Apparatus for screwing a ring nut of a trigger pump on a container
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United States of America Patent
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Aug 18, 2015
Grant Date -
Nov 1, 2012
app pub date -
Dec 7, 2010
filing date -
Dec 11, 2009
priority date (Note) -
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Abstract
A method for screwing a ring nut of a trigger-shaped (5) pump or trigger (1) on a vessel (6), the pump or trigger being provided with a threaded fixing ring nut (2) by a gripping lever assembly (11). The method includes the steps of: screwing the ring nut on the threaded mouth of the vessel by screwing it to the body until the screwing torque does not reach a preset value; performing a first detachment of elements for tightening the ring nut; rotating the tightening elements (11), by an associated motor, relocating them in their starting configuration, by clearing the trigger by the presence of the levers (11) themselves; lastly, performing a further opening of the tightening elements from the ring nut (2); the driving being necessary for completely opening the gripper and clearing the trigger.
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