Apparatus and method for inspecting containers which are at least partially transparent to a predetermined electromagnetic radiation
US11815469B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 2022 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | Apr 28, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/8887
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for inspecting containers includes a rotation device which is adapted to rotate the container about the axis of symmetry; a camera sensitive to said predetermined electromagnetic radiation and with the container located in the field of view thereof; a processing unit to control the rotation device to move the container at a first angular speed constant for a first time period; acquiring at least a first and a second series of images of a portion of the container in a rotation thereof through 360°; to identify defective areas having at least one characteristic different from the characteristics of adjacent areas, generating first and second maps of the defective areas; to compare the position of the defective areas of the maps; to establish that first impurities are present in the container or in the liquid contained in the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.