SLAVE WHEEL COUNTER MECHANISM USEABLE WITH AN INHALER

A counter mechanism useable with a dry powder inhaler is disclosed. The mechanism features first and second indicator members rotatable about a central axis. The indicator members have counting indicia visible to indicate inhaler doses remaining or dispensed. A coupling transmits rotary motion from...

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Bibliographische Detailangaben
Hauptverfasser:	WELLS SIMON PAUL, LACY GRAHAM KEITH, SWAN JULIAN FRANCIS R, YOUNG DUNCAN GRANT, LEDGEWAY ANDREW J, MINSHULL STEPHEN JOHN
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING COUNTING MECHANISMS COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR 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 HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE PHYSICS
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Beschreibung
Zusammenfassung:	A counter mechanism useable with a dry powder inhaler is disclosed. The mechanism features first and second indicator members rotatable about a central axis. The indicator members have counting indicia visible to indicate inhaler doses remaining or dispensed. A coupling transmits rotary motion from the inhaler to the second indicator member when the inhaler is charged with a dose. A slave wheel, rotatable about an axis offset from the central axis, has a drive transfer wheel on one face and a gear on an opposite face. The gear engages the second indicator member, the drive transfer wheel intermittently engages and rotates the first indicator member in response to rotary motion of the second indicator member.