Multicomponent cartridge
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United States of America Patent
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Sep 14, 2010
Grant Date -
Oct 29, 2009
app pub date -
Apr 11, 2006
filing date -
Apr 16, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The inventive multicomponent cartridge (1) for separately storing and for jointly pressing out at least two components of a free-flowing substance comprises at least one cylinder (2) for holding the substance with at least one pressing plunger (4) for pressing out the substance and at least one outlet (5) for the substance. The components of the substance are stored in separate chambers (8, 9) inside the cylinder (2) that extend in the longitudinal direction of the cylinder (2). An inner area (12) of a film (7) forms a partition (13) of the cylinder (2) between the chambers (8, 9) of the multicomponent cartridge (1). An outer area (11) of the film (7) is integrally joined to the cylinder. According to the inventive method for producing the inventive multicomponent cartridge (1), the outer area (11) of the film (7) is encapsulated during the injection molding of the cylinder (2) for the multicomponent cartridge (1).
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