Multi-path compression molding apparatus
US6368094B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1999 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Nov 22, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/809
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus delivers plural molten plastic pellets into cavities for compression molding of the pellets into bottle closures or bottle closure liners. The apparatus is provided for delivering molten plastic pellets from a supply of molten plastic to a plurality of molding blocks, each molding block having a row of cavities. The molding blocks are carried on a rotating carousel. The apparatus includes a rotating multi-cutter with a plurality of cutter blades, and a manifold block which receives the extruded molten-plastic and delivers the molten plastic to a plurality of nozzles, each nozzle aligned with one or more of the cutter blades. The cutter blades remove a row of plastic pellets from the molten plastic at the nozzles and deliver the plastic pellets into one row of cavities of a molding block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.