Importance

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Abstract

A reuseable gasketless spout adaptable to conversion to a pump dispenser for fluid contained in a pouch made of inextensible film, comprises a spout-tube and a plunger with a conical tip, the plunger movable coaxially within the spout-tube. The spout is inserted into the pouch, its plunger first puncturing the pouch film, and the edges of the opening produced surround and form a gasketless seal with the outside wall of the spout-tube when the spout is fully inserted. The spout, after full insertion into the pouch, may be converted into a pump dispenser for fluid in the pouch by removing the plunger and replacing it with a pump which has a supply-tube extending coaxially through the spout-tube, into the fluid within the pouch. The dispenser, having the spout-tube in common with the spout is, like the spout, reuseable.

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First Claim