Film blowing line with roll

Details Film blowing line with roll Film blowing line with roll

1988-12-21

1990-10-30

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

264 401, 425141, 425144, 425145, B29C 4792

Patent

active

049665367

ABSTRACT:
A film blowing line is disclosed which includes a winding roll to receive a folded film; the film having initially been tubular in shape. In the invention, the diameter of the winding roll is measured in an axial direction and, correspondingly, the thickness can be controlled with the aid of an actuating member, as a rule, differentially across the circumference of the tubular film.

REFERENCES:
patent: 3286302 (1966-11-01), Doering
patent: 4189288 (1980-02-01), Halter
patent: 4244897 (1981-01-01), Moon
patent: 4246212 (1981-01-01), Upmeier et al.
patent: 4339403 (1982-07-01), Upmeier et al.
patent: 4464319 (1984-08-01), Halter et al.
patent: 4594063 (1986-06-01), Reifenhauser et al.
patent: 4699580 (1987-10-01), Co

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