US PATENT SUBCLASS 165 / 90
.~.~ With means applying fluids for exchange through drum wall

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

Internet Version by PATENTEC © 1999      Terms of Use


165 /   HD   HEAT EXCHANGE

86  DF  MOVABLE HEATING OR COOLING SURFACE {4}
89  DF  .~ Rotary drum {1}
90.~.~ With means applying fluids for exchange through drum wall {1}
91  DF  .~.~.~> With drum surface scraper

DEFINITION

Classification: 165/90

(under subclass 89) Apparatus with means positioning, directing or holding an exchanging fluid against the exterior of the tank or cylinder.