(under the class definition) Dispensers involving combinations of supply container and trap chamber.
(1) Note. These traps are stationary or rigidly associated with the supply container, as distinguished from the movably related combinations previously provided for, although they may have movable parts as cutoff or volume varying means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
129+, for trap chamber dispensers combined with additional material sources or additional compartments, receptacles, or with a spaced jacket (forming part of a second dispenser or having a non- dispensing use).
205, where there is a nongravity feed to a trap chamber which does not have a discharge assistant.
252+, where there is a supply having a discharge assistant which delivers to a trap chamber or casing having a discharge assistant associated therewith. 335, for devices in which the supply of material to be dispensed must be under pressure (by means not claimed) and which operate a discharge assistant which may be associated with a trap chamber.
344+, and see the notes thereto for movable trap chambers.
372+, where there is a source having no discharge assistant which delivers to a casing housing a discharge assistant.
SEE OR SEARCH CLASS
137, Fluid Handling,
156+, for gas pressure discharge of feed traps to boilers, etc., subclasses 171+ for fluid separating traps in diverse fluid containing pressure systems; subclasses 571+ for plural tanks or compartments, including traps, in series flow relation; subclass 596 for stop and waste systems.
