US PATENT SUBCLASS 202 / 228
.~.~.~.~ Gas or vapor circulating


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



202 /   HD   DISTILLATION: APPARATUS

81  DF  APPARATUS {4}
*  DD  .~ Types {3}
*  DD  .~.~ Autothermic {5}
227  DF  .~.~.~ Quencher {3}
228.~.~.~.~ Gas or vapor circulating


DEFINITION

Classification: 202/228

Receivers for hot distillation residue arranged to cool or quench the residue by circulation through or over it of neutral gas or by generation and/or circulation of steam or other vapor.

SEE OR SEARCH CLASS

110, Furnaces,

229+, for a solid fuel furnace provided with means to release a gas from the fuel.