Dual action valve for molten metal applications
US6739485B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2003 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Jul 28, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D41/14
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A molten metal supply system (90) includes a plurality of injectors (100) each having an injector housing (102) and a reciprocating piston (104). A molten metal supply source (132) is in fluid communication with the housing (102) of each of the injectors (100). The piston (104) is movable through a first stroke allowing molten metal (134) to be received into the housing (102) from the molten metal supply source (132), and a second stroke for displacing the molten metal (134) from the housing (102). A pressurized gas supply source (144) is in fluid communication with the housing (102) of each of the injectors (100) through respective gas control valves (146). The injectors (100) each include an intake/injection port (138) in the form of a dual action valve (500) adapted to admit and dispense molten metal from the injectors (100).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.