Patent ID: 8434476

Claim:
A dispenser for dispensing pulverulent substances, comprising: a dispenser housing having a mouthpiece; a circular blister pack having a center and being movably disposed in said dispenser housing, said blister pack having a plurality of domes disposed radially about said center and forming dome-shaped cavities on a base layer, said domes having mutually opposite lateral walls and being disposed for moving said dome-shaped cavities, by movement within said dispenser housing, into an emptying position; a needle movably disposed in said dispenser housing for opening said dome-shaped cavities in said emptying position for emptying by a suction air stream leading to said mouthpiece, said needle having elastically yielding spring arms formed thereon at an end thereof remote from a tip of said needle; said needle being disposed to pass crosswise through said dome in a direction from said center radially outwards for piercing punched holes into and passing through said opposite lateral walls of said dome and wherein, after retraction of said needle, said punched holes lie in a path of the suction air stream channel leading to the mouthpiece.