Automatic sash lock with rotary latch
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United States of America Patent
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Dec 18, 2012
Grant Date -
Aug 19, 2010
app pub date -
Feb 16, 2010
filing date -
Feb 19, 2009
priority date (Note) -
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Abstract
A latch for a window sash is disclosed. The latch includes a cover with a handle, a chassis, a bolt biased towards an extended position and containing a notch, a plunger biased towards the extended position and containing a guide, a rotary latch, pivotally connected to the chassis, containing a guide slot for receiving the guide and a protrusion biased towards the notch. The latch is operated wherein the bolt is locked in a retracted position when the handle slides the bolt inwardly towards the chassis and the protrusion engages the notch as the rotary latch rotates towards the notch, and wherein the bolt is released to the extended position when the plunger slides inwardly towards the chassis and the protrusion disengages from the notch as the rotary latch rotates away from the notch.
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