Membrane piercing closure and spout assembly
US5482176A · kind A · utility
73Cited by
11References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1994 |
| Grant date | Jan 9, 1996 |
| Priority date | — |
| Expiry date | Mar 16, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D77/067
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A closure assembly for piercing a diaphragm over a discharge opening in a container comprising a cap of cup-like form having internal thread means and a generally tubular spout member mounted on the container surrounding the diaphragm and a piercing fitment disposed interiorly of the spout member having a series of depending teeth arranged in a circular array and cooperating interengaging means between the spout member and piercing fitment and cap whereby rotational movement of the cap in one direction effects downward displacement of the piercing fitment to pierce the diaphragm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.