.~ Having means preventing damage to introducing means, e.g., wear linings, cooling
DEFINITION
Classification: 266/270
(under subclass 265) Device including means to protect the tubular means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
189, for means cooling a tuyere in a metallurgical apparatus.
SEE OR SEARCH CLASS
122, Liquid Heaters and Vaporizers,
6.6, for liquid-cooled tuyere elements, per se, where a coolant flows through the tuyere element in a closed path. Those patents which disclose a diversity of water cooled blast furnace accessories, (e.g., monkeys, cooling boxes), in addition to tuyeres and which either specifically claim one of these diverse accessories or includes a claim generic to all such accessories will be placed as an original in Class 266 and will be cross referenced to Class 122. 239, Fluid Sprinkling, Spraying, and Diffusing,
591, for nozzles of general utility having wear linings.
