Dispensing – Plural sources – compartment – containers and/or spaced jacket – Cabinet-type dispenser for single mixed drinks
Patent
1995-02-02
1996-10-15
Kashnikow, Andres
Dispensing
Plural sources, compartment, containers and/or spaced jacket
Cabinet-type dispenser for single mixed drinks
206221, 215DIG8, B67D 556
Patent
active
055646000
DESCRIPTION:
BRIEF SUMMARY
1. Background of the Invention
The invention relates to a device for keeping at least two products separate from one another and for blending them at a desired instant, especially at the moment of use, of the type which includes: containers being assembled to be sealed relative to the exterior, whilst having the capability for relative displacement, one, it being possible for these sealing means to be opened in response to an appropriate relative displacement of the containers.
2. Description of the Related Art
FR-A-2,569,666 shows a device of this sort in which the sealing means comprise an inner seal intended to be torn upon relative displacement of two reservoirs, to bring them into communication. The inner seal, once torn, may hinder the good flow of the products and the blending. What is more, the inner seal is perforated by a relative axial displacement of the reservoirs which causes a decrease in the internal volume of the assembly of the blender. Now, such a device is often used for the purpose of mixing a colorant contained in one of the containers and an oxidizing agent contained in the other container in order to produce a hair dye; when blending is carried out, there is a slight release of gas and the decrease in the internal volume contributes to an increase in overpressure, which may cause the mixture to splash out when the device is opened to the exterior, for the purpose of dispensing this mixture.
The documents JP-U-3-72634 and JP-U-3-72678, published on Jul. 23, 1991, show a device of the sort defined previously in which the sealing means comprise a stopper situated inside the internal volume, and which is detached upon relative displacement of the two reservoirs. The axial displacement of the two containers, allowing the sealing means to be opened, gives rise to an increase in the internal volume of the blender assembly, but the stopper once detached still constitutes a hindrance to the good flow of products or of the mixture either as regards the communication between the two containers, or as regards the orifice allowing the mixture to be dispensed to the exterior.
FR-A-2,239,390 shows a device of the sort defined previously in which the sealing means comprise a sealing plate connected to one of the containers, and a closure partition equipped with a seat for the sealing plate, the assembly being such that, in the closed position, the sealing plate is applied in a sealed manner against the seat, whereas an appropriate relative displacement of the two containers moves the plate away from the seat and opens the sealing means. According to FR-A-2,239,390, the displacement causing the sealing means to open gives rise to a decrease in the internal volume of the assembly, with the drawbacks mentioned previously.
SUMMARY OF THE INVENTION
An object of the invention is to provide a device for keeping at least two products separate from one another, of the sort defined previously, which no longer has the drawbacks recalled hereinabove, or exhibits them to a lesser extent. It is desired in particular for this device, when the sealing means have been opened, to allow good communication between the containers and good flow of the mixture to the exterior, without the sealing means being able to hinder this flow in an uncontrolled manner. It is furthermore desirable for the device to remain simple and economical to manufacture, whilst giving good sealing between the two containers during storage.
It is furthermore desirable for the opening of the sealing means not to be accompanied by a decrease in the internal volume of the assembly of the containers.
According to the invention, a device is provided for keeping at least two products separate from one another and for blending them at a desired instant, especially at the moment of use, of the sort defined previously, in which the sealing means comprise a sealing plate connected to one of the containers, and a closure partition equipped with a seat for the sealing plate, the assembly being such that, in the closed position, the sealing plate is appl
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"L'Oreal"
Bomberg Kenneth
Kashnikow Andres
LandOfFree
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