Filling machine
US6751925B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2001 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | Dec 18, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7166
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a filling apparatus establishing positional coincidence between creases preformed in a packaging material and actual creases to thereby improve the appearance of a packaging container. A light source irradiates a portion of the outer circumferential surface of a packaging material tube which includes an overlap. A sensor receives light emitted from the light source and reflected from the outer circumferential surface of the tube. The overlap is detected as a peak in the sensor output. Light reflected from an edge portion of the packaging material exhibits greater intensity and is seen as a peak in the sensor output indicating position of the overlap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.