Device for cooling a foil tubing

Details Device for cooling a foil tubing Device for cooling a foil tubing

1986-04-22

1988-01-05

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

264569, 4253261, 4253871, B29C 4792

Patent

active

047173238

ABSTRACT:
A device for cooling foil tubing as it issues from an annular nozzle surrounded by an annular air outlet orifice. A first cylindrical chamber is connected in the direction of the course of the foil tubing to the air outlet orifice, and has an iris diaphragm at its upper end. The air flowing into the chamber flows out between the inner rim of the diaphragm and the foil tubing. At least one first additional chamber is connected to the first chamber at the other side of the iris diaphragm. The additional chamber has a first additional iris diaphragm at its upper end which has an adjusting mechanism independent of the iris diaphragm at its upper end of the first chamber. The walls of both chambers are constructed of solid material.

REFERENCES:
patent: 3363035 (1968-01-01), Niiho et al.
patent: 3663134 (1972-05-01), Coquelin
patent: 3852392 (1974-12-01), Davis et al.
patent: 4388061 (1983-06-01), Bebok
patent: 4408970 (1983-10-01), Bustin et al.
patent: 4447387 (1984-05-01), Blakeslee, III et al.
patent: 4473527 (1984-09-01), Fujisaki et al.
patent: 4478564 (1984-10-01), Shinmoto
patent: 4624823 (1986-11-01), Audureau et al.

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