Importance

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Abstract

A compact, high-flow-rate closure cap construction for hand-held dispensers, comprising a cap body having an upstanding tubular discharge neck portion, and a closure cap having a bore receiving the neck portion. The neck portion has a cylindrical exterior sealing surface, and the bore has a sealing annulus engaged with the exterior sealing surface. The closure cap is axially slidable on the neck portion between a closed sealing position and an open, product-discharging position. The bore of the neck portion contains multiple product-flow discharge passages which enlarge the effective cross-sectional area of the bore so as to increase its flow-handling capacity, with a minimum of loss in its stiffness and rigidity. The cap has a discharge orifice that is normally closed off by a stopper peg carried by a bridge on the cap body. On the underside of the peg is a relieved area in the form of a slot, that increases the size of one of the openings constituting the discharge path, thereby facilitating an increased volume of product flow. In addition, the cap has an expansive inside wall surface along which the product flows. This surface in turn has a plurality of recesses or discharge passages, all to the end of providing decreased resistance to product flow without sacrificing wall stiffness or jeopardizing the ability to readily mold the parts out of the desired plastic substance.

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First Claim