US PATENT SUBCLASS 52 / 169.11
.~ Means to control heat transfer; e.g., insulation or frostline positioning

Current as of: June, 1999
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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

169.1  DF  SPECIFIED TERRANEAN RELATIONSHIP {11}
169.11.~ Means to control heat transfer; e.g., insulation or frostline positioning

DEFINITION

Classification: 52/169.11

(under subclass 169.1) Structure with means to control the transfer of heat between a building and the earth. The means can include a positioning of a building relative to a "frostline", i.e., the maximum depth of freezing.