公开(公告)号：DE3271069D1

公开(公告)日：1986-06-12

申请号：DE3271069

申请日：1982-12-14

Applicant: IBM

Inventor： CHENOWETH ROGER DON ,  MUELLER HERBERT ALLEN ,  SMITH DONALD JAY ,  ZELL MICHAEL NORMAN

IPC: G11B23/033 ,  G11B23/50 ,  G11B23/02

公开(公告)号：DE3061623D1

公开(公告)日：1983-02-17

申请号：DE3061623

申请日：1980-07-10

Applicant: IBM

Inventor： CHENOWETH ROGER DON ,  SMITH DONALD JAY

IPC: G11B3/58 ,  G11B23/033 ,  G11B23/50 ,  G11B23/02 ,  G11B17/02

Abstract: To reduce the risk of contamination by pieces of the wiper lining becoming detached, the transducing apertures (511;513), in the wiper lining (502, 503, 504, 505) of a flexible magnetic data storage disk/jacket assembly, are cut to larger dimensions than the jacket apertures (28X) registering therewith are punched to. Preferably the wiper lining is cut into two parallel separated strips, and after the fixing of the strips to the jacket blank (118 X) the blank is punched in the aperture defined by the gap between the strips. A single wiper lining aperture can accommodate two registered jacket apertures which can be off-centre with respect to the wiper lining aperture.