Closure cap construction

B - Operations – Transporting – 65 – D

Patent

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210/28, 210/45

B65D 47/28 (2006.01) B65D 47/24 (2006.01)

Patent

CA 1259282

CLOSURE CAP CONSTRUCTION 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 clo- sure 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 ex- terior sealing surface. The closure cap is axially slid- able on the neck portion between a closed sealing posi- tion and an open, product-discharging position. The bore of the neck portion contains multiple product-flow dis- charge passages which enlarge the effective cross-sec- tional area of the bore so as to increase its flow-han- dling 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 re- lieved 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 prod- uct 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 pas- sages. The advantage is that there is decreased resist- ance to product flow without sacrificing wall stiffness or jeopardizing the ability to readily mold the parts out of the desired plastic substance.

501804

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