Dynamic magnetic information storage or retrieval – Record copying – Contact transfer
Patent
1992-12-11
1996-12-03
Psitos, Aristotelis
Dynamic magnetic information storage or retrieval
Record copying
Contact transfer
G11B 586
Patent
active
055814174
ABSTRACT:
A ported vacuum drum (20, 56-98) is provided on its exterior cylindrical surface (22) with a master layer (24) of magnetic recording medium in position to contact a slave layer (14) of magnetic recording medium provided on one side and along at least one edge of a web (10); so that, vacuum applied (74-82) between the cylindrical surface and the web at locations (88-94) spaced from the zone of contact (98) between the recording media will hold the slave layer on the web securely in contact with the master layer on the drum as the drum rotates, thereby permitting anhysteretic recording from the master layer to the slave layer. A method of anhysteretically recording is taught.
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Bailey, Sr. Clyde E.
Eastman Kodak Company
Psitos Aristotelis
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