Tube having a head of a plastic composition including a detachable closure
US5640998A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1994 |
| Grant date | Jun 24, 1997 |
| Priority date | — |
| Expiry date | Nov 14, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D35/44
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A tube (1) including a head (2) of molded plastic composition and a flexible sidewall (4) affixed to this head (2), including a neck (6 and 7) with an opening (8) connected by a detachable sealed annular portion (11) to a continuous bottom (12) of a closure (20) in the form of an inverted hat topping the neck, the bottom (12) of the closure being joined to an external sidewall (13) of the closure, and the closure carrying a means (17) for reclosing the neck in a sealed manner after the detachment of said annular portion (11). The neck has an inner annular edge (7) demarcating its opening (8), the edge (7) and an annular portion (14 and 15) of the closure (20) that extends from the junction of the base (12) and the annular detachable portion (11) up to an annular portion of the external sidewall (13) located above the connection (16) of the base (12) and the sidewall (13) each have a thickness of between 1.1 and 1.6 mm, their rigidity thus promoting the detachment of the detachable annular portion (11). The invention is applicable to tubes with a detachable cover containing cream-like or paste-like products, in particular toothpaste.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.