Volumetric doser for batching liquid or pasty pharmaceutical substances
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United States of America Patent
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Aug 20, 2013
Grant Date -
Dec 15, 2011
app pub date -
Jun 9, 2011
filing date -
Jun 14, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A volumetric doser (10) for batching liquid or pasty pharmaceutical substances is disclosed which comprises: a cylinder (1); a piston (2), mobile along internal walls (49) of the cylinder (1) for displacing liquid or pasty pharmaceutical substances; a stem (3) exiting from the cylinder (1) for moving the piston (2); and a coupling member (9) to which the stem (3) is fixable. The coupling member (9) has a substantially U-shaped form and comprises: a base (11) and two facing lateral walls (12, 13) which originate from the base (11). The piston (2) and the coupling member (9) are reciprocally conformed such that the coupling member (9) can embrace a part (17) of the piston (2) and can perform limited oscillations with respect to the piston (2) axis.
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