Apparatus for calibrating a tubular foil balloon

Details Apparatus for calibrating a tubular foil balloon Apparatus for calibrating a tubular foil balloon

1988-04-07

1989-03-28

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Control means responsive to product weight or dimension

264 401, 2642094, 264563, 425 721, B29C 4792

Patent

active

048159573

ABSTRACT:
The apparatus for calibrating a tubular foil bag comprises at least two iris aperture calibrating devices and at least one segment calibrating device. The iris aperture calibrating devices are spaced from each other and each have a plurality of iris aperture leaves, e.g. sickle shape leaves, which are movable and adjustable with a positioning ring which is mounted in an iris aperture housing. The segment calibrating device has a plurality of curved segments which make up a polygonal structure, which are connected to a plurality of supporting or carrying members and which are adjustable with the aid of an adjusting lever system. The segment calibrating device is positioned between two adjacent iris aperture calibrating devices and the supporting or carrying members are attached to at least one of the iris aperture housings for the iris aperture devices. So that the iris aperture device can control the operation of the segment calibrating device as well as calibrate the adjusting lever system for the segment calibrating device is couplable to the iris aperture leaves and is operable by the iris aperture leaves.

REFERENCES:
patent: 3930781 (1976-01-01), Upmeier
patent: 3980418 (1976-09-01), Schott, Jr.
patent: 4408970 (1983-10-01), Bustin et al.
patent: 4473527 (1984-09-01), Fujisaki et al.
Page 334 of "Meyers enzyklopadisches Lexikon 1972, Band 4" (Meyers Encyclopedic Dictionary, vol. 4, p. 334-1972).

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