Pump dispenser head with increased unlocking torque
A pump dispenser head has a lockdown feature to prevent unintended dispensing during shipment. Releasing the lock-down feature requires increased torque compared with typical dispensers, allowing the dispenser to be shipped with less packaging while still preventing leakage of the contents.
1. A dispenser assembly comprising:
a dispenser head comprising
a fluid inlet;
a fluid outlet;
a depending skirt; and
a locking rib on an inner surface of the depending skirt; and
a chaplet comprising
a top wall;
a skirt extending downward from the top wall; and
a locking ramp with a proximal end attached to the top wall, and a distal end extending above the top wall and free to flex with respect to the top wall;
wherein the dispenser head is rotatable relative to the chaplet between a lock-down position and an unlocked position; and
wherein placing the dispenser head in the lock-down position requires a first torque to rotate the dispenser head and move the locking rib past the locking ramp, and returning the dispenser header to an unlocked position requires a second torque, and the second torque is greater than the first torque.
2. The dispenser assembly of claim 1 , wherein a distal end of the locking ramp is separated from the chaplet top wall by at least one of a cut and a slot.
3. The dispenser assembly of claim 1 , wherein the distal end of the locking ramp is configured to flex downward into the top wall.
4. The dispenser assembly of claim 3 , wherein the ramp is configured to flex downward so that the ramp upper surface is level with the top wall.
5. The fluid dispenser of claim 1 , further comprising a pump engine connected to the fluid inlet.
6. The fluid dispenser of claim 1 , further comprising a container closure positioned beneath the chaplet.
7. The fluid dispenser of claim 6 , further comprising a fluid container connected to the container closure.
8. The fluid dispenser of claim 1 , further comprising at least one additional locking ramp.
9. The fluid dispenser of claim 8 , further comprising a pump engine connected to the fluid inlet.
10. The fluid dispenser of claim 8 , further comprising a container closure positioned beneath the chaplet.
11. The fluid dispenser of claim 10 , further comprising a fluid container connected to the container closure.