Importance

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Abstract

A single stroke fluid dispense system, including a dispense member having a dispense end defining a dispense end opening and a container well communicating with the dispense end opening for receiving a fluid to be dispensed. A closure cap is supported over the dispense end opening of the dispense member and further defines a fluid passageway therethrough in fluid communication with the container well. A compression assembly for forcing the fluid through the fluid passageway of the closure cap is also provided. A sealing piston assembly maintains the closure cap in sealing engagement with the dispense member. The closure cap may further defined a burst port at one end of the fluid passageway facing the container well which is especially useful for dispensing fluid from a flexible rupturable container. The compression assembly maintains fluid integrity between the container and the closure cap about the rupture port throughout dispensement so as to thwart fluid from leaking into the container well. The container also seals the interface between the dispense member and the closure cap during dispensement of the fluid to be dispensed through the closure cap. The compression assembly further augments the sealing force between the dispense member and the closure cap by forcing the container against the internal dispense cylinder wall to further carry the dispense cylinder against the closure cap.

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First Claim