IL23060A - Sprayer for liquid or gas and accessories for filling or discharging the container thereof - Google Patents

Description

C O H E N Z E D E K & S P I S B A C H R EG D . P AT E N T ATT O R N E YS 24, LEVO P A T E N T S & D E S I G N S O R D I N A N C E 12995/65 SPECIFICATION SPRAYER FOR LIQUID OR OAS AND ACCESSORIES FOR FILLING OR DISCHARGING THE CONTAINER THEREO ' MICHELE ZERBETTO, an Italian citizen, Via Vareee 5» Roma, Italy, / HEREBY DECLARE the nature of this invention and in what manner the same is' to be performed to be particularly described and ascertained in and by the following statement: P.A. 23Ο6Ο , Filet 12995 4.II.I968.

The present invention concerns a fluid or liquid gas sprayer having a perfectly transparent graduated body which makes it possible to follow easily the variations of volume of its contents, as well as a special device for easy assemblage on it, destined to be used when the contents of the container is to be transferred into another container, or for recharging the first-mentioned container. The use of Aerosol-type valves, which are very well-known, is foreseen for this sprayer.

Such containers, with dispenser valves for spraying, are nowadays used in such a wide range of applications- from the charging of cigarette-lighters to wax, perfume—, lacquer-, and like sprays - that it is needless to refer even briefly to their relative uses.' It should be pointed out,, however, that in practice there are spraying valves of substantially two dimensions as regards the spraying mouth of the container, their features being suitable for use with a relatively high pressure, for which the material and the shape and thickness chosen for the containers will naturally be suitable. The spraying mouths of these containers correspond to the dimensions of these two valve types, even though the body of the container, in consideration of its material, may have greater or smaller transverse dimensions, i.e. the containers may have a very different volume, and, above all, transverse dimensions, but will have valves of theee two characteristic dimensions and generally with the same mode application.

P.A. 2306O Pile: 12995 .II.1968. smaller dimensions, with a smaller valve, the introduction of the use of synthetic material, with a general indication of the internal volume of liquid contained, has been attempted. However ,with metallic materials it will be impossible to control the volume of liquid contained; and in the case of synthetic resin material, as at present used for some applications, opacity is very strong and transparency against a light source is very slight. Moreover, this disadvantage will increase with use, as opacity will become more intense and consequently transparency will diminish.

The present invention aims, first of all, at obviating such disadvantages, as the transparency of the containers is of the greatest advantage, particularly in certain uses of it. The inventor has therefore conceived the use of a synthetic material having a practically complete transparency, the use of which, for the purpose in' question, is better warranted by the omplete sealing capacity of the material itself, i addition to that of the valve, which may be applied in the foreseen pressure-conditions of the liquid contained.

A further object of the present invention is to produce the container by compression mouldin of cellulose acetate in a cylindrical mould with plane or lightly concave bottom and an edge at the open end, slightly projecting outwardly at a right angle, its upper annular face having annular grooves for fitting and better P.A. 23Ο6Ο File: 12995 4.II.I968. sufficient, for pressure sealing, to fold its edge over the edge of the container itself.

A further object of the present invention is to provide two devices for making application better and easier. These are two members of resilient material, one of which permits an easy and convenient discharge of liquid gas from its container into another container, particularly into the container of a cigarette-lighter, The other device permits an easy and convenient recharging operation of the first container, by feeding from a feeding container. In both cases, the characteristic transparency of the container of the invention, and the volumetric graduation on its cylindrical surface, render its use much more practical and satisfying.

Of the realizable forms selected for this invention, one of them corresponds to the valve with a greater diameter, and the other to that with a smaller diameter.

In the following specification and in the accompanying drawings are Indicated the dimensions preferred. In the Drawings : Fig.l is an elevatlonal, partially sectional view of a container of this invention, of the kind with a large valve, as it appears after its press-moulding.

Fig. is an elevatlonal view of the spraying device in its final form, afte application of a normal large valve to the container of Fig.l.

Fig.3 is an elevatlonal view of a normal valve, d a d before its mountin on a container P.A. 2306O Pile: 12995 4.II.1968. fitted with its valve.

Pig.5 is an enlarged, elevational, partially sectional view of a complementary member to be fitted on the upper end of the valve stem, comprising the device for discharge from the container in Fig.2 into another container, e.g. into a cigarette-lighter.

Fig.6 is an enlarged, elevational, partially sectional view of a complementary member to be fitted on the upper end of the valve stem, comprising the device for rechargin the first container from a feeding container.

As above stated, the container of the spraying device of the present invention has, in Fig.l, a' substantially cylindrical body 10 with an inner diameter, in connection with its mouth, of 1 inch, accordin to the dimension of the corresponding valve in normal use. in the drawing may be seen the upper open edge 11 folded at a right angle outwardly with respect to the cylinder axis, its upper face having annular grooves; the whole unit is obtained by pressure mouldin The body may be considered perfectly transparent and vitreous, and consists of cellulose acetate whose compact ' formation assures the perfect sealing of the body itself, even under normal pressure conditions as suggested for this form of container for the use for which they are destined. The gasket and the seal of the metallic edge of the valve on the edge of the con P.A. 23060 File* I2995 4. 11.196β.

In addition to the complete transparency conceived for the cylindrical body of this container, a volumetric graduation 13 will be seen. The liquid contained is perfectly visible to the operator, who will be thus able to follow the variations of volume during discharging and recharging operations.

As above mentioned, an advantage of this form o container, if only from the point of view of the cost of the die for the application of the valve, is the fact, that the external vertical surface of the valve ; is only forced, in this case, against the cylindrical inner surface of the container; that is, there are not, as in the usual containers, transversal annular grooves, concentric to the axis of the container, to make the seal between the valve and the container more sure.

The dimensions selected for the container of the present invention are the following: Total length of the container, from the external surface of the superior edge to the lower etifd of the bottom, 105 mm; inner diameter at the uppe end (corresponding to the valve in commerce )l inch} thickness at the upper end about 2mm,0 The cylinder is axially tapered towards the bottom, with a sufficient tapering for moulding purposes.

It is, clear that, for normal conditions of use as an Aerosol spray, the valve is complete with its usual members, suited to the purpose of the sprayer and forming part of the valve itself.

When the sprayer has smaller containers, (Fig.4), the composition is the same as that previously considered P.A. 2306O Pile: 12995 ^.H.1 68. similar to the former's} the shape is the same as that of Fig.'l, maintaining substantially its proportions. In this case, the length of the body is 70mm.5 the outer diameter is 17mm. , the thickness of the body lh of cellulose acetate is about lmm. The corresponding valve 15 (Fig.3) has a cylindrical s opper-like collar l , adapted to form the seal, and having external diameter of about 21.3mm. The cylindrical body lh o this container is also naturally provided with a slightl conical tapering towards the bottom, because of the necessary Stamping operation.

The devices comprising the complementary members of Figs. 5 and 6, to be fitted on the end of the valve stem 17, are, as mentioned, of use for the discharging of the liquid contained into another container, particularly into that of a cigarette-lighter, and for recharging the first container from a feeding container. Member 18 of Fig.5 is made of a resilient material, with its external shape particularly adapted for the necessities of manufacturing, but with the possibility of adaptation, the device being slip fitted on to the valve stem 17 by means of its axial bore 20 having at lower end 21 a flaring portion, a spray outlet being formed by a suitable enlarged portion 22 at the opposite end of the same member. Its resiliency, its sealing or locking capacity and its good adaptation on the stem 17 and into the bore of the container to be charged, assure the practical usefulness of this object, particularly for P.A. 2306O Filet 12995 4.11.1968. operation under the best possible conditions.

So fo instance, with membe 18 fitted to the sprayer, its end 22 may be inserted iiftcPr applied to the fitting opening of a lighter and the contents discharged into the fuel tank of the lighter.

The other complementary membe 23 of Fig.6, which, as mentioned, serves for the recharging of the container 10 or l4 from a feeding container, has its body Zh with its lower part shaped slightly similarly to that of member 19» and anyway adapted, by means of bore 5 with its flaring 26 at its lower end, for a simila fitting or locking on vajye st¾jp < 7, whether for a large valve (Fig.2) or for a small valve (Figs «3 and ¾). A conical bore 28, coaxial with bore 25, serves as housing for the valve stem of the feeding container*, and the axial bore length 27 serves to connect 5 and 28. As a practical consequence, when recharge of container 10 or lh is desired, this complementary member 23 s mounted on the respective valve stem, and the valve stem of the feeding container is then introduced into bore 28. By compression of the feeding container on that member, the two containers are connected and the passage of th fluid from the feeding container to the container 10 or 1 is established; this passage may be easily controlled in containers of the present invention, because of their transparency and the graduations applied on their cylindrical surfaces. Any possible momentary P.A. 2306O File: 12995 .II.1968. only the sprayer which is to be charged, and by then resuming the former operation of compression and of connection between the feeding container and the spraying container of the present invention.

Claims (3)

P.A. 2306O Filei 12995 2. 12.1968. WHAT I CLAIM IS«

1. . Sprayer for fluids or liquid gas, comprising an Aerosol valve, characterized by the fact that it consists of a cylindrical injection-moulded perfectly transparent container of cellulose acetate, having a bottom formed integrally with the cylindrical wall and an edge at its open end folded outwardly at a right angle to form a flange, the annular upper face of this flange having concentric grooves for a better sealing of the valve gasket, in combination two complementary devices adaptable on the valve stem of the sprayer, and for use alternatively either for the discharge of the contents of the sprayer into another container* or the recharge of the sprayer container from a feeding container, the said first device consisting of a resilient complementary spout member, shaped and bored either for mounting on the spraying valve, stem to fit thereon or for adaption of said member in the bore of the container to be charged, the said second device consisting of a resilient complementary spout member, shaped and bored, adapted either for mounting and sealing on the valve stem, or for receiving the valve stem of the feeding container, in order to connect the two containers and to enable a passage of fluids from said container to the container to be charged.

2. Sprayer as in Claim 1 , characterized by the fact that, on the cylindrical surface of the transparent container, there are suitable graduations which serve to show the volume of the contents and/or its variations during the discharging or recharging of the container. P.A. 2306O FileI 129 5 2.12.1 68.

3. Sprayer for fluids and/or liquid gases substantially as hereinbefore described end shown in the appended drawings. COHEN ZEDEK and SPISBACH, P.O.B. II69. TEL AVIV. Attorneys for Applicants.