Liquid dispensing device

A liquid dispensing device is disclosed in which there is a movable needle valve operable to open and close a valve seat located within the nozzle of the dispensing device. The needle valve is guided by a guide bushing contained within the nozzle bore. A very small radiused semi-spherical end surfac...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BOONE, JACOB J
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS NOZZLES PACKING PERFORMING OPERATIONS SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL STORING TRANSPORTING UNPACKING
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Beschreibung
Zusammenfassung:	A liquid dispensing device is disclosed in which there is a movable needle valve operable to open and close a valve seat located within the nozzle of the dispensing device. The needle valve is guided by a guide bushing contained within the nozzle bore. A very small radiused semi-spherical end surface on the nozzle has been found to eliminate stringing of viscous liquid materials dispensed from the nozzle, particularly when the end surface is combined with a needle valve which is maintained concentric with the nozzle orifice by the guide bushing contained within the nozzle bore.