Ampule score line detection
US4136779A · kind A · utility
19Cited by
8References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1977 |
| Grant date | Jan 30, 1979 |
| Priority date | — |
| Expiry date | Dec 22, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07C5/3408
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention relates to the inspection of glass ampules to determine whether or not a complete score line is present. A laser beam is directed to the point on the ampule where a score line would be located. The laser beam is reflected in a diffuse or specular fashion depending upon whether or not a score line is present. By detecting the amount of light which is diffusely reflected in a particular direction, determination of the presence of a score line is possible. The same inspection may be utilized to determine whether the constriction on an ampule is of the proper diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.