# US 5,344,123 A · Melting and filling device

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- Number: US 5,344,123 A
- Document ID: US5344123A
- Status: Granted
- Kind: A
- Application number: 08/173,480
- Filed: 1993-12-27
- Granted: 1994-09-06
- Earliest claimed: 1992-01-31
- Assignees: Hanano Corporation
- Inventors: Takashi Hanano; Shigeo Furuta
- Web page: https://patentgrep.com/patent/US5344123A

## CPC

- B22D 17/2053: {using two or more cooperating injection pistons}
- B22D 17/30: Accessories for supplying molten metal, e.g. in rations (supplying molten metal in ration in general B22D39/00)
- B22D: CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES (shaping of plastics or substances in a plastic state B29C; metallurgical processing, selection of substances to be added to metal C21, C22)

## Abstract

The device has a device body including an inside space having an airtightness able to provide a nonactive gas atmosphere, the inside space having a charging port, a filling port and a melting chamber surrounded by an induction heating coil; a first piston transporting a non-ferrous alloy lump to the melting chamber; and a second piston permitting the melted non-ferrous alloy to flow out of the filling port.

## Claims

### Claim 1

A melting and filling device for melting a non-ferrous alloy lump and transferring the melted alloy to a mold, comprising:
a device body including an inside space having an airtightness able to provide an nonactive gas atmosphere, the inside space having a charging port, a filling port and a melting chamber surrounded by an induction heating coil;
a first piston for transporting the non-ferrous alloy lump to the melting chamber;
and a second piston, axially aligned with the first piston, for allowing the molten metal of non-ferrous alloy, formed in the melting chamber, to flow out of the filling port.

### Claim 2 (depends on 1)

A melting and filling device as set forth in claim 1, in which a pre-heating chamber for pre-heating the non-ferrous alloy lump to be charged into the inside space is connected to the charging port in such a manner that the pre-heating chamber together with the inside space are provided with an airtightness.