X-ray inspection method and apparatus
US3958078A · kind A · utility
35Cited by
11References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1974 |
| Grant date | May 18, 1976 |
| Priority date | — |
| Expiry date | Aug 30, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N23/043
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Articles such as glass jars filled with food products are inspected for defects by scanning an x-ray image to provide video signals which are processed in a novel manner to provide increased sensitivity to detect very small foreign particles without decreasing a tolerance for normal variations, to inspect substantially the entire contents of a container such as a jar even if it has a varying diameter, without the need for precise positioning of the articles within an inspection zone, and without a need for an x-ray or optical mask tailored to fit each type of jar to be inspected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.