Spindle filter in a data recording disk file

Details Spindle filter in a data recording disk file Spindle filter in a data recording disk file

1986-10-14

1988-10-11

Hecker, Stuart N.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 98, 310 90, 384476, 384624, 55503, 55510, 553851, G11B 5012, G11B 3314, B01D 4610

Patent

active

047775491

ABSTRACT:
A filtering means is provided in a data recording disk file for filtering air flowing from the region of the spindle bearings into the head/disk area of the disk file. The filtering means is mounted to the disk file frame adjacent the rotary shaft of the spindle and together with the shaft defines a narrow annular gap for the flow of a very small portion of the total air flow from the region surrounding the spindle bearings. The filtering means includes first and second ring members which have axially-directed openings and which together support filter material located between the ring members. The primary portion of the air flow from the spindle bearings passes through the axially-directed openings of the ring members and the filter material and is thus filtered before entering the head/disk area. The filtering means also serves as a make-up filter for those generally sealed disk files in which the rotating disks serve as a pumping means for recirculating air within the head/disk area and in which the region surrounding the drive motor is open to the atmosphere.

REFERENCES:
patent: 2057196 (1936-10-01), Koch
patent: 2691554 (1954-10-01), Bucher
patent: 2702093 (1955-02-01), Sherril
patent: 3004806 (1961-10-01), Schinnerer
patent: 4308041 (1981-12-01), Ellis et al.
R. A. Davis, et al., "Air Circulation System," IBM Technical Disclosure Bulletin, vol. 24, No. 11B, (Apr. 1982), p. 6198.
R. A. Davis et al., "Spindle Seal for Self-Pressurized Head/Disk Assembly," IBM Technical Disclosure Bulletin, vol. 26, No. 11, (Apr. 1984), p. 6001.
SEALOL, High Performance Mechanical Face Seals, (Bulletin 700B2) Brochure.
J. H. Willaman, "Air Sealing Device for Rotating Shafts or Hubs," IBM Technical Disclosure Bulletin, vol. 19, No. 1, (Jun. 1976), p. 249.
V. J. Trotter, Jr., "Plastic Rigid Seal to Trap Airborne Submicron Particles," IBM Technical Disclosure Bulletin, vol. 19, No. 4, (Sep. 1976), p. 1392.
R. C. Treseder, "Axial Gap Seal for Rotating Shaft," IBM Technical Disclosure Bulletin, vol. 22, No. 2, (Jul. 1979), pp. 776-777.

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