US PATENT SUBCLASS 432 / 245
.~ Having distinct heat shield, conductor, director or expansion relief structure

Current as of: June, 1999
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432 /   HD   HEATING

239  DF  WORK FEEDING, AGITATING, DISCHARGING OR CONVEYING SUBCOMBINATION {7}
245.~ Having distinct heat shield, conductor, director or expansion relief structure

DEFINITION

Classification: 432/245

(under subclass 239) Apparatus including or having associated

therewith structure specialized to (1) controlling the flow of heat; (2) protecting the apparatus or work from heat or (3) relieving or preventing stress from expansion or contraction produced by temperature changes.