Disposable dispensing apparatus including a frangible membrane

The apparatus comprises a housing (1) defining an outlet (7) and a shaft (32) having a storage chamber (33) therein for a product with a first inlet (34) and a first outlet (35). A sheathing means (4) is slidably mounted on the shaft and has a second inlet (42) and a second outlet closed by a frangi...

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Bibliographische Detailangaben
Hauptverfasser:	ANDREW DAVID WRIGHT, HILDE RACHEL MARIA POLLET, RICHARD IAEN HARRISON
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS BABY COMFORTERS CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICALPURPOSES DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR RECEIVING SPITTLE DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGINGPHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL ORADMINISTERING FORMS HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE NOZZLES PERFORMING OPERATIONS SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	The apparatus comprises a housing (1) defining an outlet (7) and a shaft (32) having a storage chamber (33) therein for a product with a first inlet (34) and a first outlet (35). A sheathing means (4) is slidably mounted on the shaft and has a second inlet (42) and a second outlet closed by a frangible membrane (44). A variable volume means (2) is operatively connected to the shaft. The shaft is movable, on operation of means (2) to reduce the variable volume to pressurise gas in an interior of means (2), from an initial storage position in which the inlets (34,42) are out of alignment so as to close a gas flow path, to a dispensing position in which they are brought into alignment by action of the housing against the sheathing means. At the same time, the membrane is ruptured by the shaft to open the gas flow path, such that pressurised gas from the interior of means (2) is discharged along the gas flow path comprising the first and second inlets (32,42), storage chamber (33), second outlet and first outlet (35), to entrain powdered product and dispense it through the housing outlet (7).