Patent ID: 8186343

Claim:
A dose indicator for indicating the number of doses that have been dispensed or that remain to be dispensed from a fluid dispenser device, the indicator comprising an indicator body, a drive element, a rotary transmission element, a first rotary counter element, and a second rotary counter element, said first and second rotary counter elements disposed side by side in a common plane and turning about parallel axes of rotation, said first and second counter elements co-operating to provide a common indication on each occasion the indicator is driven, said first rotary counter element is a disk having a top surface and a bottom surface, said top surface including first indicator means located close to the outer peripheral edge of said top surface, and said bottom surface including a first gear co-operating with a drive gear provided on said rotary transmission element, said first rotary counter element including a drive tooth adapted to co-operate on each complete revolution of said first rotary counter element with a second gear provided on said second rotary counter element; said drive element includes a portion that is stationary relative to the indicator body, and a deformable portion adapted to co-operate with an actuation portion of a fluid dispenser device, said actuation portion movable relative to said drive element over an actuation stroke; and said actuation portion of the fluid dispenser device that co-operates with the deformable portion of the drive element is a fluid reservoir, said body of the indicator being stationary relative to the body of the fluid dispenser device.