US3684195A

US3684195A - Valves

Info

Publication number: US3684195A
Application number: US102375A
Authority: US
Inventors: Pierre Bret; Catherine Suck
Original assignee: Lablabo SA
Current assignee: Lablabo SA
Priority date: 1970-01-14
Filing date: 1970-12-29
Publication date: 1972-08-15
Anticipated expiration: 1989-08-15
Also published as: CA976125A; IL35888A; NO132262C; DE2101604A1; ES197002U; ES197002Y; LU62393A1; NO132262B; FR2076399A5; SE366655B; NL7100430A; AT318420B; GB1336579A; CH530226A; IL35888A0; BE760165A

Abstract

A valve for use in the ejection of a fluid under pressure wherein the valve includes a valve body having a distributor which slides in a duct in the valve body and which communicates through a lateral ejection orifice with a distribution nozzle, and wherein there is provided a capping member for the valve body which capping member has a hollow lateral protuberance which acts as a support for the distribution nozzle.

Description

United States Patent Bret et a1. 1451 Aug. 15, 1972 1 VALVES 3,199,510 8/1965 Sinai ..l28/239 X [72] Inventors: Pierre Bret Meudomwporet; 2,869,762 1/1959 Sanders ..222/385 x Catherine Suck, Mommuge, both of 2,764,978 10/1956 Everett ..l28/2l5 France 2,612,297 9/1952 Ball] ..222/385 ux [73] Assignee: Societe Lablabo, Montrouge, France FOREIGN PATENTS OR APPLICATIONS [22] Filed: Dec. 29,1970 706,150 3/1954 Great Britain ..l28/239 734,741 8/1955 Great Britain ..222/385 [211 102575 321,033 9/1934 Italy ..222/385 578,416 6/1958 Italy ..222/385 [30] Foreign Application Priority Data Jan. 14, 1970 France ..7001179 ExamimPUOYd King Assistant ExaminerThomas C. Culp, Jr. 52 us. (:1. ..239/561, 128/239, 222/385, Ammeylac bs & Jacobs 239/600 [51] Int. Cl. ..B05b 1/14 ABSTRACT [58] Fleld of Search-222385; 128/234 1 Gt A valve for use in the ejection of a fluid under pres 128/239 561; 2 sure wherein the valve includes a valve body having a 601 distributor which slides in a duct is the valve body and i which communicates through a lateral ejection orifice [56] Re erences I with a distribution nozzle, and wherein there is pro- UNTTED STATES PATENTS vided a capping member for the valve body which capping member has a hollow lateral protuberance i188; gi lfg which acts as a support for the distribution nozzle.

er1 an 3,399,676 9/1968 McLaughlin 128/239 X 4 Claims, 8 Drawing Figures i 11 E. 72 1 ET I t 70 5Q ll 1/ PATENTED AUG 15 I972 SHEET 1 OF 2 [AA/g rags QTZQ ZZ s W/ VALVES BACKGROUND OF THE INVENTION This invention relates to valves and, more particularly, is concerned with valves of the type which comprise a dosing head combined with a distributor which slides in a duct formed in a body, which is generally cylindrical in shape, so that an outlet in the distributor may register with a lateral ejection orifice formed in the body, the body being secured in a fluid-tight manner on a receptacle containing a fluid, generally a liquid, the delivery of which it is required to effect.

In valves of the above-described type, the body is generally formed with an aperture which communicates with the ejection orifice and into which there is secured, for example by a force fit or by screwing, a distribution nozzle. This method of securing the distribution nozzle is satisfactory only in cases where it is not subjected to any lateral force since experience has shown that the distribution nozzle when subjected to a lateral force readily ruptures, particularly if the distribution nozzle has a significant length. This problem becomes particularly acute when the distribution nozzle takes the form of an injector for injecting a liquid into an inner portion of the body of a patient in the course of medical treatment.

SUMMARY OF THE INVENTION According to the present invention there is provided in a valve, for the ejection of a fluid under pressure, said valve comprising (A) a valve body having (i) a duct, in which there is disposed a distributor which can slide in said duct, and (ii) a lateral ejection orifice communicating with said duct and (B) a distribution nozzle communicating with said ejection orifice, the improvement which comprises securing the distribution nozzle 'in or on a capping member which is located on said valve body and rendered fast therewith, the capping member being provided with a hollow lateral protuberance, having a thickness at its base sufficient to withstand lateral forces, in or on which the distribution nozzle is secured.

According to the present invention the distribution nozzle is secured not, in this case, directly within an aperture formed in the lateral wall of the valve body but in or on a member capping the said body and rendered fast therewith, the said member comprising a lateral protuberance of relatively considerable thickness at least at its base to withstand lateral forces, and on or in which the distribution nozzle is secured.

It should be noted that this arrangement furthermore permits the fitting on the valve body of interchangeable distribution nozzles intended for various purposes.

DESCRIPTION OF THE PREFERRED EMBODIMENTS For a better understanding of the invention and to show how the same may be carried into effect, reference will now be made, by way of example, to the accompanying drawings in which:

FIG. 1 shows an elevation, partly broken away, of a known valve;

FIG. 2 shows an elevation, partly broken away, of a valve in accordance with the present invention;

FIGS. 3 and 4 are, respectively, ahorizontal section taken along the line III-III of FIG. 2 and a horizontal section taken along the line IV-IV of FIG. 2;

FIG. 5 is an elevation, partly broken away, of a valve in accordance with the invention provided with an injection cannula;

FIG. 6 is an elevation, partly broken away, of a valve in accordance with the invention provided with an injection needle; and

FIGS. 7 and 8 are horizontal sections, taken along a line corresponding to the line IV-IV of FIG. 2, of two further embodiments of valves in accordance with the invention.

FIG. I shows an example of a known valve of the type described in the Patent Application Ser. No. 852.698 filed on the 25th of Aug. 1969 in the names of Mr. Pierre Bret and Miss Catherine Suck. In this known valve, a body 1, through which there slides a distributor slide 3 of a dosing head 4, is made from a plastics material and is mounted in a fluid-tight manner on a container, for example a bottle, for a liquid by means of a metal ring 2 crimped at its lower edge on the neck of. the container. A distribution nozzle 5 is secured in the body 1 by being driven into an orifice contiguous with an ejection orifice 6. Consideration of FIG. 1 shows that any lateral or oblique force exerted on the distribution nozzle 5 involves a risk of rupture in the zone of the plane tangential to the external surface of the body 1.

A valve in accordance with the present invention includes, as shown in FIGS. 2 to 4, a cap which fits over the valve body 1 and comprises a cylindrical portion 7 from which extends a lateral protuberance or nose 8 formed witha duct 9 which, when the cap is in position, is located opposite the ejection orifice in the valve body 1. In this embodiment, the lateral protuberance 8 is of approximately conical shape so as to have a high degree of strength adjacent the valve body. In order that the cap may be mounted precisely in a position affording coincidence between the conduit 9 and the ejection orifice formed in the valve body 1, there is provided on the latter a locating lug 10 which lodges in a corresponding notch l l formed in the top 12 of the cap; thus rapidity and accuracy in the mounting of the cap in a satisfactory angular position can be ensured. The correct vertical position is assured on the one hand by the presence of the top 12 which abuts against the valve body, and on the other hand by the arrangement within the lateral protuberance 8 of a tube 13 (not delineated in FIG. 2) which extends into an associated aperture which is formed in prolongation of the ejection conduit 6 of the valve body. This arrangement, whilst assuring the satisfactory placing in position of the cap, at the same time ensures fluid-tightness between the cap and the valve body. The cylindrical portion 7 of the cap extends, advantageously, below the valve body 1, thus forming (as may be seen in FIG. 2) a skirt concealing the lower crimping of the ring 2 on the neck of the bottle.

The cap can be manufactured from any appropriate material, but is preferably manufactured from a plastics material.

There may be mounted on the capdistribution nozzles of a desired shape and function. Thus FIG. 5 shows an injection cannula 15 mounted by force-fitting on the lateral protuberance 8; and FIG. 6 shows a needle, for hyperdermic or intramuscular injection, mounted on the end of an inner tube 16, on the lateral protuberance 8, in a manner similar to tube 13 described with regard to FIG. 3.

It is also possible to fit other types of distribution nozzles on the cap. Thus, distribution nozzles of simple shape could comprise the tube 13, which is described with reference to FIG. 3, prolonged by a sufficient length externally of the lateral protuberance 8.

The cap carrying the distribution nozzle can be arranged and secured on the valve body 1 of the valve in various other ways:

In FIG. 7, there is shown an embodiment in which the cap 21 is in one piece and comprises, internally, a portion 19 which fulfills the same role for the positioning of the member 21 as that fulfilled by the tube 13 in the case of the embodiment shown in FIGS. 3 and 4. The member 21 is attached to the valve body through the agency of

parts

17 and 18 which engage in associated apertures formed in the valve body. The resilience of the plastics material from which the cap is made is utilized in placing the cap in position on the valve body.

In FIG. 8, there is shown an embodiment in which the cap is again in one piece; but now completely surrounds the valve body. It is formed, internally, with a portion 20 of lip-shape, fitting within the outlet of the ejection duct 14 of the valve body. The portion 20 simultaneously affords fluid-tightness between the valve body and the cap and provides for accuracy in positioning the cap relative to the body. Theplacing in position of the cap also here effected by virtue of the resilience of the material from which the cap is made.

What is claimed is:

I. In a valve for the ejection of a fluid under pressure, said valve comprising (A) a valve body having (i) a duct, in which there is disposed a distributor which can slide in said duct, and (ii) lateral ejection orifice communicating with said duct and (B) a distribution nozzle communicating with said ejection orifice, the improvement which comprises securing the distribution nozzle in or on a capping member which is disposed over and rendered fast to said valve body, the capping member being provided with a hollow lateral protuberance of a substantially conical shape and having a thickness at its base sufficient to withstand lateral forces, in or on which the distribution nozzle is secured.

2. A valve as claimed in Claim 1, wherein the capping member comprises a notch into which extends a lug provided on the valve body whereby correct orientation of the capping member with respect to the valve'body can be effected.

3. A valve as claimed in claim I, wherein the lateral protuberance on the capping member comprises, internally, a tube through which the liquid is evacuated said tube extending into the ejection orifice in the valve body, whereby the positioning of the capping member and the fluid-tightness between the capping member and the valve body are ensured.

4. A valve as claimed in claim 1, wherein the capping member is made in a single piece and wherein the protuberance, through which extends a conduit intended for the outflow of the liquid, is prolonged at the side of the valve b od by a projectinglportion extending into the lateral e ec ion orifice in t e said valve body and providing for the orientation of the said capping member and for fluid-tightness between the said capping member and thevalve body.

Claims

1. In a valve for the ejection of a fluid under pressure, said valve comprising (A) a valve body having (i) a duct, in which there is disposed a distributor which can slide in said duct, and (ii) lateral ejection orifice communicating with said duct and (B) a distribution nozzle communicating with said ejection orifice, the improvement which comprises securing the distribution nozzle in or on a capping member which is disposed over and rendered fast to said valve body, the capping member being provided with a hollow lateral protuberance of a substantially conical shape and having a thickness at its base sufficient to withstand lateral forces, in or on which the distribution nozzle is secured.

2. A valve as claimed in Claim 1, wherein the capping member comprises a notch into which extends a lug provided on the valve body whereby correct orientation of the capping member with respect to the valve body can be effected.

3. A valve as claimed in claim 1, wherein the lateral protuberance on the capping member comprises, internally, a tube through which the liquid is evacuated said tube extending into the ejection orifice in the valve body, whereby the positioning of the capping member and the fluid-tightness between the capping member and the valve body are ensured.

4. A valve as claimed in claim 1, wherein the capping member is made in a single piece and wherein the protuberance, through which extends a conduit intended for the outflow of the liquid, is prolonged at the side of the valve body by a projecting portion extending into the lateral ejection orifice in the said valve body and providing for the orientation of the said capping member and for fluid-tightness between the said capping member and the valve body.