Tamper evident lock for liquid pump dispenser

Details Tamper evident lock for liquid pump dispenser Tamper evident lock for liquid pump dispenser

B - Operations, Transporting

65

D

B65D 55/06 (2006.01) B05B 11/00 (2006.01) B65D 47/34 (2006.01)

Patent

CA 2143152

The reciprocable plunger of a pump dispenser is threaded into a lock down position, a removable tamper evident lock strip being provided for holding the plunger against locking rotation from its fully depressed locked position. The lock strip is arcuate and partially surrounds the plunger stem, has opposed, spaced apart free ends, and a laterally extending pull tab at one of such ends. The strip has at least one external tooth in engagement with at least one internal tooth provided on an inner surface of a collar of the pump, and the strip having an internal axial groove receiving an external axial rib provided on the plunger stem.

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