Exhaust air valve for magnetic disk drives

Details Exhaust air valve for magnetic disk drives Exhaust air valve for magnetic disk drives

1981-03-23

1983-06-21

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360133, G11B 2302

Patent

active

043896871

ABSTRACT:
A magnetic disk drive has an improved air exhaust valve positioned over the outlet for pressurized air from the enclosure for the head disk assembly. The valve includes an elliptical housing having one closed face with the other open face being positioned over the air outlet. Ports are positioned along the minor diameter of the elliptical housing. An elastic band, which otherwise seals the ports, is distended by air pressure.

REFERENCES:
patent: 4054931 (1977-10-01), Bolton et al.
patent: 4282554 (1981-08-01), Ho et al.
patent: 4329722 (1982-05-01), West
IBM Tech. Disc. Bull., S. E. Wheeler, Atmospheric Pressure Compensator for Disk Files, vol. 20, No. 5, Oct. 1977, pp. 1891-1892.

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