Method and stamping tool for waste-free stamping of packaging strips and packaging strips so fabricated
US4395929A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 4, 1982 |
| Grant date | Aug 2, 1983 |
| Priority date | — |
| Expiry date | Mar 4, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9447
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention sets forth a method and a corresponding stamping tool for waste-free stamping out packaging strips such as the so-called press-through packages. These press-through packages are made of a strip of foil comprising a lower foil strip with depressions for receiving tablets, lozenges or the like and a foil cover strip which closes off the depressions. The individual packaging strips, in order to enable problem-free further processing and to avoid injuries, have rounded corners. In order to avoid sharp, hooklike protrusions, which in the waste-free stamping out of packaging strips are created whenever there is shifting in the advancement of the length of foil, the forward stamping edge of the stamping tool is embodied in accordance with the invention such that when a packaging strip is stamped out, this forward stamping edge intersects the rearward edge of the previously stamped packaging strip such that an obtuse angle is created at the front edge of the packaging strip, seen in the direction of advancement of the strip. By so embodying the forward stamping edge of the stamping tool, packaging strips are produced which have a substantially uniform outer appearance, even d…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.