Rubber extruder and method of sampling extruded rubber
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United States of America Patent
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Oct 7, 2014
Grant Date -
Mar 15, 2012
app pub date -
Apr 30, 2010
filing date -
Apr 30, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
In a rubber extruder, a rubber sample is sampled while the rubber extruder is operating. In a rubber extruder formed of a cylinder and a screw arranged in the cylinder, a rubber sample taking-out path is provided in the vicinity of an outlet-side end portion of the screw and in front of a rubber taking-in port of a pair of gears of a gear pump. A path opening/closing means including a ball valve which opens/closes the rubber sample taking-out path is also provided so that a part of rubber extruded by the screw is taken out as a sample by opening/closing the ball valve at predetermined timing.
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