(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
222, Dispensing,
265+, for sets of discharge assistant units which may operate alternately; subclass 278 for alternatively usable units in sets of dispensers.
