Aerosol dispenser with flow diverter

Details Aerosol dispenser with flow diverter Aerosol dispenser with flow diverter

1990-07-10

1991-09-17

Huppert, Michael S.

Dispensing

With discharge assistant

Fluid pressure

2224022, 12820023, A61M 1100

Patent

active

050487299

ABSTRACT:
An aerosol dispenser, for example an inhaler, consists of a container (12) containing a propellant and a medicament, with a valve (14), and an applicator (16). The applicator includes a frusto-conical diverter (20) with a small orifice (60) facing the valve orifice (37). Aerosol droplets predominantly pass through the small orifice, decelerate, and can then be inhaled, while the propellant gas is predominantly diverted out of the applicator.

REFERENCES:
patent: 3838686 (1974-10-01), Szelrely
patent: 4174712 (1979-11-01), Moren et al.
patent: 4819834 (1989-04-01), Thiel
patent: 4940051 (1990-07-01), Lankinen
"Design of a Multistage Virtual Impactor," V. J. Novick and J. L. Alvarez, Aerosol Science and Technology, 6:63-70 (1987), Elsevier Science Publishing Co., Inc.

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