Metal melting furnace

• US 3,128,327 A
• Filed: 04/02/1962
• Issued: 04/07/1964
• Est. Priority Date: 04/02/1962
• Status: Expired due to Term

• Current Assignee: Richard C. Upton
• Original Assignee: Richard C. Upton
• Inventors: Upton, Richard C.
• Application Number:
  US04/184,323
• Time in Patent Office: 736 Days
• US Class Current: 373/121
• CPC Class Codes: C22B 21/0084 melting and handling molten aluminium C22B21/02, C22B21/04 and C22B21/06 take precedence
• CPC Class Codes: C22B 9/10 with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agentsC22B9/18 takes precedenceC22B9/006 takes precedence
• CPC Class Codes: C22B 9/106 the refining being obtained by intimately mixing the molten metal with a molten salt or slag
• CPC Class Codes: H05B 3/60 Heating arrangements wherein the heating current flows through granular powdered or fluid material, e.g. for salt-bath furnace, electrolytic heating H05B3/38 takes precedence

Claims

1. A METAL MELTING AND POURING FURNACE COMPRISING A CHAMBER CONTAINING AN UPPER LAYER OF MOLTEN METAL AND A LOWER LAYER OF MOLTEN SALT OF GREATER SPECIFIC GRAVITY THAN SAID MOLTEN METAL, A DISCHARGE SPOUT CONNECTED TO SAID CHAMBER ABOVE THE NORMAL LEVEL OF SAID MOLTEN METAL, A SECOND CHAMBER CONTAINING MOLTEN SALT , A DISPLACER INSERTABLE INTO SAID MOLTEN SALT, A FLUID CONDUIT HYDRAULICALLY CONNECTING SAID LOWER LAYER OF MOLTEN SALT IN SAID FIRST CHAMBER WITH THE MOLTEN SALT IN SAID SECOND CHAMBER, MEANS FOR MOVING SAID DISPLACER INTO THE MOLTEN SALT IN SAID SECOND CHAMBER TO THEREBY RAISE THE LEVEL OF MOLTEN METAL IN SAID FIRST CHAMBER AND DISCHARGE SAID METAL THROUGH SAID SPOUT, AND MEANS FOR WITHDRAWING SAID DISPLACER FROM THE SALT IN SAID SECOND CHANBER.