Indicator for a powder or fluid dispenser device

1. An indicator for a powder or fluid dispenser device, the indicator including an indicator system and being characterized in that said indicator system comprises:

a cover ( 1 ) provided with a viewing window ( 60 );

a first indicator element ( 2 ) that turns about an axis, said first indicator element ( 2 ) including first indicator means ( 120 , 121 , 125 );

a second indicator element ( 5 ) that turns about an axis, said second indicator element ( 5 ) including second indicator means ( 50 ); and

an interconnection element ( 3 ) that interconnects said first and second indicator elements ( 2 , 5 ), in such a manner that it is the indicator means ( 120 , 121 ; 50 ) of only one of said two indicator elements ( 2 , 5 ) that is visible initially in said viewing window ( 60 ) up to a predetermined number of actuations, after which it is the indicator means ( 50 ; 120 , 121 ) of the other of said two indicator elements ( 2 , 5 ) that becomes visible in the viewing window.

2. An indicator according to claim 1 , in which said interconnection element ( 3 ) is displaceable, in particular in translation, between said first and second indicator elements ( 2 , 5 ).

3. An indicator according to claim 1 , in which said first and second indicator elements ( 2 , 5 ) are rotary disks, said interconnection element ( 3 ) being a thin plate that is received in guide means ( 149 ) for providing guidance in translation.

4. An indicator according to claim 3 , in which said guide means ( 149 ) are formed by a guide disk ( 4 ) that is interposed between said first and second indicator elements ( 2 , 5 ).

5. An indicator according to claim 3 , in which said guide means are formed by the cover ( 1 ).

6. An indicator according to claim 1 , in which said interconnection element ( 3 ) includes at least one first projection ( 130 ) that co-operates with the first indicator element ( 2 ), and at least one second projection ( 131 ) that co-operates with the second indicator element ( 5 ).

7. An indicator according to claim 6 , in which said first projection ( 130 ) co-operates with a slot, a groove, or a rail ( 126 ) that is provided in the first indicator element ( 2 ), and said second projection ( 131 ) co-operates with a guide slot, a guide groove, or a guide rail ( 158 ) that is provided in the second indicator element ( 5 ).

8. An indicator according to claim 7 , in which said guide groove ( 158 ) of the second indicator element ( 5 ) comprises a first portion that extends in approximately spiral manner from the center, and a second portion that extends in approximately circular manner at the periphery of said second indicator element ( 5 ), turning said indicator element ( 5 ) causing said interconnection element ( 3 ) to be displaced in translation until said second projection ( 131 ) co-operates with said circular second portion of the guide groove ( 158 ).

9. An indicator according to claim 8 , in which any displacement of the interconnection element ( 3 ) causes the first indicator element ( 2 ) to turn.

10. An indicator according to claim 1 , in which, in the turning direction of said first indicator element ( 2 ), said first indicator element ( 2 ) includes first indicator means ( 120 , 121 ), followed by a window ( 125 ).

11. An indicator according to claim 10 , in which said first indicator means ( 120 , 121 ) of the first indicator element ( 2 ) are visible initially in the viewing window ( 60 ) of the cover ( 1 ) until said first indicator element ( 2 ) has turned sufficiently for its window ( 125 ) to be in register with the viewing window ( 60 ) of the cover ( 1 ), thereby making it possible to view the second indicator means ( 50 ) of the second indicator element ( 5 ) through said windows ( 125 , 60 ).

12. An indicator according to claim 1 , in which said second indicator element ( 5 ) includes second indicator means ( 50 ), in particular numbers and/or symbols.

13. An indicator according to claim 12 , in which said second indicator means ( 50 ) are disposed around the periphery of said second indicator element ( 5 ).

14. An indicator according to claim 1 , in which said cover ( 1 ) and said first indicator element ( 2 ) are mounted on a central axial pin ( 157 ) of the second indicator element ( 5 ), said interconnection element ( 3 ) including a longitudinal opening ( 136 ) through which said pin ( 157 ) passes.

15. An indicator according to claim 1 , in which said indicator further includes actuator means that are adapted to cause said second indicator element ( 5 ) to turn at each actuation.

16. A powder or fluid dispenser device comprising a reservoir ( 10 ), and a dispenser member ( 100 ) assembled on said reservoir ( 10 ), the device being characterized in that it includes an indicator according to claim 1 .

17. A device according to claim 16 , in which said indicator is fastened on the bottom wall of the reservoir ( 10 ) remote from said dispenser member ( 100 ).

18. A device according to claim 16 , in which said indicator is disposed on the side of said reservoir ( 10 ).

19. A device according to claim 16 , wherein the dispenser member is a pump or a valve.