ES1077148U - Device for the projection of expandable polyurethane in aerosol container (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Device for the projection of expandable polyurethane in an aerosol container consisting of an accessory that, previous coupling to a pistol and a compressed air hose, coming from a compressor, serves to project from a distance the expandable polyurethane contained in an aerosol container (7), characterized by consisting of a body (1) with threaded section (1.1), of a nut (2), of a coupling joint (3), of a sleeve (4) and of a nozzle (5) with orifice foam outlet (5.1) and slot (5.2). (Machine-translation by Google Translate, not legally binding)

Description

Device for polyurethane projection expandable in aerosol container.

Technical object of the invention

The invention presented in this document refers to a device specially designed to project expandable polyurethane from aerosol container. Presents remarkable advantages over other existing means of similar Purposes These improvements affect the weight, size, assembly, shape of use, cleaning and maintenance with respect to others similar devices.

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Sector of the technique to which the invention relates

The invention presented affects the Sector of Various Industrial Techniques and specifically to the chapter of application of fluid materials on surfaces in general, directly affecting the industrial and commercial sector of devices for the projection of materials for filling or thermal or acoustic insulation

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Background of the invention

Several devices or media are known with the that expandable polyurethane can be projected to certain distance.

Essentially they consist of two containers where are the products or substances that make up the expandable polyurethane, these being stored separately to avoid their reaction. Through a mechanism of pumping the contents of both vessels are driven, by pipes independent, then through the gun Scheming which, being designed and designed for this purpose, effects mixing and projects the product outward by directing it towards the surface to be covered.

These devices have different inconveniences in its use the first of which is its incompatibility to project expandable polyurethane monocomponent from an aerosol container.

Moreover, these large appliances and heavy, are basically for industrial use or for surfaces of considerable dimensions. Its complexity requires a use by Professionals or by experts.

Experience has shown, however, that it is possible to perform the expandable polyurethane projection from a conventional aerosol container and, in consequently, the inventor has devised the corresponding device projection whose characteristics are the object of the present invention that turns out to be a novel device for industrial branch, easy to handle by DIY enthusiasts and that, due to its simplicity, it may be presented in commerce to a Very interesting price.

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Brief Description of the Invention

The present invention relates to a device applied to a gun customary for foam supply and supplemented with a small compressor, allows to carry out the projection of expandable polyurethane monocomponent from an aerosol container.

The device of the invention is composed of Five essential parts:

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Body.

-

Nut.

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meeting of coupling.

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Sleeve.

-

Nozzle.

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In a first alternative, these components can be manufactured in isolation to be assembled later each other and in another alternative, simpler, the body, mouthpiece and air intake can be manufactured in one piece which is then Assemble with nut and coupling gasket.

The body is a hollow cylinder shaped tube of revolution of about 80 mm. in length and about 15-16 mm outside diameter whose walls have a thickness close to 2 mm. having externally threaded one of its ends in a section of about 10 mm. being endowed in addition to a hole about 8 mm. in diameter that is located in the most near the threaded portion and a distance of approximately 20-25 mm of the end of the tube. The hole is internally threaded

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The nut, which is hollow with an inside diameter of about 10 mm., it fits into the threaded section allowing its through pass, with a certain game, the barrel of any gun common on the market to apply polyurethane foam.

Inside the nut the gasket is housed coupling made of flexible material to enable, by simple nut tightening, clamping and sealing over the gun barrel.

The sleeve is inserted into the threaded hole existing in the body of the device consisting of a tube hollow where you can attach the flexible hose of a small conventional compressor

The nozzle is a special piece and feature of the device as it is where it is projected outwardly expandable polyurethane. It has a cylinder shape of revolution in the part that fits inside the body and in a first external section that extends about 4-5 mm. being finished off by a conical part crossed in its axis of symmetry through a hole of approximately 1 mm. diameter. He internal part design is accurately reflected in the figures that are included in the following section although you can advance that has two slots that guide the flow outlet of air creating a pressure difference that conditions the exit and projection of the foam towards the outside.

These five components properly assembled together form the device of the invention which is capable of be coupled on the barrel of a gun of the application of Polyurethane foam. The simple connection of the hose of a compressor over the air intake sleeve allows the foam projected at a certain distance on the surfaces that are They want to fill or cover with foam.

For the best understanding of how much is left described herein include, by way of example, a drawings that allow an idea of the operation of the object of the invention and the advantages that it entails.

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Brief description of the drawings

Four schematic figures are included with the following meaning:

Figure one

It represents the device object of the invention in orthogonal views of plan and elevation. Its components are separately they represent what could be the stage prior to its assembly.

The following has been noted:

one.-

Body.

2.-

Nut.

3.-

Coupling board.

4.-

Sleeve.

5.-

Nozzle.

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Figure 2

It represents the device object of the invention in orthogonal views of raised plan and profiles in front and by behind. All its components are properly assembled for prior use coupling to the gun and air hose tablet shown in figure 3.

In addition to the aforementioned elements, it is marked the next:

1.1.-

Threaded section

2.1.-

Product Entry

4.1.-

Air entrance.

5.1.-

Foam outlet.

5.2.-

Groove.

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Figure 3

This figure is schematically represented, the device of the invention once the couplings have been made of the dosing gun and the compressed air hose, it is say it is the whole in order of operation.

The following elements are indicated:

6.-

Gun.

7.-

Spray container.

8.-

Canyon.

9.-

Hose.

10.-

Compressor.

eleven.-

Foam layer.

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Figure 4

In this figure a section of the device of the invention for clarification of the circulation of the product flows from the aerosol container, air compressed and projected foam outwards.

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Description of a preferred embodiment

In an embodiment preferred by its inventor, the device for the projection of polyurethane expandable in aerosol container (Figs. 1 to 4) is described as a accessory that, prior to coupling to a gun (6) and a compressed air hose (9), coming from a compressor (10), It serves to project the expandable polyurethane remote content in an aerosol container (7), said accessory consisting of a body (1), of a nut (2), of a coupling gasket (3), of a air intake (4) and a nozzle (5).

The body (1) is a hollow cylinder of revolution about 80 mm. in length and about 15-16 mm. from outer diameter with walls of thickness of approximately 2 mm. having at one of its ends a threaded section (1.1) of about 10 mm being also provided with a hole of about 8 mm. diameter which is located in the part closest to the threaded section (1.1) and a Approximate distance of about 20-25 mm. from the end of the tube. This hole is ready to receive a thread or pressure a sleeve (4) that has the function of constituting the air inlet (4.1), under pressure, from a compressor (10) of Low power, as usual, through the hose (9).

In the threaded section (1.1) of the body (1) attach a nut (2), hollow, with an inside diameter of about 10 mm inside which a coupling gasket (3) of flexible material Nut (2) and coupling gasket (3) are sized and designed in such a way that they allow insertion of the barrel (8) of a gun (6) of the usual ones in the market for the supply of expandable polyurethane foam from a aerosol container (7).

The tightening of the nut (2) on the section threaded (1.1) produces compression and corresponding deformation of the coupling gasket (3) clamping the barrel (8) and enabling a tight seal.

At the other end of the body (1) it fits press a nozzle (5) specially defined in (Fig. 1) with two cylindrical sections for adjustment and stop on the body (1) and a conical section with a small diameter hole, of the order 1 mm., which functions as a foam outlet (5.1). its interior design, very characteristic of the invention, presents also a groove (5.2) (Fig. 2) that allows the passage of air compressed to the foam outlet (5.1).

All components cited, body (1), nut (2), coupling gasket (3), sleeve (4) and nozzle (5) they are assembled together as shown in (Fig. 2) and, in turn, this set receives the gun barrel (8) to be inserted until cap the nozzle (5) as seen in the detail of the (Fig. 4) and in the general view of (Fig. 3).

The (Fig. 4) also shows the flow of monocomponent that enters through the product entry (2.1) and the compressed air flow that penetrates the air inlet (4.1). As for the monocomponent flow, it advances through the interior of the barrel (8) until reaching the nozzle (5) and the air flow compressed also goes to the nozzle (5) when the hermetic seal formed by the nut assembly (2), the gasket coupling (3) and barrel (8).

In the nozzle the mixture of both occurs outflows projected strongly outward by the foam outlet (5.1).

The reach of the foam jet can reach a meter or more which is an important advantage when compared with the benefits of aerosol containers that only emit the foam until it spills on the nearest outside of the container.

The inventor conceives the manufacture of the accessory of the invention in separate pieces for later assembly and also in just three pieces that would be the nut (2), the gasket of coupling (3) and the rest that would comprise the body (1), the sleeve (4) and nozzle (5) which can be unified in one only piece obtained by injection.

It is not considered necessary to make the content of this description for a subject matter expert can understand its scope and the advantages derived from the invention, as well as for developing and implementing the object Of the same.

However, it should be understood that the invention has been described according to a preferred embodiment thereof, so which may be subject to change without implying any alteration of the basis of said invention, being able to affect such modifications to the shape, size and / or Manufacturing materials; that is, the terms in which it has remained Exposed this preferred description of the invention, should be always taken with a broad and non-limiting nature.

Claims (3)

1. Device for spraying expandable polyurethane in an aerosol container consisting of an accessory that, prior to coupling to a gun and a compressed air hose, from a compressor, serves to project the expandable polyurethane contained in an aerosol container (7) ), characterized by having a body (1) with threaded section (1.1), a nut (2), a coupling gasket (3), a sleeve (4) and a nozzle (5) with an orifice foam outlet (5.1) and slot (5.2). 2. Device for spraying expandable polyurethane in an aerosol container, according to claim one, characterized in that the sleeve (4) is located in the vicinity of the threaded section (1.1) of the body (1). 3. Device for spraying expandable polyurethane in an aerosol container, according to previous claims, characterized in that it is manufactured in separate pieces for subsequent assembly or, alternatively, grouping the body (1), sleeve (4) and nozzle into one (5) whose single part is obtained by injection.