Stopper device for stopping a container neck
US8485373B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2009 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | Jan 1, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2251/1041
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention relates to a plugging device (1) that comprises a base (10) secured around the neck (2) and a cap (20) supported by the base and capable of movement between a closed and an open position. In order to improve the tamper-proof characteristic of the device, the invention comprises using, on the one hand, a breakable thread (30) having at least one longitudinal end permanently connected to a first portion (211) of the cap or the base and extending, before breaking, lengthwise along the periphery of said portion and, on the other end, a lug (40) permanently connected to another portion, respectively, of the base or the cap, and protruding towards the outside from said second portion. The lug is adapted to press at least on the free part of the thread until the thread is broken at a breaking area along the thread when the cap is moved for the first time from the closed position to the open position thereof, and to be interposed between the edges of said breaking area when the cap is then placed back into its closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.