(under subclass 301) Filling apparatus having a vent passage which is provided with a trap or chamber for the accumulation of contents material which enters after the receiver is filled.
SEE OR SEARCH THIS CLASS, SUBCLASS:
36, for plural connected receivers in which a second receiver is supplied with material overflowing from the first receiver simultaneously with continued filling of the first receiver.
44+, for diverse fluid pressure systems having means to separate entrained liquids or foam from escaping gas, such means sometimes including a trap, and see the search notes to subclass 44.
303, for similar arrangements including a float valve in the chamber which cuts off the vent passage.
