Coater

Details Coater Coater

1990-04-06

1993-02-16

Wityshyn, Michael G.

Coating apparatus

Immersion or work-confined pool type

Work-confined pool

118419, 427131, 427356, 4274193, B05C 502, B05C 906

Patent

active

051867540

ABSTRACT:
An extruder for coating magnetic layers onto electro-magnetic recording tape is disclosed, which is provided with two reservoirs and two outlet channels so as to permit simultaneous coating of two layers. The two outlet channels meet at an angle and merge into a single outlet channel, which extrudes the two layers between a front edge and a rear edge. The front edge has a shape of curvature, and the rear edge protrudes beyond a tangential line drawn from the end of the front edge curvature. The extruder is capable of producing double layered magnetic tape with or without a mixed zone between layers.

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patent: 4874633 (1989-10-01), Komatsu et al.
patent: 4995339 (1991-02-01), Tobisawa et al.
patent: 5042422 (1991-08-01), Tobisawa et al.
patent: 5072688 (1991-12-01), Chino et al.

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