.~ By immersing an article to be treated in bath of molten material, e.g., salt bath
DEFINITION
Classification: 266/120
(under subclass 114) Device wherein the contacting apparatus includes a tank containing a liquid made from melted normally solid matter, e.g., salts.
(1) Note. Molten material, as used herein, is limited to a material which is in the solid state under standard atmospheric condition of pressure and temperature, which material is liquefied by an altering of one or both of these conditions, e.g., heating a mass of salt to fuse the same. Thus a bath composed of a material which is normally a liquid under standard atmospheric conditions, e.g., mercury, oil, water, is not found herein unless combined with a molten material bath.
SEE OR SEARCH CLASS
148, Metal Treatment, appropriate subclasses for treatment of solid or semi-solid metal to modify or maintain the internal physical structure (i.e., microstructure) or chemical property of metal or for processes of reactive coating of metal. Particularly, see
631+, or 711 of Class 148 for use of a fused molten material to treat the metal.
