Patent ID: 7293926

Claim:
A device for packaging and dispensing a substance comprising: a drive mechanism having a first part having an axis and a second part, said second part capable of rotating around said axis relative to said first part to dispense said substance, one of said first and second parts having an element which is axially stationary along said axis relative to the other of said first or second parts; a base part in which at least part of said second part is received; an anti-rotation element secured to said second part, wherein said anti-rotation element cooperates with said base part so as to enable said drive mechanism to move axially along said axis relative to said base part while enabling said second part to be substantially stationary in rotation relative to said base part; and an independent elastically deformable member not integral with the said second part configured for exerting an upward restoring force against said drive mechanism as said second part is moved downward relative to said base part.