Method and apparatus for inspecting glass containers
US4424441A · kind A · utility
12Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1981 |
| Grant date | Jan 3, 1984 |
| Priority date | — |
| Expiry date | Jun 12, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V8/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention relates to method and apparatus for inspecting glass containers and other types of containers having transparent or translucent sidewalls for defects, and especially to inspecting the finish portion of glass containers for defects such as horizontal checks. The entire finish portion is illuminated by diffused light and the check-type defects reflect light upwardly into an Erfle eyepiece which is then imaged onto a matrix-type light sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.