Self-adapting flow restrictors

Details Self-adapting flow restrictors Self-adapting flow restrictors

1979-01-02

1980-10-21

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360102, 360135, 360 99, G11B 5016, G11B 1564

Patent

active

042297745

ABSTRACT:
A record storage apparatus consisting of a stack of co-rotating spaced apart flexible record storage disks are stabilized by circumferentially uniform radially outwardly flowing air under a quiescent operating condition. The record storage disks are normally in a parallel relationship. To form a transducing access opening, the disks are axially partially moved to create an enlarged interstice between two of the record storage disks for enabling a transducer to reach a recording surface on one of the two record storage disks. Disks adjacent to such access openings come closer together but should not touch. To avoid the touching and maintain stability, air flow between such more closely spaced disks is automatically adjusted as the disks approach each other.

REFERENCES:
patent: 3208056 (1965-09-01), Pearson et al.
patent: 4011590 (1977-03-01), Orlando
patent: 4019204 (1977-04-01), Griffiths et al.
patent: 4051541 (1977-09-01), McGinniss et al.
patent: 4167029 (1979-09-01), Ragle et al.
IBM/TDB, vol. 17, No. 1, Jun. '74, "Self-Ventilating Storage Disk Apparatus" by Griffiths et al.
IBM/TDB, vol. 16, No. 12, May, '74, "Record Disk Assies", by Griffiths et al.

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