| 摘要 |
A child-resistant closure system for a pump sprayer includes a protective cap, a dispensing tip having a pair of finger-depressing shoulders, and a cylindrical portion beneath the shoulders, the cylindrical portion including a pair of buttons spaced 180° apart thereon, each button having an undercut formed on a back face thereof. A cylindrical base has its upper end secured to the dispensing tip and its lower end configured to be secured to a dispenser bottle, the dispensing tip and base housing a sprayer pump unit within that is actuated via the shoulders, the base top end including a circular thread formed there around on an external surface thereof. In a locked condition of the dispensing tip, the undercuts engage an underside of the circular thread on the base. Pressing the buttons simultaneously disengages the undercuts from the thread to unlock the dispensing tip and permit sprayer pump unit actuation. |
| 主权项 |
1. A child-resistant closure system for a pump sprayer, comprising:
a protective cap, a dispensing tip configured to receive the cap thereon, a lower end of the dispensing tip including a pair of finger-depressing shoulders in opposite relation to one another, each shoulder extending horizontally outward from the dispensing tip, with a cylindrical portion provided beneath the shoulders to serve as a bottom end of the dispensing tip, the cylindrical portion including a pair of buttons spaced 180° apart on a vertical facing of the cylindrical portion, the buttons adapted to control whether the dispensing tip is in a locked or unlocked condition so as to permit actuation, via the shoulders, of a sprayer pump unit that is partially contained within the dispensing tip, each button including an undercut formed on a back face thereof within the interior of the dispensing tip, a cylindrical base having its upper end secured to the dispensing tip and its lower end configured to be secured to a dispenser bottle which contains fluid, the dispensing tip and base housing the sprayer pump unit therein which is actuated by depressing the shoulders on the dispensing tip once the dispensing tip is in an unlocked condition, the base top end including a circular thread formed around its circumference on an external surface thereof, wherein, in a locked condition of the dispensing tip, the undercuts on the back faces of the buttons engage an underside of the circular thread on the base to prohibit actuation of the sprayer pump unit and to lock the dispensing tip, and wherein, to achieve an unlocked condition of the dispensing tip to permit actuation of the sprayer pump unit via depressing the shoulders, the buttons are pressed simultaneously to deflect the undercuts outward and away from the circular thread on the base, permitting the dispensing tip to move upward to a home dispensing position under a force applied to the dispensing tip from a spring in the sprayer pump unit. |
