Dispenser or vial pump and a tube and valve assembly used in such
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United States of America Patent
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Dec 13, 2011
Grant Date -
Apr 10, 2008
app pub date -
Aug 11, 2004
filing date -
Aug 11, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
Dispenser or vial pump, including a valve assembly (3) and a tube (4) that is fixed with one extremity to a nipple (6) of the valve assembly (3). The nipple (6) and tube (4) are in contact with each other with their respective contact surfaces (7, 8), at least one of the contact surfaces (7, 8) is provided with a roughness (9) in order to decrease the friction between the nipple (6) and the tube (4) during assembly.
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