Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1988-07-05
1989-06-27
Hecker, Stuart N.
Dynamic magnetic information storage or retrieval
Record medium
In container
G11B 2303
Patent
active
048435112
ABSTRACT:
A magnetic disk cassette of simplified design is provided for improving the disk cleaning function of a cassette liner and for stablizing the lateral motion of a magnetic disk rotating within the cassette in the region where the disk is coupled to a magnetic head for data recording or reproduction purposes. The magnetic disk cassette includes a magnetic disk and a pair of friction reducing, disk-cleaning liners with one liner being located on each side of and immediately adjacent the magnetic disk. When the magnetic disk cassette is fully assembled, the magnetic disk is sandwiched between the liner and a pair of disk-enclosing covers. In addition, a set of tapered, radially-extending ribs are formed on the inside major surface of each cover in a generally opposed relation such that when the disk and liners are sandwiched between the assembled covers, opposed tapered ribs engage and temporarily deform a portion of the disk and adjacent liners to thereby improve the cleaning function of the liners and stabilize the lateral movement of a portion of the magnetic disk lateral to its direction of rotation in the region coupled to the magnetic head, a region that is circumferentially spaced a predetermined distance from a radially-extending set of tapered ribs.
REFERENCES:
patent: 3975768 (1976-08-01), Jacques et al.
patent: 4131199 (1978-12-01), Hatchett et al.
patent: 4149207 (1979-04-01), Porter, Jr. et al.
patent: 4291353 (1981-09-01), Fletcher et al.
patent: 4301468 (1981-11-01), Brown et al.
patent: 4466037 (1984-08-01), Yoshida et al.
patent: 4481552 (1984-11-01), Dona et al.
patent: 4510546 (1985-04-01), Asami et al.
patent: 4626949 (1986-12-01), Brock et al.
Boyles, "Self-Pressurized Enclosure for Flexible Magnetic Disks," IBM TDB, Jan. 1977, vol. 19, No. 8, pp. 3177-3178.
Hecker Stuart N.
Polaroid Corporation
Severin David J.
Vale John S.
LandOfFree
Magnetic disk cassette having internal biasing ribs does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetic disk cassette having internal biasing ribs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic disk cassette having internal biasing ribs will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-817941