Patent ID: 6460537
Filing Date: 2002-10-08
Classification: A61M

Abstract:
A dispenser for dispensing a product from a pressurised product container comprising a housing defining a user port and adapted to have a pressurised product container mounted therein, the pressurised product container having a dispensing valve movable relative to the container between an open and a closed position; the housing further comprising:a rolling member comprising a vane connected to the rolling member, and an associated rolling surface in contact with the rolling member, the rolling member being capable of rotation in contact with the rolling surface such that the rolling member translates in the opposite direction relative to the rolling surface in response to inhalation through the user port, the rolling member being rotatable between a locking position in which the rolling member directly or indirectly engages the pressurised product container or valve to maintain the valve in the closed position, and a released position in which the valve and the pressurised product container move relative to each other so that the valve moves to the open position to dispense product from the container and towards the user.