Tube made of plastics material having a tearable cap, said tube with a cover
US5586672A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1995 |
| Grant date | Dec 24, 1996 |
| Priority date | — |
| Expiry date | Aug 17, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2251/0071
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention relates to a tube (1) of which the head (2) comprises an impermeable cap (5) which may be torn by twisting, characterized in that this cap has a lateral surface (5) of polygonal contour (6) inclined at less than 10.degree. to the axis (16) of the tube (1) and a tear zone (10) contained between the lateral surface (50) and an internal surface (11) of the cap (5) comprising at least one thin portion having a minimum thickness of 0.05 to 0.18 mm and at least one portion (9, 9') which is at least 1.5 times thicker. The invention also relates to the tube (1) accompanied by a cover maintaining the integrity of the periphery of the cap and comprising a key fitting over the cap so as to tear it by twisting, and to its use in particular for storing and dispensing liquids in metered droplets. The tube is typically used for storing and dispensing medical or cosmetic liquids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.