US PATENT SUBCLASS 414 / 202
.~.~.~.~.~ With means to improve seal between mating surfaces


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

Internet Version by PATENTEC © 1999      Terms of Use



414 /   HD   MATERIAL OR ARTICLE HANDLING

147  DF  CHAMBER OF A TYPE UTILIZED FOR A HEATING FUNCTION AND MATERIAL CHARGING OR DISCHARGING MEANS THEREFOR {6}
160  DF  .~ Charging of chamber {7}
199  DF  .~.~ By material supporting structure movable, or having a movable component, to release material into chamber by gravity {4}
200  DF  .~.~.~ Including serially arranged closures {1}
201  DF  .~.~.~.~ At least one comprising bell of bell and hopper type supporting structure {2}
202.~.~.~.~.~ With means to improve seal between mating surfaces


DEFINITION

Classification: 414/202

With means to improve seal between mating surfaces:

(under subclass 201) Apparatus wherein means is provided on the bell or hopper to improve the seal between the mating surfaces of these members.