Drum assembly having a lower fixed drum and an upper rotary drum

Details Drum assembly having a lower fixed drum and an upper rotary drum Drum assembly having a lower fixed drum and an upper rotary drum

1993-03-26

1996-06-18

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 84, 36013024, G11B 1561, G11B 552, G11B 553

Patent

active

055284388

ABSTRACT:
A rotary bead-drum assembly for use in a video tape recorder that makes high-density recording. The assembly comprises a rotating top drum and a stationary bottom drum. Magnetic tape is helically wound on the outer surfaces of the two drums. A plurality of magnetic transducing heads are mounted to the top drum. An upward conical surface is formed on the top drum over the heads to make the elongation coefficient of the lateral extent of the tape uniform.

REFERENCES:
patent: 4314284 (1982-02-01), Sato et al.
patent: 4316225 (1982-02-01), Maruyama et al.
patent: 4517615 (1985-05-01), Hino
patent: 4719528 (1988-01-01), Sato
patent: 5021908 (1991-06-01), Morimoto et al.
patent: 5060104 (1991-10-01), Kitaori et al.

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