Two-component cartridge for free-flowing media
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United States of America Patent
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-
Oct 21, 2003
Grant Date -
N/A
app pub date -
Mar 6, 2002
filing date -
Sep 14, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The two-component cartridge comprises an outer container (10) and an inner container (20) coaxially arranged therein. The inner container (20) comprises a bellows-type section (21) adapted to be folded like an accordion. The rear end of the bellows-type section (21) is inserted into a piston (32). In the folded condition, the bellows-type section is accommodated in an annular space (41) of the piston (32). The piston (32) comprises an annular piston breast (34) and a central piston breast (37) arranged at the same level. The invention allows easy filling of the two-component cartridge from the rear side and almost complete evacuation. The two-component cartridge can be evacuated by means of the same tool as is used for a common cartridge containing only a single material.
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