EP0592604B1 - Soupape amelioree pour aerosol a actionnement par inclinaison - Google Patents

Soupape amelioree pour aerosol a actionnement par inclinaison Download PDF

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Publication number
EP0592604B1
EP0592604B1 EP92916301A EP92916301A EP0592604B1 EP 0592604 B1 EP0592604 B1 EP 0592604B1 EP 92916301 A EP92916301 A EP 92916301A EP 92916301 A EP92916301 A EP 92916301A EP 0592604 B1 EP0592604 B1 EP 0592604B1
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EP
European Patent Office
Prior art keywords
valve
wall portion
valve body
valve stem
aerosol
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.)
Expired - Lifetime
Application number
EP92916301A
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German (de)
English (en)
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EP0592604A4 (en
EP0592604A1 (fr
Inventor
Robert Henry Abplanalp
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Individual
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Individual
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Publication of EP0592604A4 publication Critical patent/EP0592604A4/en
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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 or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/44—Valves specially adapted therefor; Regulating devices
    • B65D83/48—Lift valves, e.g. operated by push action

Definitions

  • This invention relates to a valve for a pressurized package commonly referred to as an aerosol package.
  • Aerosol packages usually comprise a valve unit situated in the neck of the container which is opened by finger pressure against an actuator disposed at one terminus of a valve stem.
  • the valve unit has a movable valve body and associated hollow valve stem which unseats from a gasket, thereby permitting flow of product into a hollow valve stem (product conduit).
  • valve stem With certain products, e.g. paints, it is desirable that the valve stem be separable from the valve body in order to clean the product conduit should drying and resultant clogging occur.
  • the valve stem at one end, is molded integral to the valve actuator to thereby permit its separation from the valve body by pulling on the actuator.
  • the valve stem mates with a movable valve body situated beneath a resilient gasket, the valve stem being passed through a central opening in the resilient gasket. The gasket seals the product discharge orifice in the valve stem when the valve is in a closed position. By depressing the valve stem, the product orifice in the stem is open to flow of product from the container.
  • the aforedescribed aerosol valve comprises a container closure, commonly called a mounting cup, which is clinched to the container bead.
  • a valve housing having a resilient gasket disposed atop thereof, which gasket forms a seal between the valve housing and the mounting cup.
  • a reciprocable valve closing/opening member comprising a valve body and valve stem, which body and stem have communicating passages for egress of the pressurized product to a discharge orifice situated in a finger depressible actuator.
  • the product orifice in the valve stem is formed by a radial pin extending laterally through the wall of the valve stem, a so-called “side action” molding operation.
  • the presence of the "side action” pin necessitates the removal of the pin before ejection of the molded part, with a consequent time delay in the molding operation.
  • the "side action” pin often breaks with consequent shutdown of the molding operation.
  • the central opening of the gasket seals radially against the product orifice in the valve stem.
  • This sealing of the valve stem orifice upon closure of the valve forecloses gravitational return of the product in the hollow valve stem from moving past the valve stem orifice with the often consequent result that residual product in the hollow valve stem drys and clogs the passage in the valve stem.
  • a "female" aerosol valve having a moveable, gasketed valve body-valve stem located within a valve housing.
  • the valve body has at least one upstanding wall defining a recess in the valve body with a slot extending from the top shoulder of the upstanding wall. The slot provides communication with the interior of the container when the valve is actuated.
  • the valve stem has a longitudinal opening therethrough and a member that frictionally and releasably engages within the valve body recess.
  • the valve stem also has an orifice aligned with the longitudinal opening of the valve stem and which communicates at one end with the slot in the recess of the valve body and at the other end with the orifice in the valve stem.
  • the central opening of the gasket seals the slot defined by the upstanding wall of the valve body when the valve is in a closed position.
  • the present invention improves upon the design of WO-A-88 04 266 and is also adapted for use as a tilt valve.
  • the aerosol valve unit of the present invention is defined in claim 1.
  • FIG 1 is a longitudinal sectional view of the aerosol valve of the present invention, in a closed position.
  • the mounting cup of the aerosol container shown partially cut away, is generally designated as 10.
  • Crimped to the mounting cup 10 is a valve housing 12 and a gasket 14.
  • Disposed within the housing 12 is the valve body 16 having a main portion 16c, an upstanding cylindrical wall 26 extending upward from the main portion 16c, and a lower portion 16a extending downward from the main portion 16c.
  • the main portion 16c and the upstanding cylindrical wall 26 have an inner cylindrical surface 22a defining a recess 22.
  • Figure 4 is a sectional view of the valve body 16, showing the main portion 16c, the upstanding cylindrical wall 26, the lower portion 16a and the recess 22.
  • a valve stem 20 is disposed within the recess 22 of the valve body 16.
  • the valve body is biased toward the gasket 14 by a spring 18.
  • the lower portion 16a of the valve body 16 is adapted to be engaged by the spring 18.
  • the spring 18 can engage an annular groove 90 as shown in Figures 1 and 4.
  • the outer wall 16b of the main portion 16c of the valve body 16 is preferably inwardly tapered toward the lower portion 16a of the valve body 16 while the interior wall 12a of the valve housing 12 preferably flares outward at its top. This provides space allowing for the rotation of the valve body 16 during tilt activation, which is discussed further, below.
  • a conventional dip tube 46 is shown attached to the bottom of the housing 12.
  • Upstanding cylindrical wall 26 defines the upper portion of the recess 22.
  • the top inner edge 26a of the upstanding cylindrical wall is chamfered to ease insertion of the valve stem 20 into the valve body 16.
  • the upstanding cylindrical wall 26 has a thin rectangular region 21a referred to as a thin region or thin skin.
  • the location of the thin skin 21a may be substantially uniform as shown in phantom in Figure 5.
  • the cross-section of the thin skin 21a is shown in Figure 4; its back portion is shown in Figure 6.
  • the thin skin 21a runs from the top shoulder 26b of the cylindrical wall 26, almost to its bottom. Beneath the thin skin 21a is a slot 21 passing through the cylindrical wall 26.
  • the slot 21 is defined by the thin skin 21a and the cylindrical wall 26.
  • the slot 21 is shown in phantom in Figure 5. See also Figures 4 and 6. Preferably, there is a second thin skin 21a and slot 21 on the opposite side of the cylindrical wall 26. See Figure 6. More than two slots is not preferred because it can weaken the cylindrical wall 26. These slots 21 allow for the passage of product into the valve body 16, as will be described below. Beneath the slots 21 are grooves 32 in the inner cylindrical surface 22a of the valve body 16, shown in Figures 4 and 6, for example.
  • Figure 7 is a top view of the valve body along line 7-7 of Figure 4, with the cylindrical wall 26, thin skins 21a and groove 32 identified.
  • the upper portion of the tapered valve body ends in an annular shoulder 40 which engages the gasket 14 when the valve is closed, as shown in Figure 1.
  • This shoulder 40 is preferably rounded at its top, as shown in Figure 4, to improve the seal with the gasket 14 when the valve is closed, as shown in Figure 1.
  • a first annular wall 40a preferably tapered toward the center of the valve body 16.
  • the first annular wall 40a intersects a second annular wall 40b which is perpendicular to the upstanding cylindrical wall 26. See Figure 7.
  • the first and second annular walls 40a, 40b, and the cylindrical wall 26 form an annular recess 40c which directs product towards the slots 21, as described below.
  • the bottom of the recess 22 of the valve body 16 preferably includes a circumferential groove 52, as shown in Figures 4 and 6, for example.
  • the lower cylindrical portion 64 of the valve stem is inserted into the circum-ferential groove 52, forming a swirl chamber 68.
  • the fit between the lower cylindrical portion 64 and circumferential groove 52 forms a tight seal between the valve body 16 and the valve stem 20. Therefore, product can only enter the swirl chamber 68 through the tangential openings 66.
  • the portion of the bottom of the recess 22 of the valve body 16 within the circumferential groove 52 forms the bottom 50 of the swirl chamber 68.
  • the use of a swirl chamber is preferred for enhanced spray characteristics, particularly with compressed gas propellant, as is described further below.
  • the tangential openings may be about 152 ⁇ m (6 ⁇ 10 -3 inch) wide and 254 ⁇ m (10 ⁇ 10 -3 inch) high. These dimensions may be varied dependent on the product and propellant.
  • Figure 12 shows another embodiment of the present invention, without the swirl chamber.
  • the valve body 16 is the same except there is no groove 52.
  • the valve stem 20 is the same except there is no lower cylindrical portion 64.
  • the valve stem 20 has an orifice 70 above the swirl chamber 68 which, in the preferred embodiment of the invention, acts as a product flow control orifice. Disposing the orifice 70 above the swirl chamber permits product in the valve stem on the discharge side of orifice 70 to back flow into the swirl chamber and thus product is less likely to clog the product passage in the valve stem. Still further, disposing the orifice 70 on the discharge side of the swirl chamber 68 can also create a residue of propellant in the swirl chamber upon closing of the aerosol valve, which residue will assist in purging the valve stem and actuator product passages of residual product to thereby avoid or reduce clogging.
  • the orifice may have a diameter of 330 ⁇ m (13 ⁇ 10 -3 inch), which can be varied dependent on the product and propellant used.
  • the recess 22 of the valve body 16 includes an annular protrusion 54.
  • the outer cylindrical portion 62 of the valve stem 20 preferably includes an annular flange 80.
  • the flange prevents excessive displacement of the gasket during actuation.
  • the shape of the annular recess 40c generally conforms to the shape of the flange 80.
  • a recess 75 is formed between the inner and outer cylindrical portions 60, 62 of the valve stem 20.
  • the recess has an annular shoulder 77 which connects the inner and outer cylindrical portions 60, 62, and against which the upstanding cylindrical wall 26 bottoms when the valve body 16 and valve stem 20 are in assembled relation.
  • the inner edge 82 of the outer cylindrical portion 62 of the valve stem 20 is tapered to ease insertion into the valve body 16.
  • An actuator button 85 is mounted on the upper portion of the valve stem 20, as shown in Figure 1.
  • An annular rib or barb 87 is formed on the valve stem 20, which rib 87 anchors the valve stem 20 to the actuator button and facilitates removal of the valve stem 20 from the valve body 16.
  • a tilt button 88 with an inclined surface 88a may also be provided for tilt actuation, as shown in Figure 3. The inclined surface 88a eases engagement and continued actuation in the tilt position during prolonged use.
  • a recess 89 may be provided at the bottom of the tilt button 88 so that the bottom of the button will not interfere with the pedestal of the mounting cup 10 during use.
  • the gasket 14 seals against the annular top shoulder 40 of the valve body 16 and the upstanding cylindrical wall 26 of the valve body 16 to prevent passage of product through the slot 21.
  • the tangential entrances 66 of the swirl chamber 68 impart a circular motion to the discharging product, and force the two product streams into each other. This causes a mechanical breakup of the product. Particles within the product stream are broken up and dissolved and the product stream is energized. This provides for a finer, drier spray.
  • the use of a swirl chamber is preferred to enhance spray characteristics, particularly if the propellant used is compressed gas. It is believed that satisfactory spray characteristics can be maintained with a compressed gas propellant as the product is dispensed in periodic use, without the use of vapor taps. Vapor taps can use up the available propellant before the product is fully dispensed.
  • FIG. 3 Operation as a tilt action valve is shown in Figure 3.
  • the tilt button 88 is depressed forward and downward. This disengages the front portion of the shoulder 40 from the gasket 14, as the valve body-valve stem rotates forward. Product passes over the shoulder 40, through slot 21 to be discharged, as described above with respect to Figure 2.
  • the tapered shape of the valve body 16 and the flared interior wall 12a of the valve housing provides space for the rotational movement of the valve body 16 during tilt actuation.
  • the container can come packaged as either a conventional or tilt action container.
  • An extra button can be included in the packaging to provide for alternative use. The buttons can be easily changed.
  • the use of the thin skin enables molding of the valve body without the use of "side action” pins.
  • the core pin used in molding the valve body 16 has a pair of extended sections on opposite sides, which decreases the distance between the core pin and the mold cavity. Plastic filling in this region forms the thin skin 21a. Even greater extensions lie beneath the extended sections. These extensions contact the outer wall of the mold cavity, preventing the collection of plastic. The slots are formed in these regions.
  • the thin skin is pliable enough after molding to allow for easy removal of the core pin. Therefore, no "side action" pins are required to form the slots 21. As discussed above in the Background of the Invention, "side action” pins can slow the molding process.
  • the skin is preferably about 102 ⁇ m (4 ⁇ 10 -3 inch) thick, which allows for easy removal of the core pin and provides sufficient reinforcement during tilt actuation.
  • the cylindrical wall 26 is approximately 20 thousandths of an inch thick.
  • the slot 21 may be 0.51 mm X 0.51 mm (0.020 inches X 0.020 inches).
  • a sub-assembly comprising the valve stem, valve body, spring and gasket is initially made.
  • Such a sub-assembly properly orients and maintains the position of the gasket relative to the valve body, thereby enabling rapid assembly of the sub-assembly and other valve components without risk of dislodging the orientation of the gasket to the other components prior to permanent positioning of the gasket through crimping of the valve to the mounting cup.
  • valve stem-valve body fitment portions that facilitates disposition and positional stabilization of the gasket onto the valve body is best shown in Figure 8.
  • gasket 14 is passed over the outside surface of valve stem 20 and ultimately seated on the annular shoulder 40 of the valve body 16.
  • the height of the cylindrical wall 26 is preferably greater than the gasket thickness, to prevent the top shoulder of the cylindrical wall 26 from passing beneath the gasket 14 during pressure filling of the container with propellant.

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  • 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

Dans une soupape pour aérosol comprenant un capuchon de montage (10), un joint d'étanchéité (14) doté d'une ouverture centrale, un logement de soupape (12), une tige de soupape (20) et un corps de soupape (16), la tige de soupape (20) et le corps de soupape (16) se déplaçant au sein du logement de soupape (12) en réponse à une pression appliquée sur la tige de soupape (20), le corps de soupape (16) possède une paroi haute cylindrique (26) qui définit un évidement. Une fente qui s'étend à travers la paroi (26) est définie par ladite paroi et une pellicule mince (21a). La fente (21) communique avec l'intérieur du récipient lorsque la soupape est actionnée. Une chambre de tourbillonnement (68) peut être située au fond du corps de soupape (16). Ladite soupape peut être configurée en vue d'être actionnée par inclinaison.

Claims (13)

  1. Unité de soupape pour aérosol comprenant un capuchon de montage (10), un corps de soupape (12) serti à l'intérieur d'une partie de base du capuchon de montage (10), un ensemble obturateur/tige de soupape (16, 20) placé à l'intérieur du corps de soupape (12) de manière à ce que l'ensemble (16, 20) puisse se déplacer dans le corps de soupape (12) entre une position de fermeture de la soupape et une position d'ouverture de la soupape, et une garniture d'étanchéité (14) comportant un orifice central aligné avec un orifice correspondant dudit capuchon de montage (10) afin de recevoir la tige de soupape (20),
    dans laquelle l'obturateur (16) comprend un composant principal (16c) qui comporte un épaulement annulaire supérieur (40) destiné à assurer l'étanchéité contre la garniture (14), une partie de paroi verticale cylindrique (26) située radialement à l'intérieur dudit épaulement (40) et s'étendant depuis le haut du composant principal (16c) de l'obturateur, et une cavité (40c) située entre ledit épaulement (40) et ladite partie de paroi verticale (26),
    et dans laquelle la tige de soupape (20) comprend une partie de paroi extérieure (62) qui coopère avec frottements et de façon libérable avec l'extérieur de la partie de paroi verticale (26) de l'obturateur (16) et s'étend dans la cavité (40c) de l'obturateur en-dessous de la garniture (14), la tige de soupape (20) comportant une ouverture (63) suivant son axe longitudinal et un orifice (70) qui communique avec ladite cavité (40c) par au moins une fente (21) ménagée dans la partie de paroi verticale (26),
    caractérisée en ce que ladite partie de paroi verticale (26) comprend une paroi extérieure continue et une surface intérieure (22a) avec au moins une région mince (21a) qui s'étend de l'épaulement supérieur (26b) de la partie de paroi verticale (26) à la base de la partie de paroi verticale (26) et se termine dans ladite fente (21) ménagée dans la partie de paroi verticale (26), la fente (21) communiquant avec l'intérieur du récipient quand la soupape est actionnée.
  2. Unité de soupape pour aérosol selon la revendication 1, caractérisée en ce que la région mince (21a) est située à proximité du diamètre extérieur de la partie de paroi verticale (26).
  3. Unité de soupape pour aérosol selon la revendication 1 ou 2, caractérisée en ce que la région mince (21a) a une épaisseur sensiblement uniforme.
  4. Unité de soupape pour aérosol selon l'une quelconque des revendications 1 à 3, caractérisée en ce que l'épaulement terminal (26b) de la partie de paroi verticale (26) comporte un chanfrein (26a) pour faciliter l'insertion de la tige de soupape (20) dans l'obturateur (16).
  5. Unité de soupape pour aérosol selon l'une quelconque des revendications 1 à 4, caractérisée en ce que la tige de soupape (20) présente un rebord annulaire (80) s'étendant radialement sur l'extrémité inférieure de sa partie de paroi extérieure (62).
  6. Unité de soupape pour aérosol selon la revendication 5, caractérisée en ce que le rebord annulaire (80) épouse globalement la forme de la cavité annulaire (40c) de l'obturateur (16) afin de définir, en partie, un trajet d'écoulement vers la fente (21) dans l'obturateur.
  7. Unité de soupape pour aérosol selon l'une quelconque des revendications 1 à 6, caractérisée en ce que la surface intérieure (22a) de la partie de paroi verticale (26) de l'obturateur (16) comporte au moins une protubérance annulaire (54) et la surface extérieure d'une partie de paroi intérieure (60) de la tige de soupape (20) destinée à se placer dans la partie de paroi verticale (26) de l'obturateur comporte au moins une encoche annulaire destinée à recevoir la protubérance annulaire (54) de l'obturateur (16) et à bloquer ainsi en position relative l'obturateur (16) et la tige de soupape (20).
  8. Unité de soupape pour aérosol selon l'une quelconque des revendications 1 à 7, caractérisée en ce que la partie d'épaulement annulaire (40), qui porte contre la garniture (14) quand la soupape est au repos, est disposée pour être au moins partiellement dégagée de la garniture (14) par un actionnement vertical ou de basculement d'un bouton d'actionnement (85, 88), ce qui permet au produit de passer sur la partie de l'épaulement (40) du composant principal (16c) de l'obturateur (16) qui est dégagée de la garniture (14) puis à travers la cavité (40c) de l'obturateur et l'ouverture (63) de la tige de soupape pour être expulsé.
  9. Unité de soupape pour aérosol selon l'une quelconque des revendications 1 à 8, caractérisée en ce qu'elle comporte une rainure (32) dans la face intérieure (22a) du composant principal (16c) de l'obturateur, qui s'étend vers le bas depuis la fente (21) dans la partie de paroi verticale (26) et qui communique avec la fente (21) dans la partie de paroi verticale (26) et l'orifice (70) dans la tige de soupape (20).
  10. Unité de soupape pour aérosol selon l'une quelconque des revendications 7 à 9, caractérisée en ce que la partie de paroi intérieure (60) de la tige de soupape (20) s'étend dans un évidement (52) de la surface inférieure du composant principal (16c) de l'obturateur et dans l'orifice (70) de la tige de soupape (20) placé pour être contigu et au-dessus de la surface inférieure du composant principal (16c) de l'obturateur.
  11. Unité de soupape pour aérosol selon l'une quelconque des revendications 1 à 10, caractérisée en ce que le composant principal (16c) de l'obturateur est conique vers l'intérieur en direction de son extrémité inférieure et dans laquelle le corps de soupape (16) a un diamètre intérieur supérieur et un diamètre intérieur inférieur, le diamètre intérieur supérieur étant plus grand que le diamètre intérieur inférieur.
  12. Unité de soupape pour aérosol selon l'une quelconque des revendications 1 à 11, caractérisée en ce que la tige de soupape (20) comporte une partie de paroi intérieure (60) parallèle et intérieure à la partie de paroi (62) qui coopère avec frottements et de façon libérable avec la partie de paroi verticale (26) de l'obturateur (16), laquelle partie de paroi intérieure (60) se termine par une partie apte à être reçue dans le fond de l'évidement (52) ménagé dans la surface inférieure du composant principal (16c) de l'obturateur, l'ouverture longitudinale (63) de la tige de soupape (20) traversant la partie de paroi intérieure (60) et ladite ouverture (63) communiquant en l'extrémité de la partie de paroi intérieure (60) placée dans l'évidement (52) de l'obturateur avec une chambre de tourbillonnement (68) alimentée tangentiellement.
  13. Unité de soupape pour aérosol selon la revendication 12, caractérisée en ce que la chambre de tourbillonnement (68) comporte une alimentation tangentielle multiple (66).
EP92916301A 1991-07-02 1992-07-02 Soupape amelioree pour aerosol a actionnement par inclinaison Expired - Lifetime EP0592604B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US72465791A 1991-07-02 1991-07-02
PCT/US1992/005586 WO1993001109A1 (fr) 1991-07-02 1992-07-02 Soupape amelioree pour aerosol a actionnement par inclinaison
US724657 2000-11-28

Publications (3)

Publication Number Publication Date
EP0592604A1 EP0592604A1 (fr) 1994-04-20
EP0592604A4 EP0592604A4 (en) 1994-06-01
EP0592604B1 true EP0592604B1 (fr) 1997-02-26

Family

ID=24911323

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92916301A Expired - Lifetime EP0592604B1 (fr) 1991-07-02 1992-07-02 Soupape amelioree pour aerosol a actionnement par inclinaison

Country Status (13)

Country Link
EP (1) EP0592604B1 (fr)
JP (1) JP3458231B2 (fr)
CN (1) CN1042500C (fr)
AU (1) AU666126B2 (fr)
CA (1) CA2112568C (fr)
DE (1) DE69217661T2 (fr)
ES (1) ES2097920T3 (fr)
GB (1) GB2257474B (fr)
MX (1) MX9203871A (fr)
NZ (1) NZ243264A (fr)
PT (1) PT100649B (fr)
WO (1) WO1993001109A1 (fr)
ZA (1) ZA924652B (fr)

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DE19612702A1 (de) * 1996-03-29 1997-10-02 Coster Tecnologie Speciali Spa Ventil für die Abgabe von unter Druck stehenden Fluiden
US5906046A (en) * 1997-07-31 1999-05-25 Precision Valve Corporation Aerosol tilt valve and method of forming same
FR2864176B1 (fr) * 2003-12-22 2008-04-25 Valois Sas Pompe de distribution de produit fluide.
JP4789774B2 (ja) * 2006-10-24 2011-10-12 東洋エアゾール工業株式会社 エアゾール装置
BR112012028024A2 (pt) * 2010-05-05 2016-09-13 Joseph Co Int Inc válvula de alívio de sobrepressão.
CA2905990A1 (fr) * 2013-03-15 2014-09-25 Precision Valve Corporation Soupape d'aerosol ayant des trajets d'ecoulements definis
CN106513200B (zh) * 2014-12-22 2019-02-19 徐龙 具有连续喷雾功能且灌装方便的喷雾阀及其工作方法
CN114632642B (zh) * 2020-11-05 2023-12-01 中山高林美包装科技有限公司 一种双重雾化型气雾阀

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US3053459A (en) * 1960-03-28 1962-09-11 Drackett Co Liquid dispenser
US3166250A (en) * 1961-03-29 1965-01-19 Uni Valve Inc Aerosol valve assembly
US3547405A (en) * 1969-02-20 1970-12-15 Ronald F Ewald Tilt valve
US3658294A (en) * 1970-02-16 1972-04-25 Ronald F Ewald Tilt valve
US3731847A (en) * 1971-06-01 1973-05-08 Gillette Co Plural compartment pressurized dispensing package
CH591998A5 (fr) * 1974-12-20 1977-10-14 Green Edward Howard
US5027985A (en) * 1986-12-03 1991-07-02 Abplanalp Robert H Aerosol valve
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GB8917285D0 (en) * 1989-07-28 1989-09-13 Harris Pharma Ltd A valve for an aerosol dispenser

Also Published As

Publication number Publication date
CN1042500C (zh) 1999-03-17
PT100649B (pt) 1999-06-30
CA2112568A1 (fr) 1993-01-21
AU2371492A (en) 1993-02-11
DE69217661T2 (de) 1997-09-18
GB2257474A (en) 1993-01-13
AU666126B2 (en) 1996-02-01
EP0592604A4 (en) 1994-06-01
CA2112568C (fr) 2006-10-03
DE69217661D1 (de) 1997-04-03
ZA924652B (en) 1993-03-22
MX9203871A (es) 1993-01-01
JP3458231B2 (ja) 2003-10-20
NZ243264A (en) 1995-10-26
GB9213791D0 (en) 1992-08-12
CN1070355A (zh) 1993-03-31
EP0592604A1 (fr) 1994-04-20
GB2257474B (en) 1995-04-05
JPH06508810A (ja) 1994-10-06
PT100649A (pt) 1994-05-31
WO1993001109A1 (fr) 1993-01-21
ES2097920T3 (es) 1997-04-16

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