Patent ID: 8342362

Claim:
A dose counter ( 100 ) for counting the number of doses of fluid or powder that have been dispensed or that remain to be dispensed from a fluid dispenser device ( 200 ), said counter including a first rotary counter element ( 110 ) forming a units wheel, and a second rotary counter element ( 120 ) forming a tens wheel, said first and second counter elements ( 110 ; 120 ) co-operating with each other to define and to display, in a viewing window ( 151 ), said number of doses, said first counter element ( 110 ) co-operating with an actuator member ( 130 ) that is adapted to cause said first counter element ( 110 ) to turn each time said actuator member ( 130 ) is actuated, said counter including an intermediate rotary element ( 140 ) that is adapted to cause said second counter element ( 120 ) to turn on every tenth actuation of said actuator member ( 130 ), said first and second counter elements ( 110 ; 120 ) turn about a common first pivot pin ( 161 ), and said intermediate element ( 140 ) turns about a second pivot pin ( 162 ) that is offset and parallel to said first pivot pin ( 161 ), said counter being characterized in that said first counter element ( 110 ) includes: a first peripheral set of teeth ( 118 ), which set, on each actuation, co-operates with at least one actuator tab ( 131 , 132 ) of the actuator member ( 130 ); and a second peripheral set of teeth ( 111 ), which set, on each actuation, co-operates with said intermediate element ( 140 ), said second counter element ( 120 ) includes a third peripheral set of teeth ( 121 ), which set, on every tenth actuation of the actuator member ( 130 ), co-operates with said intermediate element ( 140 ).