Dynamic magnetic information storage or retrieval – Head – Head accessory
Patent
1981-01-14
1983-03-01
Eddleman, Alfred H.
Dynamic magnetic information storage or retrieval
Head
Head accessory
360 86, 360 99, 360133, G11B 541, G11B 2302, G11B 2504
Patent
active
043756581
ABSTRACT:
An improved wet cleaning disk assembly for use in cleaning reading and writing transducers of a floppy disk drive. The cleaning disk assembly includes an envelope having apertures formed therethrough for receiving reading and writing transducers and a reinforced opening along one edge thereof for insertion of a cleaning disk thereinto. In use, a cleaning disk, presoaked with a liquid cleaning solution, is removed from a sealed package and inserted into the envelope to form the cleaning assembly which is then inserted into a floppy disk drive. A spindle within the drive passes through a central aperture therefor in the envelope and through a central aperture in the disk to thereby engage the disk and rotate it within the envelope. The envelope and cleaning disk also include sensing apertures adapted to permit optical sensing of disk rotation by the drive. The cleaning disk facilitates this sensing by means of an opaque, C-shaped region printed thereon within an annular region about the central aperture of the disk which includes the sensing aperture. The disk further includes an annular shaped reinforcement formed on a side surface of the disk in the region thereof which is engaged by the spindle of the floppy disk drive. This cleaning disk assembly may be used to clean a floppy disk drive having a single reading and writing transducer by securing a removable cover over one of the apertures formed therefor in the envelope prior to its insertion into such a drive.
REFERENCES:
patent: 3931644 (1976-01-01), Ward
patent: 4038693 (1977-07-01), Huffine et al.
patent: 4040105 (1977-08-01), Slindee
patent: 4052750 (1977-10-01), Barber et al.
patent: 4180840 (1979-12-01), Allan
Eddleman Alfred H.
Schatzel Thomas E.
Verbatim Corporation
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