US PATENT SUBCLASS 414 / 297
.~.~ With means to ream or cut, or with collapsible means to form, vertical discharge passage in material during charging

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}
293  DF  .~ Charging or charge-distributing means {6}
297.~.~ With means to ream or cut, or with collapsible means to form, vertical discharge passage in material during charging

DEFINITION

Classification: 414/297

With means to ream or cut, or with collapsible means to form, vertical discharge passage in material during charging:

(under subclass 293) Apparatus wherein means is provided to form a vertical opening through the material being loaded while its level is rising in the receptacle, which opening subsequently will serve as a discharge route for the material, the means comprising either (a) a means to remove or displace the material and thereby form a self-sustaining hole therein, or (b) a self-erecting or manually erected conduit to form a walled hole in the material, which conduit collapses or is otherwise removed as the level of material falls during an unloading operation.