Patent ID: 7766188

Claim:
A dose-indicator device for using with a dispenser device for dispensing fluid or powder, in particular a pharmaceutical, so as to indicate the number of doses that have been emitted or that remain to be emitted from the dispenser device, the indicator device being characterized in that it comprises a first rotary disk ( 10 ) and a second rotary disk ( 20 ), said first disk ( 10 ) including indicator numbers and/or symbols ( 11 ) that are disposed in peripheral manner about an axis of rotation (X) of said first rotary disk ( 10 ) around at least two concentric circles, and said second disk ( 20 ) including a plurality of viewing windows ( 21 ); wherein the plurality of viewing windows ( 21 ) are disposed in a peripheral manner about an axis of rotation (Y) of said second rotary disk ( 20 ) around at least two concentric circles; wherein the number of concentric circles of indicator numbers and/or symbols ( 11 ) on the first rotary disk ( 10 ) is identical to the number of concentric circles of viewing windows ( 21 ) on the second rotary disk ( 20 ).