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Tamper-evident plunger-hold-down attachment for pump dispenser

Image Number 3 for United States Patent #5975370.

The attachment comprises a cylinder-embracing support portion at least partly encircling the upper end of the pump cylinder and having openings therein receiving hooks on the cylinder. Unitary with the support portion is a plunger hold-down portion which engages the upper end of the actuator portion of the plunger. The attachment has a tamper-evident frangible zone located between the cylinder-embracing support portion and the engagement with the actuator portion.

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