Dispensing – With lock or fastening seal – Plural
Patent
1989-12-15
1991-08-13
Kashnikow, Andres
Dispensing
With lock or fastening seal
Plural
222145, 22240211, 206219, B65D 8314, B65D 5502, B65D 4724
Patent
active
050389645
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
It is well known that pressurized containers of the aerosol bomb type comprise a can, most often cylindrical, that contains both the product to be dispensed and a pressurized propellant, as well as a valve to enable dispensing the product under the influence of the propellant and a device for actuation of the valve by the user.
The valve is generally disposed in the center of a cup that is crimped to the edge of the cylindrical can with a bead. It is actuated by a device that fits onto the pressurized container at the end having the valve. This device includes a skirt solidly joined to the cylindrical can in telescoping fashion or by being screwed to it; a regulating nozzle connected to the outlet tube of the valve, the outlet tube generally being fixed to the cup with the aid of a reinforcement; and a device for actuating the valve, hereinafter simply called a pushbutton, on which the user presses, and with which the valve can be made to operate and the product to be dispensed can be brought to the regulating nozzle.
Depending on how the product is to be dispensed, the pressurized container is made to function by keeping the valve at the top (a position hereinafter called top up) or at the bottom (a position hereinafter called top down). In the first case the valve is generally connected to a plunger tube located inside the container in such a way as to use the product contained until it is exhausted. If the container is used in an unsuitable position, the risk is that some of the propellant may escape by itself, without the product to be dispensed, or carrying only a small quantity of product to be dispensed with it.
In certain cases, which will be described in further detail below, it is necessary obligatorily to use the pressurized container initially in a first predetermined position, for example in order to allow a gas at overpressure or a protective gas different from the propellant to escape, with later use for distribution of the product being performed in the other position.
The user consequently runs the risk of using the container in the wrong position, resulting in a loss of the product or the propellant.
The attempt has thus been made to develop a system that locks the pushbutton and prevents the opening of the valve when the pressurized container is not in the proper position.
SUMMARY OF THE INVENTION
The present invention relates to a pressurized container including a system that blocks the pushbutton when the pressurized container is not in the proper position.
The present invention relates to a pressurized container including a valve and device for actuating the valve, the container being provided at one end with a cup crimped to its edge and in which the valve is disposed, the device for actuating the valve including a pushbutton and forming a cap on top of the cup and valve, characterized in that between the cup and the valve actuating device, a system for blocking the pushbutton when the pressurized container is not in the desired top up or top down position is provided; that this blocking system includes a movable device circulating by gravity in a conduit extending from the vicinity of the valve toward the outside, said conduit being inclined such that when the container is not in the desired position, the movable device can be displaced by gravity toward the end of the conduit located in the vicinity of the valve; that the conduit is defined between an element for transmission of the thrust on the pushbutton and a tongue, the transmission element being capable of being displaced with respect to the container and the tongue; and that the action of the movable element combined with that of the transmission element and the tongue blocks the pushbutton when the movable element is in the vicinity of the valve.
The movable device may be a roller but is preferably a ball.
The pressurized container is preferably cylindrical, the valve being disposed in the center of the circular cup, and the conduit being disposed in the vicinity of the valve radially toward
REFERENCES:
patent: 2954904 (1960-10-01), Potoczky
patent: 3186605 (1965-06-01), Potoczky
patent: 3788523 (1974-01-01), Thomas
patent: 4121772 (1978-10-01), Cronan
patent: 4518103 (1985-05-01), Lim et al.
patent: 4524078 (1985-06-01), Bardsley et al.
"L'Oreal"
Kashnikow Andres
Merritt Karen B.
LandOfFree
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