Injection nozzle and method for injection molding
US6214275A · kind A · utility
9Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1999 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | Jun 4, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/2872
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A valve stem is mounted in a nozzle body, with the valve stem moving from an open position retracted from the injection orifice permitting the flow of resin to the mold cavity, to a closed position blocking the injection orifice and preventing the flow of resin to the mold cavity, and to an advanced position within the gate nub area to assist in the ejection of a molded part and clear the gate nub area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.