Pneumatic cartridge seal for computer disc drive cartridge

Details Pneumatic cartridge seal for computer disc drive cartridge Pneumatic cartridge seal for computer disc drive cartridge

G - Physics

11

B

352/24.3

G11B 17/02 (2006.01) F16J 15/48 (2006.01) G11B 17/038 (2006.01) G11B 23/02 (2006.01) G11B 23/03 (2006.01)

Patent

CA 1205194

ABSTRACT A pressurized seal is disclosed which comprises the interface between a disk drive spindle housing and a disk cartridge housing whereby dirty, unfiltered air is prevented from entering the disk area of the cartridge when mounted on the disk drive. The seal is comprised of an annular stop having three channels. An inner channel has mounted therein a circular cross-sectioned, flexible tube running the length of the channel. An intermediate channel connects to a source of pressurized filtered air. An outer ring mounts a flap seal which is forced against the cartridge housing by the pressurized filtered air.

442849

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