Device for delivering a composition, the device including a membrane forming a check valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 2, 2013
Grant Date -
Aug 26, 2010
app pub date -
Feb 5, 2010
filing date -
Feb 6, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The device includes a membrane slidably mounted in a metering chamber, the membrane including a first sealing element forming a check valve, and a second sealing element enabling the membrane to slide in a leaktight manner relative to the metering chamber. The first and second sealing elements are made of a material that is relatively flexible, the membrane also including a rigid portion made of a material that is more rigid than the material of the first and second sealing elements.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully