Safety Gate and Extension, Retraction, and Lock Mechanism
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United States of America Patent
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app pub date -
Aug 7, 2013
filing date -
Aug 7, 2013
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Abandoned
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Abstract
Provided is a retractable safety gate and locking mechanism for a retractable safety gate that employs a spline lock and spline geometry for extending and locking the gate in an immovable position, and an air check valve and compression spring as a time delay for retracting the gate.
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