Gerard M Cullan

US Patent:

51346290, Jul 28, 1992

Filed:

Feb 8, 1990

Appl. No.:

7/477290

Inventors:

Gerard M. Cullan - Webster MA

Assignee:

Norton Company - Worcester MA

International Classification:

H05B 616

US Classification:

373162

Abstract:

A high frequency core and coil electric metal melting furnace is shown. This furnace has a lined channel in its inductor for carrying the molten metal. The invention provides an improved inductor for a core and coil furnace that is not subject to leakage of the molten metal from the channel into the rammed refractory support bed for the channel which leakage otherwise shortens the lift of the furnace. Also a method of lining the channel in the inductor for carrying the molten metal which forms the core is disclosed.

US Patent:

54954959, Feb 27, 1996

Filed:

May 25, 1995

Appl. No.:

8/450096

Inventors:

Gerard M. Cullan - Webster MA

Assignee:

Saint-Gobain/Norton Industrial Ceramics Corporation - Worcester MA

International Classification:

H05B 622

US Classification:

373155

Abstract:

This invention relates to a refractory lining for use in a coreless induction furnace having a refractory crucible, wherein the refractory lining lines the inner surface of the refractory crucible and has a porosity of between 0. 2% and 1%.