Valve assembly for pressurized fluid containers
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United States of America Patent
Stats
-
Nov 16, 2004
Grant Date -
Apr 17, 2003
app pub date -
Sep 27, 2002
filing date -
Oct 5, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A valve assembly for fluid container under pressure, comprising a valve cup sealingly attachable to an opening of the container, the valve cup having an opening, a valve body of plastic material attached within the cup opening and having a through going axial passage and a sealing surface, a valve piston of plastic material guided within the passage, co-acting with the sealing surface and having a lower portion, spring means co-acting with a valve body which presses the valve piston against the sealing surface, characterized in that a cap is connected to the valve body designed to allow flow or fluid from the exterior of the cap to the interior thereof, a preferably axial projection being formed to the bottom facing upwardly towards the valve body, the bottom projection telescopically co-acting with the lower portion of the valve piston, the lower portion and/or the bottom projection having a spring portion adapted to generate a spring force by which the piston is pressed against the sealing surface.
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