Foam dispenser

A foam dispensing mechanism (100; 600) comprises: a top (113); a cylindrical wall (112; 612) extending from a peripheral edge of the top; a piston member (170) arranged within the cylindrical wall; a dispense head (120) axially displaceable with respect to the top; a resilient bias member (130) for...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Brouwer Markus Franciscus
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS BOTTLES, JARS OR SIMILAR CONTAINERS COFFEE MILLS DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISEPROVIDED FOR DOMESTIC ARTICLES OR APPLIANCES FURNITURE HUMAN NECESSITIES LIQUID HANDLING NOZZLES OPENING, CLOSING PERFORMING OPERATIONS SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR SPICE MILLS SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL SUCTION CLEANERS IN GENERAL TOILET ACCESSORIES TRANSPORTING
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Beschreibung
Zusammenfassung:	A foam dispensing mechanism (100; 600) comprises: a top (113); a cylindrical wall (112; 612) extending from a peripheral edge of the top; a piston member (170) arranged within the cylindrical wall; a dispense head (120) axially displaceable with respect to the top; a resilient bias member (130) for biasing the dispense head. The piston member has a first opening (176) and a coupling cylinder (178) arranged coaxially around said first opening. The dispense head has a cylindrical seal member (150) positionally fixed with respect to the dispense head (120), the seal member (150) having a first passage opening (156) with a valve seat (151), wherein the seal member's lower portion (157) is sealingly and axially slidably coupled to the coupling cylinder. An axially displaceable valve member (190) for blocking or releasing said first passage opening has a valve stem (192) having its end (193) coupled to the piston member.