Rodless dispenser
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United States of America Patent
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Feb 19, 2013
Grant Date -
Jul 14, 2011
app pub date -
Jan 8, 2010
filing date -
Jan 8, 2010
priority date (Note) -
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Abstract
A push chain is used to drive a piston into a canister of extrudable material. The push chain is stored in an elongated chain magazine, withdrawn from the magazine and into the canister by actuation of a trigger connected to a sprocket for the chain. The push chain obviates the need for an elongated piston rod used in conventional extrudable material dispensers.
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