Dispenser with collapsible dispensing tube
View Patent ↗A dispenser includes a housing and a push bar movable between a rest position and an actuated position. A container is retained in the housing and holds a liquid, and a pump is associated with a liquid. The pump is actuated to dispense a dose of the liquid, when the push bar is moved from its rest position to its actuated position. A dispensing tube includes an inlet associated with the pump, an outlet associated with the push bar, and a bellows portion between the inlet and the outlet. Upon moving the push bar from its rest position to its actuated position, the bellows portion is collapsed from an expanded volume to a compressed volume, and the outlet of the dispensing tube moves with the push bar. Upon return of the push bar from the actuated position to the rest position, the bellows portion expands from the compressed volume to the expanded volume, and draws liquid at the tip of the dispensing tube into the dispensing tube to reduce or eliminate dripping.
1. A dispenser comprising:
a housing;
a push bar movable between a rest position and an actuated position;
a container retained in said housing and holding a liquid;
a pump associated with said liquid in said container, said pump being actuated to dispense a dose of said liquid when said push bar is moved from said rest position to said actuated position;
a dispensing tube including:
an inlet associated with said pump,
an outlet, and
a bellows portion between said inlet and said outlet, wherein said dispensing tube is secured to said push bar such that, upon moving said push bar from said rest position to said actuated position, said bellows is collapsed from an expanded volume to a compressed volume and said outlet moves with said push bar.
2. The dispenser of claim 1 , wherein said push bar is pivotally mounted to said housing.
3. The dispenser of claim 1 , wherein the length of the dispensing tube is altered by a collapsing and expanding of said bellows portion.
4. The dispenser of claim 1 , wherein said pump is a reciprocating piston pump.
5. The dispenser of claim 1 , wherein said pump is a dome pump.