Apparatus for cooling of a film, foil or sheet

Details Apparatus for cooling of a film, foil or sheet Apparatus for cooling of a film, foil or sheet

1993-10-26

1995-08-01

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Endless casting surface and cooperating harvesting means

264216, 425377, 425325, B29D 700

Patent

active

054375460

ABSTRACT:
A foil or film of plastic or rubber is extruded and placed upon a cooled drum for the cooling of the film or foil with the aid of an air sheet derived from a nozzle section which extends above the drum transverse to the direction of displacement of the foil or film. The nozzle has flow deflectors which are responsible from the walls to vary the deflectors. The flow deflectors are convex toward one another and have air foil configurations while being designed to deflect respective streams outwardly along the edges of the foil to resist curvature.

REFERENCES:
patent: 3121915 (1964-02-01), Heller
patent: 3141194 (1964-07-01), Jester
patent: 3597515 (1971-08-01), Widiger
patent: 3885940 (1975-05-01), Levecque et al.
patent: 3941086 (1976-05-01), Roncan
patent: 4071589 (1978-01-01), Latham et al.
patent: 4255365 (1981-03-01), Heyer
patent: 4524716 (1985-06-01), Mueller
patent: 4822267 (1989-04-01), Walz
patent: 5147595 (1992-09-01), Sanderford
Search Report (FR 9213072).

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