Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1996-06-27
1998-06-09
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
G11B 3314
Patent
active
057644357
ABSTRACT:
A breather filter unit for a magnetic disk drive including a base and a cover fixed to the base, the cover having a vent. The breather filter unit includes a casing fixed to an inner surface of the cover, the casing having a vent inlet communicating with the vent of the cover and a vent outlet communicating with an inside of the magnetic disk drive, and a first filter contained in the casing at a position adjacent to the vent inlet, the first filter being formed from a plurality of fibers extending in a direction substantially parallel to that of an air flow from the vent inlet to the vent outlet. The breather filter unit further includes a second filter bonded to the casing so as to cover the vent outlet, and an activated carbon layer contained in the casing at a position between the first filter and the second filter.
REFERENCES:
patent: 4751594 (1988-06-01), Blanks
patent: 4863499 (1989-09-01), Osendorf
patent: 5012360 (1991-04-01), Yamauchi et al.
patent: 5075807 (1991-12-01), Inoue et al.
patent: 5367417 (1994-11-01), Brown et al.
patent: 5417743 (1995-05-01), Dauber
Ishida Katsuaki
Komura Yukihiro
Nagasawa Yoshiaki
Sugimoto Masaharu
Sukagawa Tomoo
Fujitsu Limited
Wolff John H.
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