Inhaler valve mechanism
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Oct 6, 2009
Grant Date -
Aug 11, 2005
app pub date -
Jul 18, 2003
filing date -
Jul 19, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A valve mechanism is provided for use in an inhaler comprising a pressurized container, and a metering chamber, and a valve mechanism wherein the inlet and outlet valves are separate and can be operated independently. The pressure of the fluid in the canister is used to aid the opening of the outer valve so reducing the force to fire a dose. A variant of the valve mechanism allows the user to select from a range of dose volumes by appropriate orientation of the stem.
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