Coating hopper inserts

Details Coating hopper inserts Coating hopper inserts

1993-03-26

1995-02-14

Jones, W. Gary

Coating apparatus

Immersion or work-confined pool type

Work-confined pool

118DIG4, B05C 1100

Patent

active

053891503

ABSTRACT:
The present invention describes slot inserts for use in a coating hopper having at least one metering slot. The slot inserts allow widthwise adjustment of the coating width. The slot inserts push fit into the metering slot and are held by friction between the walls of the metering slot. In one aspect of the invention, the inserts have different widthwise dimensions at each end allowing control over the edges. For dual cavity hoppers, the slot inserts can be shaped so as to prevent stagnant regions within the hopper cavities.

REFERENCES:
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patent: 2923971 (1960-02-01), Nelson
patent: 3870454 (1975-03-01), Penrod
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patent: 4293517 (1981-10-01), Knox
patent: 4389181 (1983-06-01), Frick
patent: 4977852 (1990-12-01), Ishizaka
patent: 5099786 (1992-03-01), Shibata et al.
E. W. Veazey and N. Barrera, "Barrier Screw Performance at Several Blown Film Die gaps", 1987.
Research Disclosure 17533 "Slide hoppers for use in coating liquid compositions".

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