US PATENT SUBCLASS 141 / 248
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FLUENT MATERIAL HANDLING, WITH RECEIVER OR RECEIVER COACTING MEANS
PLURAL FILLING MEANS
(under subclass 234) Filling apparatus in which two filling means operate out of phase, e.g., one is necessarily inoperative for filling while the other is operating to fill a receiver.
SEE OR SEARCH THIS CLASS, SUBCLASS:
99, for filling apparatus comprising plural diverse filling lines, one line being out of phase or out of step with the other.
SEE OR SEARCH CLASS
265+, for sets of discharge assistant units which may operate alternately; subclass 278 for alternatively usable units in sets of dispensers.