Preform for making a container
US6079579A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 22, 1996 |
| Grant date | Jun 27, 2000 |
| Priority date | — |
| Expiry date | May 22, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2949/0792
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A preform adapted for being subjected to blow molding into a container is provided. The preform has a bottom (4), and a tubular wall (1) extending upwardly from the bottom (4) in an elongated manner. The part of the wall (1) opposite bottom (4) forms a pouring spout (20) with a profiled neck (3) encompassing a pouring opening. The pouring spout (20) is integral with the tubular wall (1). The spout (20) has a symmetrically rotational configuration, the neck (3) being provided with an externally extending annular projection (24) forming a first pouring no-drip rib at the opening. The rib includes a downwardly extending pouring surface which extends outwardly from the wall (1). The external profile of the neck (3) is provided with at least one further annular projection (21, 22) forming at least one second no-drip rib (21, 22). The first pouring no-drip rib and the at least second no-drip rib (21, 22) delimitate an annular recess (28) therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.