Dispenser with collapsible dispensing tube

Details Dispenser with collapsible dispensing tube Dispenser with collapsible dispensing tube

2011-01-25

2011-01-25

Bomberg, Kenneth (Department: 3754)

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

C222S321700, C222S321900, C222S181300, C222S383300

Reexamination Certificate

active

07874463

ABSTRACT:
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.

REFERENCES:
patent: 4978036 (1990-12-01), Burd
patent: 6053370 (2000-04-01), Ludbrook et al.
patent: 6089410 (2000-07-01), Ponton
patent: 6543653 (2003-04-01), Lamboux
patent: 7377408 (2008-05-01), Kasting et al.
patent: 7556179 (2009-07-01), Yang et al.
patent: 2007/0157991 (2007-07-01), Robertson
patent: 2007/0251953 (2007-11-01), Criswell et al.

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