Product Packaging and Dispensing Device Comprising a Sterile Filter Bottle Which is Equipped with a Nozzle
First Claim
1. A device for packaging and dispensing a product, said product generally being liquid, semi-fluid or in suspension, comprising a container designed to contain the product to be packaged and dispensed with the aid of an accessory, and an air renewal and filtration assembly for air entering the container after a portion or dose of product had been dispensed, the dispensing accessory being a nozzle with which the container is provided, the assembly composed of the container and nozzle having at least one flexible portion which, when pressure is applied to it, is capable of expelling product, and a valve with which the nozzle is provided to allow the product to pass out from the container when pressure is applied to said flexible portion of the assembled container and nozzle without allowing external air to enter said container when said flexible part is released, comprising an additional valve connected to said air renewal and filtration assembly, designed to prevent the escape of the product and air contained in the container through an air inlet passage of said assembly and to prevent any contact between the product and the filter when it is arranged between a filter belonging to this latter assembly and the internal volume of the container, and any escape of the product and air via an air inlet passage belonging to said assembly when it is arranged anywhere in the container and when pressure is applied to said flexible portion.
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Accused Products
Abstract
The invention relates to a device for packaging and dispensing a liquid, semi-fluid or suspended product, comprising a container which houses the product to be dispensed through a nozzle, as well as a unit for changing and filtering the air entering the container following the dispensing of the product. According to the invention, the assembly formed by the container and the nozzle with which said container is equipped comprises at least: one flexible part which, when actuated, causes the product to be discharged; and a first valve which is associated with the nozzle in older to enable the discharge of the product when the flexible part is actuated, but without allowing the ingress of external air when said flexible part is released. The air change and filtration unit is associated with a second valve which allows external air to enter the container when the flexible part is released, but without allowing the discharge of the product or the air housed in said container when the flexible part is actuated The invention is suitable for the packaging and dispensing of sterile products, such as opthamology drops
37 Citations
11 Claims
- 1. A device for packaging and dispensing a product, said product generally being liquid, semi-fluid or in suspension, comprising a container designed to contain the product to be packaged and dispensed with the aid of an accessory, and an air renewal and filtration assembly for air entering the container after a portion or dose of product had been dispensed, the dispensing accessory being a nozzle with which the container is provided, the assembly composed of the container and nozzle having at least one flexible portion which, when pressure is applied to it, is capable of expelling product, and a valve with which the nozzle is provided to allow the product to pass out from the container when pressure is applied to said flexible portion of the assembled container and nozzle without allowing external air to enter said container when said flexible part is released, comprising an additional valve connected to said air renewal and filtration assembly, designed to prevent the escape of the product and air contained in the container through an air inlet passage of said assembly and to prevent any contact between the product and the filter when it is arranged between a filter belonging to this latter assembly and the internal volume of the container, and any escape of the product and air via an air inlet passage belonging to said assembly when it is arranged anywhere in the container and when pressure is applied to said flexible portion.
Specification