LIQUID DISPENSER VALVE

摘要

A fluid dispenser having a fluid storage container and a plunger carried in the container, with the plunger being manually pushable inward for dispensing fluid from the container. The container includes a valve cylinder mounted in the container and having an inner opening and an interior passage for slidingly receiving the plunger, with the plunger having a fluid flow passage therein providing a flow path from the cylinder interior to the exterior of the dispenser. A one-way capsule valve is positioned for control of the fluid flow into the cylinder interior and another one-way valve is disposed for control of the fluid flow from the cylinder interior into the plunger passage. The capsule valve comprises a disk assembly of a relatively rigid washer with a central opening, and a relatively flexible resilient seal having an annular rim enclosing the washer and a central flapper joined to the rim and overlying the washer central opening.