Dispensing device, storage device and method for dispensing powder

A dispensing device, and a method for dispensing powder in which powder is dispensed through a duct with a flat cross section to de-agglomerate the powder and to generate a spray with fine particle size. A storage chamber for the powder may be closed by a bursting element which is burst by pressuriz...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DUNNE STEPHEN TERENCE, ROHRSCHNEIDER MARC, MOSER ACHIM
Format:	Patent
Sprache:	eng
Schlagworte:	DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY FIRE-FIGHTING HUMAN NECESSITIES HYGIENE LIFE-SAVING MEDICAL OR VETERINARY SCIENCE
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Beschreibung
Zusammenfassung:	A dispensing device, and a method for dispensing powder in which powder is dispensed through a duct with a flat cross section to de-agglomerate the powder and to generate a spray with fine particle size. A storage chamber for the powder may be closed by a bursting element which is burst by pressurized gas for discharging the powder, the gas pressure reaching or exceeding a peak value before the bursting element bursts so that the powder is dispensed at a lower gas pressure. The powder may be forced through the duct by a gas pressure of less than 300 kPa to de-agglomerate the powder and/or to generate the spray. The storage device can have multiple storage chambers and associated ducts or nozzles, so that each dose of powder can be dispensed through a separate duct or nozzle, the storage chamber and duct or nozzle being formed of a one-piece construction.