Air guide for tape copying apparatus

Details Air guide for tape copying apparatus Air guide for tape copying apparatus

1986-05-29

1987-10-06

Cardillo, Raymond F.

Dynamic magnetic information storage or retrieval

Record copying

Contact transfer

360 17, G11B 586, G11B 5008

Patent

active

046987002

ABSTRACT:
In a tape signal copying apparatus in which signals recorded on a running mother tape are copied onto a running copy tape by urging the two running tapes against a tape guide member by air blown from an air blow-off slit and by applying a magnetic field or heat to the tapes, an air pool groove is formed in a wall of an air guide member at such a position as to face the tape guide member to further increase air pressure against the running tapes within an area where signals have already been copied. The higher air pressure elminates an offset in the mutual positional relationship between two tapes due to tape extension fluctuations, and therefore prevents a harmful influence such as demagnetization or thermal disturbance of other signals recorded on the mother tape upon signals already recorded on the copy tape, so that high level signals can be reliably copied between the two tapes.

REFERENCES:
patent: 3161120 (1964-12-01), Timares et al.
patent: 3472971 (1969-10-01), Van Den Berg
patent: 3544732 (1970-12-01), Bauer
patent: 3813688 (1971-03-01), Dolby et al.
patent: 4363038 (1982-12-01), Fayling

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