(under subclass 424.5) Dispensers having a trap chamber so connected to the main container that the organization must be tilted both to fill the trap and discharge material therefrom.
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425+, for such devices having valves or other cutoffs necessary to the trapping operation, and see the notes thereto.
457.5, for dispenser organizations having a U-shaped path for material to be discharged, but no enlargement or other arrangement forming a trap chamber, so that material is caused to traverse the path by shaking the container to and fro.
584, for a dispensing inkwell organization which must be tilted to fill the trap from the supply chamber and righted for access of a penpoint to the trap.
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221, Article Dispensing, 288, for article dispensers comprising tiltable container sources of supply having trap means associated therewith.