Method and apparatus for heating plastic preforms with absorption measurement
US12337521B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2022 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Mar 22, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/8411
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a method for heating plastic preforms, wherein the plastic preforms are transported along a predetermined transport path and are heated during this transport by applying electromagnetic radiation, wherein an absorption and/or transmission of the plastic preforms is determined for radiation in an infrared wavelength range, wherein an absorption and/or transmission of the plastic preforms and/or of the plastic containers produced from these plastic preforms is determined for radiation in a visible wavelength range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.