Hydraulic device for pumping molten metal and/or controlling...

Details Hydraulic device for pumping molten metal and/or controlling... Hydraulic device for pumping molten metal and/or controlling...

2008-09-23

2008-09-23

Kramer, Devon (Department: 3746)

Pumps

Expansible chamber type

Distributor moved by separate fluid responsive surface

C092S176000, C222S594000, C266S239000

Reexamination Certificate

active

10497562

ABSTRACT:
A hydraulic device for pumping molten metal and/or controlling its flow, comprising an enclosure that forms internally a cylindrical chamber, for the connection of at least one first duct and one second duct for the passage of molten metal, within which a piston can slide hermetically in order to pump and/or control flow, an insulating cushion of inert gas being interposed between the piston and the molten metal, the piston being associated with an actuator for moving it with a reciprocating rectilinear motion.

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