Apparatus for moulding a part of a packaging container
US8580179B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 26, 2008 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Oct 14, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2001/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for molding a thermoplastic package part(s) to an end portion of a container body includes inner and outer mold elements between which a mold cavity per package part is formed. At least one of these mold elements is at least partly freely suspended. When one package part is molded with the mold elements, plastic melt is injected in a first number ≧1 of points in the cavity, an island of plastic melt for each point is formed inside the cavity, and the distribution of the points causes a force center to pass through a surface defined by a parallel projection of each first number of islands on a plane orthogonal to a direction of the compression force, and when the first number >1, a second number of imaginary straight lines interconnecting a third number of parallel projections such that the surface is at its maximum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.