Multi-dose liquid dispensing assembly
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Accused Products
Abstract
A dispensing assembly to be coupled to a resilient-walled vessel includes a tip defining an unobstructed bore positioned to be in direct communication with the vessel when coupled to the vessel. The tip includes a valve structured to allow drop-wise liquid dispensing when sufficient pressure is applied to the resilient wall of the vessel, and to prevent liquid back flow at zero as well as near zero pressure differentials across the valve. The assembly also includes at least one vent opening structured to allow air into and out of the vessel, and at least one filtration element extending across the vent opening. A cap having an antibacterial liner is also provided. The combination of the filtration element, the antibacterial liner in the cap, and the ability of the valve to prevent back flow enables the solution in the vessel to remain sterile, with no need for preservatives.
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Citations
124 Claims
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1-105. -105. (canceled)
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106. A dispensing assembly to be coupled to a resilient-walled vessel containing a liquid, comprising:
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a neck portion including a sidewall structured to engage the interior of a neck of a resilient walled-vessel;
a tip distally extending from the neck portion and defining a bore positioned to be in direct communication with the vessel when coupled to the vessel to provide a substantially linear fluid flow path from the vessel to the tip, the tip including a distal end; and
a valve provided at the distal end of the tip, the valve extending substantially coaxially with the bore;
wherein the valve is structured to allow drop-wise liquid dispensing from the vessel when the assembly is coupled to the vessel and sufficient manual pressure is applied to the resilient wall of the vessel, and to prevent liquid back flow at zero as well as near zero pressure differentials across the valve. - View Dependent Claims (107, 108, 109, 110, 111, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124)
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112. The dispensing assembly of claim ill, wherein the plurality of mutually facing surfaces are structured to exert sufficient force on one another to prevent particles larger than 0.22 microns in diameter from passing through the at least one slit when the valve is closed.
Specification