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Details for Patent: 5,405,084

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Summary for Patent: 5,405,084

Title: Nozzle assembly for preventing back-flow
Abstract:A nozzle assembly which comprises a nozzle aperture for discharge of a fluid as a spray of droplets, and a conduit in fluid flow communication with the nozzle aperture. The flow of fluid through the conduit is restricted by the minimum effective cross-sectional area of the conduit transverse to the line of flow of fluid through the conduit so that back flow of fluid from the nozzle aperture through the conduit at ambient and operational pressure differentials is substantially prevented. The invention further provides for a method of discharging a fluid as a spray of droplets, and a spray generating device which includes the nozzle assembly of the present invention.
Inventor(s): Weston; Terence E. (Stradbroke, GB2), Dunne; Stephen T. (Ipswich, GB2)
Assignee: DMW (Technology) Limited (GB)
Application Number:08/070,306
Patent Claim Types:
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Device; Use;

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Foreign Priority and PCT Information for Patent: 5,405,084

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom9026298Dec 04, 1990
United Kingdom9109072Apr 26, 1991
PCT Information
PCT FiledDecember 04, 1991PCT Application Number:PCT/GB91/02147
PCT Publication Date:June 25, 1992PCT Publication Number: WO92/10306

International Patent Family for Patent: 5,405,084

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria134165<disabled in preview>
Australia8942391<disabled in preview>
Australia659618<disabled in preview>
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
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