Device for producing high pressure in a fluid in miniature

Fluid sprinkling – spraying – and diffusing – Including supply holder for material – Moving solid surface engages material to be sprayed

Reexamination Certificate

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C239S349000, C239S533150, C239S571000, C239S583000, C239S321000, C239S337000, C222S383100, C222S385000, C222S401000, C222S402100, C137S533170, C137S533230

Reexamination Certificate

active

07104470

ABSTRACT:
A miniaturized device for pressurizing fluid. The device includes a hollow piston that provides a fluid path and a valve member. The valve member is configured for axial movement so that the valve axis remains parallel to the piston axis. The valve member is arranged at one end of the hollow piston. The valve member may be partially or completely disposed within the hollow piston. The device is particularly adapted for use in a mechanically operated atomizer to produce an inhalable aerosol of a liquid medicament without the use of propellant gas.

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