A linear actuator for a magnetic disc drive has shortened magnetic flux lines totally confined within the actuator housing whereby the actuator can be placed in closer proximity to a disc and thus reduce the size of the disc drive package. The actuator includes a generally cylindrical housing with magnets...http://www.google.fr/patents/US4305105?utm_source=gb-gplus-shareBrevet US4305105 - Linear actuator for magnetic disc drive and the like
Linear actuator for magnetic disc drive and the like
