRACT:
Narrow gaps near the end of travel of a linear actuator coil of a magnetic disk drive is disclosed. The gaps are formed between actuator magnets and inner return path members on opposing sides of an actuator carriage. The narrow gaps are formed by protrusions on the inner return path members that extend into the gaps. The narrow gaps enhance uniformity of force applied to the carriage by diminishing the end effects, which enables the entire length of the air gap to be used for actuator travel.

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