EP0548350A1 - Recipient pulverisateur. - Google Patents
Recipient pulverisateur.Info
- Publication number
- EP0548350A1 EP0548350A1 EP92916077A EP92916077A EP0548350A1 EP 0548350 A1 EP0548350 A1 EP 0548350A1 EP 92916077 A EP92916077 A EP 92916077A EP 92916077 A EP92916077 A EP 92916077A EP 0548350 A1 EP0548350 A1 EP 0548350A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- operating rod
- container
- seal
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/44—Valves specially adapted for the discharge of contents; Regulating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/38—Details of the container body
Definitions
- the invention relates to a spray container for spraying a product, in particular liquids, using a pressurized fluid, in particular a gaseous fluid, for example compressed air, said container being closed at its upper part, by a cup carrying a valve having a generally cylindrical body inside which is defined a chamber which is connected, by means of a dip tube, to the volume of the container containing the product to be sprayed, and , in which is slidably mounted an operating rod comprising at least two coaxial cylindrical portions of different diameters defining between them a transverse annular abutment bearing, the portion of smaller diameter or first portion being intended to receive a push button provided with a spray nozzle, a blind axial channel formed in said first portion being, on the one hand, in communication with said nozzle, l when the push button is mounted on the operating rod, and, on the other hand, with the outside of the rod via a radial channel passing through the wall of the operating rod which is movable, sealed, by its first portion , in the central opening of an
- the pressurized fluid such as compressed air, CO2 or the like, which is under a relatively high pressure, of about 10 bar, serves as a propellant for the product which is sprayed through the spray nozzle.
- the pressurized fluid such as compressed air, CO2 or the like
- CO2 compressed air
- the first problem which arises is that after releasing the push-button, therefore interrupting the flow of the pressurized fluid, the pressures equalize on either side of the small orifice, and the product, in the chamber and the dip tube descends until it reaches the level corresponding to that existing in the spray container.
- the first object of the invention is to avoid these drawbacks and to provide a spray container, of the type mentioned above, making it possible to avoid this loss of fluid under pressure, and to obtain a spray as fine as in the past. .
- this object is achieved by the fact that a device is provided which prevents, after each spraying, the emptying, towards the bottom of the container, of the product contained in the chamber and in the dip tube.
- the device which prevents this emptying comprises means for closing the communication of the small orifice with the valve chamber. These closing means are operational when the valve stem is in the rest position.
- Said closing means are constituted by at least one circular seal disposed between the second portion of the operating rod and the inner cylindrical surface of the valve chamber, and carried by said second portion which also has an axial blind passage followed a radial passage passing through the wall of the second portion, said axial and radial passages communicating the two volumes of the valve chamber located on either side of the circular seal.
- the closure means consist of two circular seals arranged axially at a distance from each other at least equal to the largest dimension, along the axis of the valve, of the section by which the small opening opens into the valve chamber.
- the closure means consist of a ring-shaped seal of substantially rectangular section whose axial height is at least equal to the largest dimension, along the axis of the valve, of the section through which the small orifice opens into the valve chamber.
- the second problem which arises is that, so far, if it is desired to have a first spraying mode, where the product alone is sprayed, and a second spraying mode, where a mixture of product and of fluid is sprayed, two specific types of spray containers are provided, each one being adapted, by its construction, to the chosen spray mode.
- the second object of the present invention is to provide a spray container allowing the two spray modes, that is to say allowing spraying of the product without or with additional fluid.
- said two-mode means comprise means for closing the communication of the small orifice with the valve chamber, said closing means being operational for a first stroke of the operating rod and non-operational for a second stroke of the operating rod following the first stroke, the radial channel passing through the wall of the first portion of the operating rod connecting the chamber and the axial channel of said first portion during the first and the second stroke of the operating rod maneuver.
- the closing means consist of a piston sliding in the valve body; said piston is integral with the second cylindrical portion of the operating rod, said piston being traversed by at least one passage communicating the lower part and the upper part of the chamber defined on either side of the piston.
- the piston is disposed axially between the operating rod and the bottom of the chamber, first elastic compression means being placed between the operating rod and said piston, and second elastic compression means being arranged between said piston and the back of the room.
- FIG. 2 is a partial view, in section, of a variant of the valve according to Figure 1;
- FIGS. 3, 4 and 5 show, in section, a valve of another spray container according to the invention, the valve stem occupying three different positions illustrated respectively by the three figures 3, 4 and 5;
- a spray container consists of a cylindrical envelope 18 having a bottom at its bottom, not shown, and closed at its upper part by a cup 3, a seal 2 ensuring the tightness of the closure.
- the container is filled with a product to be sprayed, and with a pressurized fluid, for example compressed air.
- a spray valve 7 comprises a valve body 6 and an operating rod 1; the valve body 6, of generally cylindrical shape, has at its upper part, in FIG.
- the transverse upper wall of the cup 3 is pierced with a circular orifice 3a; an annular seal 4, placed inside the bead 6a, is compressed, during crimping, between the upper wall of the cup 3 and an annular bearing 6b, concentric with the bead 6g and carried by the valve body 6, extending up to 'At the joint 4 the cylindrical inner wall 25 of the body 6;
- the operating rod 1 comprises two coaxial cylindrical portions 23 and 24, defining a transverse annular surface 17; the portion 23 of the rod 1 has a diameter slightly less than that of the orifice 3a of the cup 2, while the portion 24 of the rod 1 has a diameter greater than that of the orifice 3â, while being slightly smaller to the diameter of the inner wall 25 of the body 6.
- the portion 23 passes through the seal 4 and the orifice 3a of the upper wall of the cup 3, the portion 24 is in the chamber 10 defined inside the body 6;
- the body 6 has, at its lower part, an extension 16, of smaller diameter than that of the rest of the body, along the axis of the body 6, and shaped as a nozzle on which is connected a dip tube 22, made of plastic, allowing communication between the chamber 10 and the product to be sprayed contained in the container, the dip tube 22 plunging to the vicinity of the bottom of said container.
- radial fins 15 distributed circumferentially, define a planar surface 20 of transverse abutment, serving as a seat for a helical spring 11; the cylindrical portion 24 of the rod 1 is extended, at its lower part, by a tail 21 of smaller diameter so that a transverse surface 19 is defined at the connection of the tail 21 and the portion 24; the spring 11 at its other end surrounds the tail 21 and rests on the bearing surface 19, thus applying, at rest, the transverse annular bearing surface 17 of the rod 1 against the annular seal 4.
- a seal 9 is disposed at the periphery of the cylindrical portion 24 and cooperates with the internal cylindrical wall 25 of the body 6 to seal it, the portion 24 being mounted in the body 6 by sliding, in the manner of a piston in a cylinder; according to Figure 1, the seal 9 consists of two O-rings 9a and 9b spaced axially; a small orifice 8 is formed in the wall of the body 6 and communicates the chamber 10 with the upper volume of the container in which the fluid under pressure is located; the small orifice 8 is located axially so that it opens into the chamber 10 between the O-rings 9a, 912 when the rod 1 is at rest, so that, in this position, the chamber 10 does not communicate with the volume of the container surrounding the valve 7.
- the second cylindrical portion 24 of the rod 1 has an axial blind passage 14 followed by a radial passage 5 passing through the wall of said second portion 24, said axial passages 14 and radial 5 opening respectively into the chamber 10 on either side of the O-rings 9a, 9.2 . by somehow short-circuiting said seals 9a, 9b.
- a blind axial channel 13 is also formed in the first portion 23 of the rod 1, the open end of the channel 13 communicating with the spray nozzle when the push button (not shown) is mounted on the operating rod 1; the channel 13 is, moreover, in communication with the outside of the rod 1 by a radial channel 12 passing through the wall of the first portion 23 of the rod 1; the section of said channel 12 through which it opens to the outside is less than the thickness of the joint 4; in the rest position, as shown in Figure 1, the channel 12 opens to the right of the thickness of the seal 4.
- the container according to the invention operates as follows. From the rest position, as shown in Figure 1, a downward action on the operating rod 1 lowers it in the body 6, guided in the body 6 by the tight sliding assembly from there second portion 24 of said rod 1.
- the radial channel 12 is no longer obstructed by the seal 4 and, on the other hand, the small orifice 8 communicates the upper part of the container containing the pressurized fluid with the upper part of the chamber 10 located above the seal 9â, said seal 9a having passed downwards the level of the small orifice 8 due to the displacement of the operating rod 1.
- the product to spray is pushed by the pressurized fluid from the dip tube 22 to the part of the chamber 10 located below the seal 9b and the channels 14, 5, 12, 13, and therefore to the spray nozzle; in parallel, pressurized fluid is also brought to join the nozzle via the upper part of the chamber 10 situated above the seal 9g and the channels 12 and 13; in fact, it is a mixture of fluid and product which is sprayed; the pressure drop through the small orifice 8 results in a pressure in the chamber 10 above the seal 9a less than the pressure in the chamber 10 below the seal 9J2, which allows the product to be dispensed from the container, as described above.
- the means for closing the small orifice 8 consist of a seal 9c. in the form of a ring of substantially rectangular section whose axial height is greater than the section through which the small orifice 8 opens into the chamber 10; the operation of the container fitted with such a seal is identical to that described with reference to FIG. 1.
- the second object of the present invention is to provide a spray container allowing the two spray modes, with or without additional fluid.
- Figures 3 to 7 show, partially, two variants of such containers, more precisely two variants of valves fitted to such containers and making it possible to achieve this goal.
- parts or components similar, in particular in their function, to those described in connection with Figures 1 and 2 have the same numbers and will therefore not be described.
- Figures 3 to 5 show a first variant of valve 7;
- Figure 3 shows the operating rod 1 in the rest position, held in this position by the spring 11; the rod 1 carries a piston 31 mounted for leaktight sliding in the body 6; the piston 31 is crossed by passages 30 communicating the volumes of the chamber 10 located above and below the piston 31.
- FIG. 4 shows the relative position of the elements after the rod 1 has made a first downward displacement stroke, following an action on the push button (not shown) mounted on the first portion 23 of the rod 1; in this position, the radial channel 12 is no longer opposite the seal 4, and the small orifice 8 is still obstructed by the piston 31, the axial height of which is provided sufficient to do this; therefore, in this position, this first spraying mode corresponds to a spraying of the product alone.
- Figure 5 corresponds to a second stroke of the rod 1, following the first stroke; in this position of the elements, the small orifice 8 is no longer obstructed by the piston 31; spraying is of the second mode, in which it is a mixture of product and of fluid to be sprayed which passes through the spray nozzle.
- the relative position of the channels 12 and 8 and of the piston 31, as well as the axial height thereof, define the position of the rod 1 for which the change of spraying mode takes place.
- Figures 6 and 7 show another embodiment of a valve fitted to a container with two spray modes.
- a piston 40 is slidably mounted in the valve body 6; the piston 40 is bowl-shaped, the bottom of which carries a cylindrical passage 43 defining annular edges, on either side of the bottom, the inner edge being designated by the reference 42; these flanges serve for centering a first compression spring 44 disposed axially between the piston 40 and the rod 1; the spring 44 bears on the rod 1 via the annular bearing surface 19 bordering a centering tail 45 extending the rod 1 downwards and consisting of four radial arms arranged in a cross; a second compression spring 41 is placed between the piston 40 and the bottom of the chamber 20.
- the channel 12 In the rest position, not shown, the channel 12 is blocked by the seal 4 and the small orifice 8 is blocked by the piston 40; in the position of figure 6, which shows the position occupied by the elements after the rod 1 has made a first stroke, the channel 12 is no longer in line with the seal 4 and the small orifice 8 is still closed by the piston 40; spraying is carried out according to the first mode; in the position shown in Figure 7, the channel 12 is still open, and the piston 40 no longer covers the small orifice 8; spraying is in the second mode; it will be understood that according to the relative stiffnesses of the springs 41 and 44, equal or different, the relative displacements of the rod 1 and of the piston 40 will be equal or different: the choice of these stiffnesses makes it possible to define the stroke of the rod 1 after which will change the spray mode.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Nozzles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT147391 | 1991-07-23 | ||
| AT1473/91 | 1991-07-23 | ||
| PCT/FR1992/000690 WO1993001996A1 (fr) | 1991-07-23 | 1992-07-16 | Recipient pulverisateur |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0548350A1 true EP0548350A1 (fr) | 1993-06-30 |
| EP0548350B1 EP0548350B1 (fr) | 1995-09-27 |
Family
ID=3514667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92916077A Expired - Lifetime EP0548350B1 (fr) | 1991-07-23 | 1992-07-16 | Recipient pulverisateur |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0548350B1 (fr) |
| DE (1) | DE69205132T2 (fr) |
| ES (1) | ES2077428T3 (fr) |
| WO (1) | WO1993001996A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2725182B1 (fr) * | 1994-09-30 | 1996-11-15 | Oreal | Valve de distribution et recipient distributeur equipe d'une valve |
| GB2526821B (en) | 2014-06-03 | 2016-04-27 | The Salford Valve Company | Valve assembly |
| CN118004590A (zh) * | 2024-03-21 | 2024-05-10 | 深圳市慧智慧科技有限公司 | 一种密封座及流体密封罐 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH438163A (de) * | 1963-04-04 | 1967-06-15 | Howard Green Edward | Aerosol-Sprühgerät |
| US3191816A (en) * | 1963-10-28 | 1965-06-29 | Shulton Inc | Fluid dispensing valve |
| US3285286A (en) * | 1963-11-08 | 1966-11-15 | Shulton Inc | Dispensing valve with consistency control |
| US3490651A (en) * | 1968-01-08 | 1970-01-20 | Abplanalp Robert H | Dispenser system for simultaneous dispensing of separately stored fluids |
| FR2229210A5 (en) * | 1973-05-10 | 1974-12-06 | Air Liquide | Aerosol for projecting liq. prods. - using surface tension to close conduit when not in use |
| US4211347A (en) * | 1978-12-22 | 1980-07-08 | Mildern William D | Valve |
-
1992
- 1992-07-16 DE DE69205132T patent/DE69205132T2/de not_active Expired - Fee Related
- 1992-07-16 WO PCT/FR1992/000690 patent/WO1993001996A1/fr not_active Ceased
- 1992-07-16 ES ES92916077T patent/ES2077428T3/es not_active Expired - Lifetime
- 1992-07-16 EP EP92916077A patent/EP0548350B1/fr not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9301996A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE69205132T2 (de) | 1996-06-20 |
| ES2077428T3 (es) | 1995-11-16 |
| WO1993001996A1 (fr) | 1993-02-04 |
| DE69205132D1 (de) | 1995-11-02 |
| EP0548350B1 (fr) | 1995-09-27 |
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