| 摘要 |
A one-time use, disposable, plastic-molded locking clip is provided for retaining the depressible plunger of a dispensing pump in a fully extended position during shipment or otherwise. The clip may be snapped onto the plunger after the latter has been fully assembled, yet once installed, the snapped together portions of the clip are not readily detectable nor accessible so that the clip may not be removed without destroying the same by tearing a twist tab therefrom. The generally C-shaped jaws of the clip embrace the plunger immediately below the head thereof in order to block depression, and such jaws forceably interlock with each other into a complete loop so that the clip may be installed upon pumps devoid of structure which would assist in locking the clip in place. Mating hooks of the interlocking components on the jaws are so oriented that the resistive force from the plunger tending to spread apart the embracing jaws of the clip simply tends to tighten the interengagement of the hooks as the jaws pull against each other at their outer ends. |
