Agitating – Rubber or heavy plastic working
Patent
1986-11-24
1989-01-03
Levy, Stuart S.
Agitating
Rubber or heavy plastic working
206219, B01F 310, B65D 8132
Patent
active
047952652
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to a method and a device for intimately mixing at least two hardly mixable components with each other wherein, initially, the different components are kept in separate storage compartments in a flexible package, whereupon an external pressure is applied to the package to cause the components to flow into a common compartment while being mixed together.
BACKGROUND OF THE INVENTION
A device of this kind is known from US-A-3 028 000, namely, in the form of a plastic foil package with two chambers arranged in parallel adjacent to each other and being separated by an easily detachable sealing line. The sealing line is disposed in such a way that it will break along predetermined parts when external pressure is applied by manual kneading. By kneading repeatedly, two different liquids, initialy kept in separate chambers, are mixed together and are discharged upon tearing off a lap.
For mutually easily soluble liquids of low viscosity, such an arrangement work well, but problems arise when trying to mix hardly soluble liquids or paste-like components in this way, in particular when they differ in respect of viscosity and density.
SUMMARY OF THE INVENTION
Thus, the object of the invention is to achieve a method and a device securing effective mixing action, even in the case of mutually barely mixable substances, especially substances which for health or individual hygienic reasons are to be kept and handled in closed vessels or tube systems. An example of such components are industrially useable epoxy plastic systems with a resin and a hardening agent, e.g., intended for injection or serving as glue or putty. Then, extremely vigorous stirring or other mechanical action is necessary to ensure that the components are properly mixed so as to engage in a chemical reaction.
In using a method of the kind mentioned initially, this object is achieved in that, according to the invention, in a first step, the different components are transferred into a common compartment and, in a second step, by applying external pressure and building up increased internal pressure in the common compartment, the components are brought to flow explosively into an adjacent compartment while being intimately mixed with each other.
Thus, in practice, it has turned out that a sudden, explosive flow of the components into an adjoining compartment results in remarkably effective mixing action, whereby the components will form a homogeneous mass, in particular if the operation is repeated a number of times.
The demarcation between the adjoining compartments or chambers may be quickly eliminated in different ways, e.g., in that a partition or seal is caused to break by applying increased pressure adapted to cause the desired explosive flow or that a blocking element, which exerts a squeezing force on the flexible package, is suddenly emoved. In the latter case, the package has no pre-fabricated demarcations, but these are formed by the influence of the blocking element.
It is also possible to press the components forward, by a squeezing action, against a transverse partition having separate flow passages, so that the flow velocity increases dramatically in the final stage when the squeezing force approaches the transverse partition.
BRIEF DESCRIPTION OF THE DRAWINGS
In order that the invention may be more clearly understood, reference will now be made to the accompanying drawings, wherein several embodiments of the invention are shown for purposes of illustration, and wherein:
FIG. 1 is a perspective view of a first embodiment of an inventive package placed on a plate with a squeezing roller;
FIG. 2a shows the arrangement according to FIG. 1 in longitudinal section;
FIG. 2b shows in a perspective view a number of interlapping foil pockets included in the package according to FIGS. 1 and 2a;
FIG. 3 shows an auxiliary discharge device which may be included in the package according to FIGS. 1 and 2a;
FIGS. 4a to 4c show a section of FIG. 2a in a larger scale to illustrate the different phases of th
REFERENCES:
patent: 3028000 (1962-04-01), Clements et al.
patent: 3771773 (1973-11-01), Schriever
patent: 4226330 (1980-10-01), Butler
patent: 4280391 (1981-07-01), Fischer et al.
patent: 4509642 (1985-04-01), Rowell
Dahlberg Anders
Dahlberg Leif
Levy Stuart S.
Sohacki Lynn M.
Tatis Plasttatningar AB
LandOfFree
Method and device for intimate mixing of two components in a pac does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and device for intimate mixing of two components in a pac, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for intimate mixing of two components in a pac will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2165456