Lifter having an angled trailing edge and cut-out region for cle

Details Lifter having an angled trailing edge and cut-out region for cle Lifter having an angled trailing edge and cut-out region for cle

1992-10-16

1994-10-25

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Record medium

In container

G11B 2303

Patent

active

053594835

ABSTRACT:
A lifter for cleaning a flexible magnetic recording disc. The lifter forces a fabric liner on the inner surface of a cartridge toward the rotating disc. The perimeter of the lifter is configured so that the force profile of the lifter taken across the width of its leading edge is not characterized by sudden changes in force across its width. The lifter can include a cut-out region within the area of the lifter, the region being configured to increase the force applied by the lifter along the inner tracks of the magnetic recording disc. The lifter does not significantly increase the torque required to drive the disc. The invention also includes a method of cleaning a disc using the lifter described above.

REFERENCES:
patent: 4510546 (1985-04-01), Asami et al.
patent: 4620247 (1986-10-01), Papciak et al.
patent: 4654742 (1987-03-01), Harris et al.
patent: 4672499 (1987-06-01), Oishi et al.
patent: 4677516 (1987-06-01), Iizuka et al.
patent: 4677517 (1987-06-01), Gelardi et al.
patent: 4739433 (1988-04-01), Oishi
patent: 4750075 (1988-06-01), Oishi
patent: 4809114 (1989-02-01), Seto
patent: 4979065 (1990-12-01), Ikebe et al.
patent: 5083231 (1992-01-01), Veenstra et al.
patent: 5090010 (1992-02-01), Takahashi
Diagrams dated Dec. 12, 1991 showing Fuji and TDK lifter designs (2 pages).

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