Inductor devices – Interlinked coils or windings – Coil surrounding linear conductor
Patent
1985-10-10
1987-02-03
Rimrodt, Louis K.
Inductor devices
Interlinked coils or windings
Coil surrounding linear conductor
222394, B01F 1300, B65D 8314
Patent
active
046406239
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The subject invention concerns an improved stirring member for liquid suspensions in a sealed spray container in the shape of an essentially spheriacal body.
Spray containers holding a liquid suspension comprising a solvent and paint or other products usually contain one or several stirring members which are entended to improve and enhance the mixing of the container contents when the container is shaken, particularly to effect admixture of the solvent and the other product.
Stirring members of this kind should have a weight which is suitable considering the viscosity of the suspension. In addition, they should be sufficiently durable and the material of the members be such that upon their contact with the interior surface of the spray container no material is removed from either the container surface or from the members. Such abraded material would otherwise tend to contaminate the spray liquid and obstruct the spray nozzle.
Hitherto steel balls have been used as stirring members of this kind. These have a suitable weight, are durable and non-abrasive upon their contact with the container material, which often is aluminium. To achieve a sufficient degree of blending of e.g. spray paints it is, however, generally necessary to shake the container very vigorously for at least one minute. The shaking step must be repeated quite often during the painting job in order to maintain the correct mixing proportions between the paint and the solvent. For instance, should the proportion of solvent in the liquid being discharged from the container be too high there is a serious risk that the paint applied to the painted object starts to "run". When paints known as "metallic" which contain reflecting particles are used there is also a considerable risk that the result of the painting job will be unsatisfactory because the reflecting particles become unevenly distributed on the painted surface. Good painting results therefore depend very highly on how often and how thoroughly the spray can is shaken, which obviously is both time-consuming and tedius.
SUMMARY OF THE INVENTION
The purpose of the subject invention is to provide a stirring member for liquid suspensions in a sealed spray container, which stirring member ensures a more efficient blending than has been possible with prior-art devices of this kind. The conditions for the creation of this stirring member have also been that it should be as reliable as prior-art stirring members and not significantly more expensive to manufacture. The stirring member in accordance with the invention is characterized therein that it is provided with a number of ribs extending along the member jacket face, which ribs are designed to increase the stirring effect when the stirring member moves through the liquid suspension.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be described in closer detail in the following with reference to one embodiment thereof illustrated in the accompanying drawings, wherein
FIG. 1 illustrates in a partly broken view from the side a spray container equipped with stirring members in accordance with the invention, and
FIGS. 2 and 3 illustrate one such stirring member on an enlarged sclae as seen from two different angles.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT
The spray tin 1 of FIG. 1 consists of a pressurized container 2 and of a valve mechanism which in the drawing figure is covered by a lid 3. From the valve mechanism extends an ascending pipe 4 towards the bottom of the pressurized container 2. The pressurized container 2 holds a propellant gas 5 and a liquid suspension 6 comprising a solvent 7 and a substance 8 having a higher density and collecting, as illustrated in the drawing figure, at the bottom of the container when the latter is stored in its normal upright storing position.
To allow the substance 8 to be mixed into the solvent 7 two ball-shaped stirring members 9, more clearly illustrated in FIGS. 2 and 3, are enclosed inside the pressurized container 2. The stirring member 9 is in the shap
REFERENCES:
patent: 3705669 (1972-12-01), Cox et al.
patent: 4056500 (1977-11-01), Stern
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