Method and apparatus for checking a screw closure torque without contact
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United States of America Patent
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Feb 14, 2017
Grant Date -
Jan 8, 2015
app pub date -
Feb 25, 2013
filing date -
Feb 27, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
The torque which is required to open a plastic screw closure which is screwed onto a bottle is determined without contact by the rotation position of the screwed-on plastic screw closure in relation to the bottle being established. The rotation position is established by evaluating an image on the basis of a mark on the bottle and a mark on the screw closure. Ventilation slots which interrupt the turns of the screw thread on the bottle neck can be used as the mark on the bottle, and a predetermined breaking point on a securing ring of the screw closure can be used as the mark on the screw closure.
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