Piston and piston rod for a rodless dispenser
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United States of America Patent
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Feb 26, 2013
Grant Date -
Jul 14, 2011
app pub date -
Feb 10, 2010
filing date -
Jan 8, 2010
priority date (Note) -
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Abstract
A piston and piston rod for a rodless dispenser for extrudable material are configured such that compressive force exerted on the piston from a push chain causes a reactive torque to be created that locks the links of the chain together. The push rod is located away from the piston's geometric center.
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