Closing device with a piercing element
US6851576B2 · kind B2 · utility
24Cited by
12References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 10, 2002 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Jun 10, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2251/0096
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A closing device arranged above a pierceable point of a closed container including a lower part with a cylindrical discharge nozzle, a screw cover and a piercing element. The piercing element, which is open on both sides, is displaced downwards in an axial direction in a screw-like manner in a screw cover in the lower part of the closing device. The piercing element has two cutting elements offset at an angle which produce a continuous, interconnected cutting line, and a displacing element which shifts a partially cut-out tab of the container from a region of the discharge nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.