Patent · US Active

Method and apparatus for analyzing plastic preforms

US11796461B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

KRONES AG · DE

Inventors

Philipp OLENBERG · Regensburg, DE
Simon Fischer · Oeschgen, CH
Robert AUST · Illkofen, DE
Jochen Forsthoevel · Regensburg, DE

Key dates

Filing date	Dec 30, 2021
Grant date	Oct 24, 2023
Priority date	—
Expiry date	Jan 1, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG01N2021/845
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Disclosed is a method analysing plastic preforms, wherein plastic preforms are transported along a predetermined transport path by a transport device and an infrared absorption coefficient is determined in at least one region of the plastic preform, wherein, in order to determine the infrared absorption coefficient of the plastic preform, infrared radiation is applied to the plastic preform by a first radiation device and radiation passing through the plastic preform is received by at least one receiving device and an infrared absorption behaviour of the plastic preform is determined from this received radiation, wherein the radiation device acts upon the plastic preforms with infrared radiation in a predetermined wavelength range and an evaluation device evaluates the radiation as a function of its wavelength in a wavelength range from 1500 nm to 2000 nm.

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