Maryland's Defense Patent Database

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Micro atomizer

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CCDC CBC

A micro atomizer to produce stable aerosol concentrations having an aerosol mass median aerodynamic diameter (MMAD) of less than 10 microns with liquid flow rates in the microliter per minute range is provided. The micro atomizer includes a liquid channel in the shape of a thick-wall tube and a cap having an aerosol outlet orifice whereby a liquid-gas contact space is formed by the internal surface of the cap and the substantially flat end of the liquid channel. Pressurized carrier gas and the liquid to be aerosolized are allowed to come into contact within a precisely formed liquid-gas contact space. The desired aerosol characteristics are accurately established, stable, and reproducible. In an exemplary embodiment, the micro atomizer is used with a syringe and syringe drive to provide a continuous liquid source for aerosol generation.

Inventors: 
Horsmon, Michael S.; Crouse, Charles L.; Kreis, Richard J.
Patent Number: 
Technical domain: 
Chemical engineering
FIle Date: 
2012-07-25
Grant Date: 
2014-11-11
Grant time: 
839 days
Grant time percentile rank: 
15
Claim count percentile rank: 
3
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
UNITED STATES OF AMERICA