Apparatus and method for checking of containers
US7982868B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2005 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Sep 10, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2201/066
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for detecting one or more foreign substances in one or more containers filled with liquid, comprising of: transporting the containers filled with liquid in a substantially straight line at relatively high speed in a production environment; —illuminating each container with content with one or more fixedly disposed light sources; and —inspecting the container with content from preferably two or more different orientations using two or more cameras, wherein cameras and lighting are disposed substantially fixedly relative to each other, while the cameras and light sources are mutually connected such that in a short time two or more images of a container filled with liquid can be recorded with mutually differing illumination and/or angle of incidence; —comparing the foreign substances in the two or more images; and —wherein a container filled with liquid is rejected on the basis of the probability distribution obtained from the comparisons, wherein above a determined probability it is concluded that the foreign substance is a glass particle or other undesirable particle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.