G - Physics – 11 – B
Patent
G - Physics
11
B
352/31.11
G11B 23/03 (2006.01) G11B 23/033 (2006.01) G11B 23/50 (2006.01)
Patent
CA 1258122
ABSTRACT OF THE DISCLOSURE A magnetic disk cassette of simplified design is provided for improving the disk cleaning function of a cassette liner and for stabilizing 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 addi- tion, 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 cir- cumferentially spaced a predetemined distance from a radially-extending set of tapered ribs.
517003
Polaroid Corporation
Smart & Biggar
LandOfFree
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