초록 ▼

By achieving an extruded, foamed core formed from plastic material peripherally surrounded and integrally bonded with a cooperating synthetic, plastic, extruded, outer layer, a unique, multi-component, multi-layer synthetic closure is provided which may be employed as a bottle closure or stopper for

By achieving an extruded, foamed core formed from plastic material peripherally surrounded and integrally bonded with a cooperating synthetic, plastic, extruded, outer layer, a unique, multi-component, multi-layer synthetic closure is provided which may be employed as a bottle closure or stopper for any desired product, whether the product is a liquid, a viscous material, or a solid distributed in a bottle or container and dispensed through the open portal of the container neck. The present invention achieves a mass producible, resilient, synthetic bottle closure which is employable for any desired bottle, including wine. By employing the present invention, a multi-component or multi-layer synthetic closure is attained which possesses physical properties substantially equal to or better than the physical properties found in cork material, which has caused such cork material to be the principal closure material for wine bottles.

대표청구항 ▼

[ Having described our invention, what we claim is new and desire to secure by Letters Patent is:] [1.] A stopper or closure for a fluid product retaining container constructed for being inserted and securely retained in a portal forming neck of the container, said stopper/closure comprising:A. an e

[ Having described our invention, what we claim is new and desire to secure by Letters Patent is:] [1.] A stopper or closure for a fluid product retaining container constructed for being inserted and securely retained in a portal forming neck of the container, said stopper/closure comprising:A. an elongated, solid cylindrically shaped member dimensioned for insertion in the portal of the neck of the fluid product retaining container for closing and sealing the fluid product in the container;B. comprising at least two components concentrically mounted to each other and integrally bonded together in a manner which prevents passage of the fluid therebetween;C. said first component comprising an elongated, solid, cylindrically shaped core member formed from extruded foamed plastic material comprising a density ranging between about 100 kg/m.sup.3 to 500 kg/m.sup.3 and constructed for sealing the fluid product retained in the container and preventing transfer of the fluid product from the container prior to removal; andD. said second componenta. peripherally surrounding the cylindrical surface of the first component,b. comprising foamed plastic material formed by extrusion in peripheral surrounding, intimate, bonded engagement with the cylindrical surface of the first component and comprising a density ranging between about 300 kg/m.sup.3 and 1,500 kg/m.sup.3, andc. having an exposed surface constructed for frictionally engaging a surface of the portal formed in the neck of the container and being securely engaged therewith until forcibly removed therefrom, sealing the fluid product in the container and resisting all forces generated by the fluid product when retained in said container;whereby a multi-layer/multi-component synthetic closure is attained which is capable of completely sealing any desired fluid product in a container, retaining the product in the container for any desired length of time without any degradation of the fluid product or degradation of the closure.