Method and apparatus for preventing contamination of a rotating

Details Method and apparatus for preventing contamination of a rotating Method and apparatus for preventing contamination of a rotating

1979-04-23

1981-02-03

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

G11B 1702

Patent

active

042492211

ABSTRACT:
A method and apparatus are provided for preventing contamination of a rotating magnetic disc by particles outgassed from or through the bearings upon which the disc is mounted for rotation. This is accomplished by maintaining a differential pressure aross the bearing nearest the magnetic disc compartment with the higher pressure inside the compartment so that any particles outgassed from the bearing or bearing chamber are constrained to migrate toward a region of lower pressure within the bearing chamber and therefore away from the magnetic disc compartment.

REFERENCES:
patent: 4054931 (1977-10-01), Bolton et al.
patent: 4130845 (1978-12-01), Kulma

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