Chipper feed mechanism and throat opening sensor for use therewith
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United States of America Patent
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Jan 25, 2011
Grant Date -
May 17, 2007
app pub date -
Nov 16, 2005
filing date -
Sep 26, 2005
priority date (Note) -
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Abstract
A wood chipper includes a cutting assembly and a feed wheel for feeding material through an adjustable throat opening adjacent the feed wheel and toward the cutting assembly. A throat sensor measures the size of the throat opening and an electronic control unit (ECU) controls operation of the wood chipper in accordance with the size of the throat opening. The ECU controls forward, reverse and non-rotation of the feed wheel as well as down pressure applied by the feed wheel on feed material moving through the throat opening. The feed wheel down pressure may be constant or vary in any number of ways. One option includes applying down pressure in a pulsating manner.
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