Safety lock system for test head mount
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United States of America Patent
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Jun 28, 2005
Grant Date -
Feb 24, 2005
app pub date -
Sep 30, 2004
filing date -
Jan 13, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A safety lock system prevents unlocking of a balanced loaded unit when the loaded unit becomes unbalanced. A plurality of calipers applies pressure on opposite sides of a guide rail. A lock block couples the load to at least one of the calipers for movement of the load along the guide rail. A rotatable handle is coupled to the calipers through a shaft. Rotation of the handle locks or unlocks the lock block against vertical movement. A safety block is coupled to the loaded unit and is moveable with the loaded unit for preventing rotation of the handle upon a preselected movement of the loaded unit relative to the lock block.
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