Apparatus and process for injection molding articles of plastics material
US7140858B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 31, 2003 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | May 23, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/0408
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
It is provided an apparatus for injection molding articles of plastics material comprising: molds (2a) and countermolds (2b) forming molding units (3), molding cavities (7) being defined inside said molds and countermolds; one injection assembly (8) and one auxiliary assembly (9) adapted to respectively supply melted plastics material and pressurized fluid into the molding cavities; molding units (3) being movable with respect to said injection assembly (8) and auxiliary assembly (9); and removable connecting devices (12, 8a), and check means (20) adapted to avoid counter flows from molding cavities (7), being provided between molding units (3) and injection assembly (8) and auxiliary assembly (9).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.