FIELD: packaging industry.
SUBSTANCE: tank cover consists of a hole for filling and movable closing element represented with a yoke. The yoke is provided with lever 1 and 2 and installed on the tank cover so that it can be rotated around axis of rotation. Besides lever 1 has a closing plate being convex upwards. The lever 2 is provided with counterbalance. Besides torque moment of lever 2 is more than that ensured for lever 1.
EFFECT: invention provides for cover manufacturing which is easy and simple in handling and ensures easy filling and automatic closing after filling process.
21 cl, 10 dwg
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