Metal molding
US7694714B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 9, 2006 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Feb 9, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S164/90
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Method of operating metal molding system configured to handle mold, system including injection unit having: output port; and machine nozzle defining conduit passageway, nozzle including: egress end, ingress end, conduit passageway for receiving molten metal; and mechanical valve received in passageway, valve positioned between egress end and ingress end, and valve operable in opened and closed positions. Method includes: processing volume of molten metal; placing valve in closed position, so that prior to application of injection pressure by unit, volume of molten metal is located; (i) downstream of valve, and (ii) between egress end and valve; and placing valve in opened position, so that volume of molten metal is injected, in response to application of injection pressure into, at least in part, mold cavity; and actuating valve to closed position, so that another volume of molten metal is located: (i) downstream of valve, and (ii) between egress end and valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.