Patent · US Active

Method and apparatus for manufacturing plastic containers with infrared absorption monitoring

US8163225B2 · kind B2 · utility

1Cited by

2References

8Claims

0Family size

Assignee

KRONES AG · DE

Inventors

Jochen Forsthovel · Regensburg, DE
Rudolf Fiegler · Regensberg, DE
Ulrich Lappe · Regensburg, DE

Key dates

Filing date	Apr 17, 2009
Grant date	Apr 24, 2012
Priority date	—
Expiry date	Jul 1, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG01N21/9081
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An apparatus and a method for manufacturing plastic containers, where the plastic containers are produced from aplastic material such as recycled plastic. The plastic preforms are heated in a heating unit and expanded into plastic containers in an expansion device. An infrared absorption degree of the plastic material or of the plastic preforms produced from said plastic material is then examined at least once in the course of the production process. From this examination conclusions can be drawn with respect to the quality of the preforms and their behavior when they are being heated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.