US PATENT SUBCLASS 141 / 251
.~ Relatively receding discharge assistant and receiver engaging means

Current as of: June, 1999
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141 /   HD   FLUENT MATERIAL HANDLING, WITH RECEIVER OR RECEIVER COACTING MEANS

250  DF  WITH MEANS TO MOVE SUPPLY MEANS AND/OR RECEIVER TO, FROM OR DURING FLOW RELATION {14}
251.~ Relatively receding discharge assistant and receiver engaging means {6}
252  DF  .~.~> With external form for receiver
253  DF  .~.~> With lift or power drive for receiver support
254  DF  .~.~> Receiver support bias varied with position of support
255  DF  .~.~> With feeder and additional flow modifier or retarder at foot of fill tube
256  DF  .~.~> Continuous feeding during filling (e.g., rotary auger) {1}
258  DF  .~.~> Axially reciprocating discharge assistant {4}

DEFINITION

Classification: 141/251

(under subclass 250) Apparatus comprising means to support a receiver against gravity and separate means assisting the flow of contents material from a supply source, said means being so related as to require relative motion of receiver and flow assisting means away from each other during normal filling operation.

(1) Note. This and the indented subclasses take all discharge assistant-type fillers, which qualify under subclass 250 even where no source of supply is claimed.

(2) Note. This type of filling operation is frequently referred to as "uniform density" filling.

SEE OR SEARCH THIS CLASS, SUBCLASS:

193+, for such systems having control means responsive to the degree of filling or to the filling head or receiver position resulting from the desired degree of filling.