EP1375386A1 — Dispensing apparatus with metering chamber and aerosol type dispenser therewith
Assigned to Mitani Valve Co Ltd · Expires 2004-01-02 · 22y expired
What this patent protects
A dispensing apparatus and an aerosol type dispenser therewith for discharging contents stored in a metering chamber effectively. The dispensing apparatus is comprised of a cylindrical portion (11a) for providing a circular recess portion (11f) which keeps a part of the contents …
USPTO Abstract
A dispensing apparatus and an aerosol type dispenser therewith for discharging contents stored in a metering chamber effectively. The dispensing apparatus is comprised of a cylindrical portion (11a) for providing a circular recess portion (11f) which keeps a part of the contents in the metering chamber and a cylindrical skirt (21c) for providing a detour in the circular recess portion. The cylindrical portion and/or the cylindrical skirt form grooves (11g) so as to make a sectional area for flowing contents smaller. In mode in use, the upstream contents positioned inside the cylindrical skirt take a long way around the circular recess portion at high speed and high pressure, therewith contents settled in the circular recess portion are forced to the passage of the valve stem.
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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