Switching valve control system
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United States of America Patent
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Feb 20, 2018
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app pub date -
May 2, 2016
filing date -
May 2, 2016
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Abstract
A switching valve module which is part of a switching valve control system for use with reciprocating slat-type conveyors is disclosed herein. Disclosed herein is a switching valve module that includes an inner control valve and an outer control valve. A spool is positioned within the inner control valve and a spool positioned within the outer control valve. Movement of each the spool creates both a spool-type seal and a poppet-type seal between the spool and the respective control valve.
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