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EP0040352A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

A molten metal dispensing apparatus

Assignee: Fuji Electric Co Ltd
•
Filing: 1981-05-06
•
Granted: —
•
Expires: 2001-05-06
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Abstract

Abstract The apparatus includes a molten metal storage container (1) and a pouring passage (3) extending upwardly from the bottom of the storage container (1) and having an outlet in a position above the highest level (7) of molten metal (6) in the storage container. Compressed gas is introduced into a closed hollow space in the storage container (1) to apply pressure to molten metal (6) therein to discharge it through the outlet of the pouring passage (3). In orderto avoid any oxidation of molten metal (6) means or to operate with a small quantity of compressed inert gas means are provided for recovering gas from the storage container, compressing it and supplying the compressed gas into the storage container when any dispensation of molten metal is required.

Inventors

  • 👤 Tsuguharu Kohgyo-Dennetsu-Bu Gijutsu-Ka Ohmori
  • 👤 Sadaumi Kohgyo-Dennetsu-Bu Gijutsu-Ka Ueno

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 15:54
CPC Classifications
B; B22; B22D; B22D39/00; B22D39/06; B22D18/00; B22D18/04

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 147 words
- A molten metal dispensing apparatus including a molten metal storage container (1) and a pouring passage (3) extending upwardly from the bottom of said container (1) to a point above the highest level (7) of molten metal (6) in said container (1), and adapted for dispensing molten metal through said pouring passage (3) when compressed gas is introduced into a closed hollow space above said molten metal in said container (1) to apply pressure to said molten metal (6), characterized by a high pressure gas tank (8) in which said compressed gas is stored before it is introduced into said storage container (1), a low pressure gas tank (11) into which said compressed gas is recovered from said storage container (1) and a compressor (15) for compressing said gas from said low pressure gas tank (11) and returning it into said high pressure gas tank (8).
Claim 2
Dependent Claim 147 words
- A molten metal dispensing apparatus including a molten metal storage container (1) and a pouring passage (3) extending upwardly from the bottom of said container (1) to a point above the highest level (7) of molten metal (6) in said container (1), and adapted for dispensing molten metal through said pouring passage (3) when compressed gas is introduced into a closed hollow space above said molten metal in said container (1) to apply pressure to said molten metal (6), characterized by a high pressure gas tank (8) in which said compressed gas is stored before it is introduced into said storage container (1), a low pressure gas tank (11) into which said compressed gas is recovered from said storage container (1) and a compressor (15) for compressing said gas from said low pressure gas tank (11) and returning it into said high pressure gas tank (8).
Claim 3
Dependent Claim 26 words
- A molten metal dispensing apparatus as claimed in claim 1, wherein a substantially constant negative pressure is maintained in said low pressure gas tank (11).
Claim 4
Dependent Claim 39 words
- A molten metal dispensing apparatus as claimed . in claims 1 or 2, wherein said compressor (15) is operated in such a manner as to maintain a substantially constant positive pressure in said high pressure gas tank (8).
Claim 5
Dependent Claim 21 words
- A molten metal dispensing apparatus as claimed in any of claims 1 to 3, wherein said compressed gas is air.
Claim 6
Dependent Claim 23 words
- A molten metal dispensing apparatus as claimed in any of claims 1 to 3, wherein said compressed gas is an inert gas.

References Cited (Backward Citations)

DE2624435A1 Cited
BE887917A Cited

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