Anti-leak device for tube container
US8302823B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 21, 2009 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Apr 16, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D35/46
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An anti-leak device for a tube container is disclosed, to have a predetermined amount of contents in the tube container be continuously extruded and then prevent more extrusion, and to prevent infiltration of external air. The anti-leak device includes a main body having a head with a tube outlets and a connection groove, and a leakage prevention unit having an opening and closing part, an insertion part and a fixed part. The opening and closing part is inserted in an inlet path of the insertion part. The insertion part is inserted in the fixed part having a discharge hole and engaged with the connection groove, thereby forming a movement space for the opening and closing part to reciprocate between the tube outlet and the insertion part. The opening and closing part directly opens and closes the tube outlet not to allow external air into the main body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.