US PATENT SUBCLASS 414 / 310
.~.~.~.~ Comprising screw conveyor


Current as of: June, 1999
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414 /   HD   MATERIAL OR ARTICLE HANDLING

288  DF  STATIC RECEPTACLE AND MEANS FOR CHARGING OR DISCHARGING, OR FACILITATING THE CHARGING OR DISCHARGING OF, THE RECEPTACLE {7}
304  DF  .~ Nongravity discharging means {4}
305  DF  .~.~ Including at least one discharge assistant of the compound motion type {2}
306  DF  .~.~.~ Having compound motion assistant located proximate to bottom of receptacle and displaceable generally parallel thereto {4}
310.~.~.~.~ Comprising screw conveyor {2}
311  DF  .~.~.~.~.~> Including means for loosening packed material
312  DF  .~.~.~.~.~> Having receptacle-reacting element of displaceable-movement drive means located on conveyor


DEFINITION

Classification: 414/310

Comprising screw conveyor:

(under subclass 306) Apparatus wherein the discharge assistant consists of one or more conveyors of the kind having a material-moving element in the form of a helical thread.