GB2206099A — A metering valve for a liquid charged with a propellent liquid of liquified gas and usable in the upsidedown position
Assigned to Aptar France SAS · Expires 1988-12-29 · 37y expired
What this patent protects
When the valve is turned upsidedown, the metering chamber (16) is filled with liquid via a gap (2a) between a gasket (2) and the valve rod (9). In order to fill the chamber as quickly as possible, the gas leaving the chamber must be prevented from opposing the inward flow of liqu…
USPTO Abstract
When the valve is turned upsidedown, the metering chamber (16) is filled with liquid via a gap (2a) between a gasket (2) and the valve rod (9). In order to fill the chamber as quickly as possible, the gas leaving the chamber must be prevented from opposing the inward flow of liquid. To do this, the gas is evacuated via a central channel (21) in the valve rod; as liquid passes down via opening (8) and around a thinner portion (14) of valve rod (9,) via annular gap (2a), gas exits via radial passages (21b), passage (21) and opening (21a) to escape via orifice (1b). <IMAGE>
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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