Screw tip and molding system apparatus
US7270536B2 · kind B2 · utility
0Cited by
9References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 13, 2004 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Feb 2, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D17/2061
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A screw tip for use in a molding system apparatus is disclosed. The screw tip includes a connection section and screw tip head section. The screw tip head houses an entry port, or entry ports, an accumulation chamber, and a check valve chamber. A check valve is provided when assembled with the screw tip. The check valve may be a cylindrical plate or a spherical member or a conical member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.