Flush lock for casement window and method of operating the same
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United States of America Patent
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Oct 3, 2017
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N/A
app pub date -
Jul 8, 2015
filing date -
Sep 11, 2012
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Abstract
A low profile actuating window lock for casement windows having a handle actuate a lifter that slides vertically on a fork component in slidable communication with the window lock casing, the handle pivotable about the lifter and pivotable about a restrictor arm that pivots relative to the casing, allowing the handle to rotate fully from the locked position to the unlocked position with low clearance from the window frame. The pivot points of the handle, lifter, restrictor arm configuration allow for an over center linkage that prevents back driving the casement window lock.
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