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United States of America Patent
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-
Dec 22, 2009
Grant Date -
Aug 9, 2007
app pub date -
Apr 5, 2007
filing date -
Aug 19, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A collision detection sensor for a waterjet system provides a signal in the event the device approaches to within a selected distance of an obstruction in the plane of the working surface. An annular pressure switch lying in a first plane provides the signal when radial pressure is applied to a perimeter of the pressure switch via an annular trigger skirt, the trigger skirt applying the radial pressure in response to a collision of the device with an obstacle.
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