초록 ▼

A non-venting fluid dispenser system, for example being a collapsible flaccid bag loosely suspended in a sleeve and exposed to atmospheric pressure. A non-venting aspirator and a pressure actuated valve are mounted on the sleeve and close the bag. Operation of the aspirator promotes a low pressure o

A non-venting fluid dispenser system, for example being a collapsible flaccid bag loosely suspended in a sleeve and exposed to atmospheric pressure. A non-venting aspirator and a pressure actuated valve are mounted on the sleeve and close the bag. Operation of the aspirator promotes a low pressure on the outward side of the valve and atmospheric pressure acting against the bag drives fluid product through the valve and into the aspirator for dispensing, whereby the bag progressively collapses as fluid is expelled. The pressure actuated valve blocks against back flow entry of air into the bag.

대표청구항 ▼

A portable non-venting pump fluid dispenser system for isolated containment and dispensing of fluid product, which comprises: a collapsible bag, for containment of said fluid, having an open upper end and a closed distal end; a finger operated non-venting pump, having an inlet check valve which clos

A portable non-venting pump fluid dispenser system for isolated containment and dispensing of fluid product, which comprises: a collapsible bag, for containment of said fluid, having an open upper end and a closed distal end; a finger operated non-venting pump, having an inlet check valve which closes against back flow of fluid product, which facilitates said dispensing and closes said dispenser system; and a valve means which blocks back flow of air into said bag being disposed between said check valve and interior of said bag.