FLUID DISPENSING APPARATUS AND METHOD

A fluid dispenser including a body, a chamber coupled to or formed as part of the body and configured to contain a quantity of fluid, and a piston coupled to the body and rotatable within the chamber to different position. The piston is movable relative to the chamber in a first direction along an a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Hague, Barry, Crossdale, Garry W, Bertucci, Michael H, Swain, Andrew, Cooper, Martin, Thornhill, Guy
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILARCONTAINERS APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS BOTTLES, JARS OR SIMILAR CONTAINERS DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISEPROVIDED FOR LIQUID HANDLING MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL METERING BY VOLUME NOZZLES OPENING CLOSED CONTAINERS OPENING, CLOSING PERFORMING OPERATIONS PHYSICS SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	A fluid dispenser including a body, a chamber coupled to or formed as part of the body and configured to contain a quantity of fluid, and a piston coupled to the body and rotatable within the chamber to different position. The piston is movable relative to the chamber in a first direction along an axis to draw fluid into the chamber, and the piston is movable relative to the chamber in a second direction opposite the first direction to discharge fluid from the chamber. The piston has stroke lengths that are selectable via the different rotational positions of the piston and that are associated with metered quantities of fluid to be drawn into the chamber. An anti-reversal feature is disposed between the piston and the body. The anti-reversal feature inhibits reversal of the piston during movement of the piston in the first direction or the second direction.