WO2017204828A1 - Buse anti-bouchage, actionneur et ensemble de vannes servant à des systèmes de vannes sur un sac ou de vannes sur une boîte - Google Patents

Buse anti-bouchage, actionneur et ensemble de vannes servant à des systèmes de vannes sur un sac ou de vannes sur une boîte Download PDF

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Publication number
WO2017204828A1
WO2017204828A1 PCT/US2016/034693 US2016034693W WO2017204828A1 WO 2017204828 A1 WO2017204828 A1 WO 2017204828A1 US 2016034693 W US2016034693 W US 2016034693W WO 2017204828 A1 WO2017204828 A1 WO 2017204828A1
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WO
WIPO (PCT)
Prior art keywords
valve
actuator
stem
product
nozzle
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.)
Ceased
Application number
PCT/US2016/034693
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English (en)
Inventor
William Sydney Blake
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Individual
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Individual
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Priority to PCT/US2016/034693 priority Critical patent/WO2017204828A1/fr
Publication of WO2017204828A1 publication Critical patent/WO2017204828A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/60—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated
    • B65D83/64—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/12—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means capable of producing different kinds of discharge, e.g. either jet or spray
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3468—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with means for controlling the flow of liquid entering or leaving the swirl chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B05B7/1209—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means for each liquid or other fluent material being manual and interdependent
    • B05B7/1245—A gas valve being opened before a liquid valve
    • 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
    • B65D83/34—Cleaning or preventing clogging of the discharge passage
    • B65D83/345—Anti-clogging means for outlets
    • 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
    • B65D83/58—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with separate inlets for contents and propellant feeding into a duct upstream of the dispensing valve
    • 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
    • B65D83/60—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated
    • B65D83/62—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by membranes, bags or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3436—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a plane perpendicular to the outlet axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids

Definitions

  • the present invention relates to systems for dispensing product under pressure and to a method of manufacturing them.
  • the invention uses compressed air or other gas to dispense product under pressure without causing detriment to the environment.
  • the invention is a non-clogging valve assembly usable with bag-on-valve or piston-driven-canister aerosol systems and is suitable to use for dispensing paints, liquid adhesives, starches, hair sprays and any product that has clogging issues, as well as products that need a preservative.
  • the pressurizing gas and product remain separate until they are mixed at the nozzle.
  • U.S. Pat. No. 5,198,774 to Lund et al. discloses a combined lock and anti-clog actuator.
  • the locked position cooperates with an anti- clog member, which has a nozzle seal for inhibiting the clogging of the product within the nozzle.
  • U.S Pat. No. 5,894,964 to Barnes et al. discloses an inner actuator chamber arranged in a way designed to minimize blockage of the actuator.
  • U. S. Pat. No. 5,480,095 to Stevenson et al. shows an actuator that attenuates the accumulation of solidified sprayer fluid.
  • U.S. Pat. No. 5,687,877 to Smolen Jr. discloses a pump dispenser with a check valve that moves forward during the pressure stroke and then closes and pulls liquid back during the suction stroke, minimizing blockage.
  • U. S. Pat. No. 5,358,149 to O'Neill discloses an anti-clogging means similar to U. S. Pat. No. 5,687,877 to Smolen, Jr.
  • U. S. Pat. No. 4,982,900 to Blake discloses a trigger pump sprayer with several nose piece valve configurations.
  • U. S. Pat. No. 5,855,322 to Py discloses a one-way valve system that utilizes a swirl chamber with a peripherally deformed expandable outlet flex valve means as part of a pouch reservoir system, in a sealed inclusive assembly.
  • U. S. Pat. No. 5,110,052 to Graf et al. discloses a pump means that employs air assist at the nozzle and requires venting.
  • U. S. Pat. No. 4,057,176 to Horvath discloses a pump means similar to that in Graf et al. in that it provides air assist to the nozzle and requires venting.
  • the present invention is a non-clog actuator and valve assembly that does not use embedded propellants that are harmful to the environment. It is usable in bag-on-valve or can-on-valve systems and offers air assist at the nozzle, with a positive shutoff. It utilizes a very low pressure to dispense product so that it does not require the use of harmful high pressure containers with the propellant embedded within the product. [00020]
  • the non-clog actuator and valve assembly of the invention employs a very low pressure gas driven system that can be manufactured economically while still achieving performance comparable to that provided by current aerosol systems.
  • the actuator and valve assembly of the invention utilizes a low pressure source that provides an air assist at the nozzle for atomization and to prevent clogging. It offers the option of employing a pressure vessel other than a metal type, thereby permitting various shapes to be used to enhance aesthetic considerations over awide range of products.
  • the present invention provides an economic edge in shipping, storing and shelf life, allows the market place to retain the conveniences of aerosols over pumps and other alternatives, and enables the use of innovative designs that are more flexible to handle a wider range of product viscosities.
  • the dual functioning actuator and valve assembly of the invention keeps the product to be dispensed separate from the pressure source until they are mixed at the nozzle, and enables various different nozzles to be used, such as, for example, those disclosed in US patents 6,609,666, 6,543,703 and 4,982,900.
  • the invention is compatible with a plurality of bag-on-valve or piston driven can-on-valve systems that allow for innovative design, especially in the categories of custom low pressure plastic vessels.
  • the invention permits selection of various gases to be used as pressure sources to propel the product via a pressurized bag or a piston within a cylinder, and isolates the pressure gas from the product until they are mixed or combined at the actuator nozzle.
  • the pressure gas and product are conveyed from their respective sources to the nozzle via two separate sequential paths within the actuator assembly.
  • the different components that make up each assembly can have innovative geometry relating to the flow paths, such as, for example, by adjusting their cross-sectional areas.
  • the invention can be used for dispensing products that typically require the use of embedded propellants, such as, for example, mousse, shaving creams, liquid gels, certain food groups, and any product that tends to cause clogging.
  • embedded propellants such as, for example, mousse, shaving creams, liquid gels, certain food groups, and any product that tends to cause clogging.
  • the invention does not require venting and does not use typical aerosol propellants that are harmful to the environment.
  • FIG. 1 is a longitudinal cross-sectional view of the preferred embodiment of the combined actuator and valve assembly at rest without a product bag or cylinder being shown in place.
  • FIG. 2 is a slightly enlarged longitudinal cross-sectional view of the actuator and valve assembly of FIG. 1, shown in the filling and/or dispensing mode.
  • FIG. 3 is a longitudinal cross sectional view showing the valve assembly of FIG. 1 without the actuator assembly being shown in place.
  • FIG. 4 is a view in side elevation, with portions shown in section, of a bag- on-valve dispensing system, showing the ratio of air to product, which may vary with different products.
  • FIG. 5 is an enlarged fragmentary partial cross-sectional view of a valve cup and valve housing, with the bag location ferruledout.
  • FIG. 6 is a further enlarged fragmentary longitudinal sectional view of the system shown in FIG. 3, but with a piston driven can-on-valve attachment to the valve housing and an insert molded-on-cup ferrule configuration as well as a customized container contour.
  • FIG. 7 is a greatly enlarged cross- sectional view of an actuator assembly having one example of a mechanically adjustable nozzle means that can be used with the system shown in FIGS. 3 and 6.
  • FIG. 8 is an end view showing the adjustable eye brow mechanical breakup feature used in FIG. 7.
  • FIG. 9 is a fragmentary view in section of a modification of the nozzle assembly shown in FIG. 8 and incorporating some of the features of the nozzle assembly disclosed in US patent 4,982.900.
  • FIG. 10 is a partial end view looking in the direction of arrow 10 in FIG. 9.
  • FIG. 11 is cross sectional assembly view illustrating another means as shown in patent 6,543,703 that can be used in the assembly of FIG.7.
  • FIG. 12 is a cross sectional view showing only the insert portion of FIG 11.
  • FIG. 13 is an enlarged fragmentary end view of the eye brow configuration taken in the direction of arrow 13 in FIG. 11.
  • FIG. 14 is a sectional view of the air assist vortex that could be threaded or snapped onto the system shown in FIGS. 1 or 7.
  • FIG. 15 is a view looking in the direction of the arrow 15 in FIG. 14 but with the threads omitted to emphasize the vortex channels.
  • FIG. 16 is a view looking in the direction or arrow 16 in FIG. 18, but with the vortex channels and the threads shown.
  • FIG. 17 is an end view looking in the direction of arrow 17 in FIGS. 14 and 18.
  • FIG. 18 is a side view in elevation of the air assist vortex shown in FIGS.
  • Figs. 19 and 20 are isometric views of the mechanical breakup unit (MBU) insert shown in FIG. 24.
  • MBU mechanical breakup unit
  • FIG. 21 is the same as FIG. 16 except that it has no vortex channels as in FIGS. 15 or 16.
  • FIG. 22 is cross sectional view of a test module for testing the system shown in FIGS. 1 through 21.
  • FIG. 23 is a blowup detail of the circled area in FIG. 22, without the
  • FIG. 24 is a blowup detail similar to FIG. 23, but with the mechanical breakup (MBU) fitment of FIGS. 19 and 20 in place.
  • MBU mechanical breakup
  • FIG. 25a is an isometric view of the back housing, or housing bottom cap, in the test module assembly shown in FIG. 22.
  • FIG. 25b is a side view in elevation of the back housing of FIG. 25a.
  • FIG. 25c is a longitudinal sectional view taken along line 25c-25c in FIG.
  • FIG. 25d is an end view taken in the direction of the arrow 25d in FIG. 25b.
  • FIG. 25e is an end view taken in the direction of the arrow 25e in FIG. 25b.
  • FIG. 26a is an isometric view of the housing bottom cap in the test module assembly shown in FIG. 22.
  • FIG. 26b is a side view in elevation of the housing cap of FIG. 26a.
  • FIG. 26c is a longitudinal sectional view taken along line 26c-26c in FIG. 26b.
  • FIG. 26d is an end view taken in the direction of the arrow 26d in FIG. 26b.
  • FIG. 26e is an end view taken in the direction of the arrow 26e in FIG. 26b.
  • FIG. 27a is a top isometric view of the non-clog housing in the test module assembly shown in FIG. 22.
  • FIG. 27b is a bottom isometric view of the non-clog housing.
  • FIG. 27c is a side elevation view of the non-clog housing.
  • FIG. 27d is a longitudinal sectional view taken along line 27d-27d in FIG.
  • FIG. 27e is an end view taken in the direction of the arrow 27e in FIG. 27c.
  • FIG. 27f is an end view taken in the direction of the arrow 27f in FIG. 27c.
  • FIG. 28a is a bottom isometric view of the non-clog tip in the assembly of FIG. 22.
  • FIG. 28b is a top isometric view of the non-clog tip.
  • FIG. 28c is a side elevation view of the tip of FIG. 28a.
  • FIG. 28d is a side elevation view of the tip, taken at 90 to the view in FIG.
  • FIG. 28e is an end view of the tip, taken in the direction of the arrow 28e in FIG. 28d.
  • FIG. 28f is a longitudinal sectional view taken along line 28f-28f in FIG.
  • FIG. 28g is a longitudinal sectional view taken along line 28g-28g in FIG. 28e.
  • Fig. 28h is an end view of the tip, taken in the direction of the arrow 28h in Fig. 28d.
  • Fig. 29a is a top isometric view of the spray housing in the test module shown in FIG. 22.
  • FIG. 29b is a side elevation of the spray housing of FIG. 29a.
  • FIG. 29c is a longitudinal sectional view taken along line 29c-29C in FIG.
  • FIG. 29d is an end view taken in the direction of the arrow 29d in FIG. 29b
  • FIG. 29e is an end view taken in the direction of the arrow 29e in FIG. 29b.
  • FIG. 30a is a side view in elevation of the cylinder in the test module assembly of FIG. 22.
  • FIG. 30b is a longitudinal sectional view taken along line 30b-30b in FIG.
  • FIG. 30c is an end view of the cylinder of FIG. 30a.
  • the invention is a dual function aerosol valve system, comprising:
  • valve cup having means for attachment to a container holding a pressurized gas propellant and a product to be dispensed;
  • valve housing having an upper end and a lower end and assembled at its upper end to said valve cup and depending therefrom so that said valve housing extends into a container when said valve run is assembled tn a container, said valve housing having a tubular side wall with an inner surface and an upper end and a lower end, the lower end of said hollow interior defining a first product flow path, wherein said valve housing is constructed so that a bag-on-valve system or to a piston system can be applied to it;
  • a first stem valve having upper and lower ends and a tubular side wall with a hollow interior and an inner surface, said first stem valve being reciprocal in the valve housing and defining between it and the valve housing upper end a first propellant flow path, said first stem valve side wall being slidable within and sealed relative to said first seal means;
  • a second stem valve coaxially received within the hollow interior of said first stem valve and being free of attachment to said first stem valve, said second stem valve having upper and lower ends and a tubular side wall with a hollow interior defining a second product flow path, and the upper ends of said first and second stem valves defining between them a second propellant flow path;
  • the actuator defines a propellant flow path extending from said second propellant flow path to said nozzle means, and a product flow path extending from said second product flow path to said nozzle means, said propellant and product remaining separate until they reach the nozzle means where they are mixed and dispensed as a spray.
  • the first and second stem valves are attached to said actuator so they reciprocate in unison when said actuator is reciprocated and the first stem valve has a downwardly facing first shoulder on its inner surface.
  • the valve housing has an upwardly facing second shoulder on its inner surface at a location between said first product flow path and said first propellant flow path, and the spring means is engaged between said first and second shoulders to bias said stem valves and actuator upwardly relative to said valve housing and valve cup.
  • the first shoulder defines a center opening in said first stem valve
  • the second shoulder defines a center opening in said valve housing
  • the lower end of said second stem valve has a reduced diameter relative to the upper end thereof, said reduced diameter lower end extending through the center openings defined by said shoulders.
  • a plurality of upstanding retaining nibs are formed on said second shoulder, and the second stem valve lower end has a radially enlarged head, said nibs being engaged behind said head to retain said second stem valve in said valve housing against the bias of said spring means.
  • the second seal means comprises an O-ring seal engaged around said lower end of said second stem valve at said enlarged head
  • the first seal means comprises a diaphragm seal gasket compressed between the upper end of said valve housing and said valve cup.
  • the valve cup has an upstanding central pedestal with a central opening therethrough, and said valve housing is secured to said valve cup below and in alignment with said central opening.
  • product to be dispensed is contained within a bag attached to said valve housing.
  • a can-on-valve system can be used, wherein the product is in a can with a piston in the can for pushing the product out when the valve is opened.
  • the lower end of said valve housing is open for flow of product axially into said first product flow path, and the upper ends of said first and second stem valves open axially upwardly through the upper end of said valve housing, said second propellant flow path and said second product flow path opening axially upwardly through said open upper ends of said first and second stem valves.
  • the actuator comprises an actuator base having depending tubular projections attached axially with the open upper ends of said first and second stem valves, said product flow path and said propellant flow path in said actuator extending upwardly through said projections to lateral product and propellant flow paths extending forwardly through said actuator base to said nozzle means.
  • the nozzle means comprises a generally cup-shaped aeration fitment rotatable relative to said actuator base but constrained against axial movement relative thereto, said aeration fitment having a side wall with an open end secured to a forward lateral side of said actuator base in circumscribing relationship to said product and propellant flow paths, and an end wall spaced forwardly of said actuator base, said end wall having a central opening therethrough.
  • a generally cup-shaped threaded sleeve is assembled to said actuator base coaxially within said aeration fitment and is rotatable with said aeration fitment but constrained against axial movement relative to said actuator base, said sleeve having a cylindrical side wall with internal threads and an open end at said actuator base and a forward wall disposed adjacent to and behind the end wall of said aeration fitment, said forward wall having a discharge orifice in alignment with the central opening through the end wall of said aeration fitment.
  • An adjustable nozzle is disposed coaxially within said threaded sleeve and is constrained against rotational movement relative to said actuator base but is movable axially relative to said actuator base.
  • the nozzle has external threads engaged with said internal threads in said threaded sleeve so that rotation of said sleeve causes axial movement of said nozzle toward and away from said discharge orifice in the forward wall of said sleeve, said nozzle having a center post that extends forwardly to adjacent said discharge orifice in said forward wall of said threaded sleeve, whereby axial movement of said nozzle adjusts the position of said post relative to said discharge orifice to adjust the spray pattern of product discharged through said discharge orifice.
  • a propellant flow path is defined between the aeration fitment side wall and the threaded sleeve side wall and between said aeration fitment end wall and said threaded sleeve forward wall, and the adjustable nozzle defines a product flow path extending through a center portion thereof around said center post to the discharge orifice in the forward wall of said threaded sleeve.
  • valve cup is made of metal material, and in other embodiments it can be made of different materials to accommodate the valve assembly and different container neck finishes of a container to which said valve assembly is to be secured.
  • the actuator assembly 10 provides two paths, an air path 10a and a product path lOp, which come together at the nozzle 10 ⁇ and insert lOi, creating a spray.
  • valve assembly 11 Below the actuator assembly there is a valve assembly 11.
  • valve cup 11c shown before crimping which takes place at assembly.
  • the valve cup 11c has an upstanding central pedestal lip which houses a valve seal gasket llsg that seals against the upper portion of the valve housing llvh.
  • Two valve stems are reciprocable in the valve housing, one being an air valve stem llavs and the other being a product valve stem llvps.
  • the air valve stem and product valve stem operate sequentially when the actuator assembly 10 is depressed against the spring lis that fits between the valve housing floor pocket llvhf and the shoulder llvs of the air valve stem llavs.
  • the spring lis normally biases the valve stems to the sealed position as shown in FIG. 1. In the sealed position, pressure orifice llpr in the side of the valve housing llvh is closed, and in the unsealed position as shown in FIG. 2, pressure orifice llpr is open.
  • a set of retaining nibs llrn on the inner surface of the valve housing llvh are spaced around the lower end of product valve stem llvps for cooperation with an O-ring llor seated in an O-ring race llorr in the base of the product valve stem llvps to prevent the product valve stem from being withdrawn up through the opening defined by seat llwd.
  • the O-ring llor seals within the walls of the diameter llwd beneath the retainer nibs llrn.
  • valve air path llvap is supplied through air path orifice llapo in the side of air valve stem llavs and the valve product path llvpp is supplied through product feed orifice llpo in the side of the air valve stem llavs.
  • the system allows for separation of product and pressurizing gas and maintains them separate until both meet at the nozzle, at which time product is mixed with air at the orifice and the mixture is dispensed as a spray.
  • the system requires a very low pressure, which enables a much lower pressure vessel to be employed than in conventional systems while obtaining equivalent spray patterns to conventional aerosol dispensers.
  • FIG. 3 shows the system of FIGS. 1 and 2 without the actuator assembly 10.
  • FIG. 4 shows the general arrangement for a bag-on- valve system that would be suited for the present invention, wherein pressurizing gas CA is in the space surrounding a bag containing product P.
  • FIG. 5 is an enlarged fragmentary view of how a bag can be applied to a valve assembly as depicted in FIG. 4.
  • Other arrangements could be employed, such as a piston reciprocable in a can or container, described below.
  • FIG. 6 illustrates an embodiment wherein a piston driven cylinder-on-can is employed in lieu of the bag-on- valve of FIGS. 4 and 5.
  • a piston P within a cylinder C is employed within a custom container CC.
  • This arrangement may be adapted to the valve cup in two ways. One way is by a conventional crimp on a valve cup or, as shown in this FIG., by a crimp on an insert molded valve cup IM and/or on the valve cup pedestal CP that could be insert molded as a custom means that accommodates a complemental finish to be injection blow molded. Finishes could be crimped, solvent or sonic welded assemblies.
  • a spring S is used to move the piston P upwards for pushing the product into the dual valve housing DVH.
  • a one-way valve OWV located at the base of the product cylinder C is not shown but an arrow points toward where the one-way valve is located. This valve is used to facilitate the pre-charged air cycle of the container POMC before product is filled into the product chamber above the piston P.
  • the one-way valve allows the pressure within the product chamber PC to be employed as an effective portion of the initial preloaded air pressure before product is introduced into the product chamber.
  • FIGS. 7 and 8 show an actuator assembly 10' with an adjustable nozzle AN engaged within a threaded sleeve TS that is coupled to an aerating fitment AF
  • An air path 10a' and a product path lOp' are formed in the base AB for separately conveying product and pressurized air to the nozzle.
  • the fitment AF is attached to the base AB so that it can rotate relative to the base but cannot move axially relative to it.
  • the sleeve TS and aerating fitment AF have interengaged guide ribs ATS and AFgr to transmit rotational movement of the fitment AF to the sleeve TS.
  • the adjustable nozzle AN has a threaded outer surface 10s' that interfaces with a threaded inner surface Tsi of the sleeve TS.
  • Guide ribs TSgr on the adjustable nozzle AN are engaged with anti-rotational ribs ABarr within the actuator base AB to prevent rotation of the nozzle AN but permit axial movement of it relative to the base when the aeration fitment AF and sleeve TS are rotated.
  • the anti-rotational ribs AFgr engage slots ATs within a flange ATf at the leading edge of the threaded sleeve TS, and the anti- rotational ribs TSgr extending from the base of the adjustable nozzle AN engage ribs ABarr on the base AB to restrain the nozzle AN from turning, thereby causing the nozzle to move along the threaded interface TSi between it and sleeve TS, thus causing the probe P to move in and out of the vortex eyebrows ve, allowing for an adjustable spray.
  • An internal sleeve bore lO'sb within nozzle AN works in conjunction with a sliding sealing bead Tsb on a central part of threaded sleeve TS to constrain flow of product to the space between post P and bore lO'sb as the product moves from product path lOp' to vortex eyebrows ve.
  • An air inlet orifice apo within the actuator base AB supplies air through angular slots TSas into the orifice pocket TSop of the aeration fitment AF.
  • a sealing flange sf within the actuator base AB rides within a second bore ANsb at the trailing edge portion of the actuator nozzle AN, and a series of stabilizer ribs TSsr surround the eyebrows ve within the threaded sleeve TS as shown in FIG. 8.
  • FIGS. 9 and 10 show an arrangement that is similar to FIGS. 7 and 8 but does not provide a separate aeration fitment AF.
  • the adjustable nozzle TS' is a single piece that replaces the fitment AF and sleeve TS in the FIG. embodiment. All the same features are otherwise present for obtaining atomization.
  • FIGS. 11 and 12 show another means to provide non-clogging action
  • FIG. 11 shows the membrane of FIG. 12 being retained by a threaded fitment TF over a container C ' .
  • FIG. 13 is an enlarged fragmentary view of the nozzle fitment NF, taken in the direction of arrow 13 in FIG. 11, and in particular showing the feed slots fs that are part of the vortex eyebrows ve" configuration. As in FIGS. 11 and 12, there is no aeration nozzle AN.
  • FIGS. 15 and 16 show four aeration vortex channels A VC that receive the air from the non-clog insert NCA shown in FIGS. 19 and 20 to further enhances the spray pattern.
  • FIG. 21 shows the same arrangement but without the aeration vortex channels.
  • the aeration nozzles in both forms have three flex braces fb to support the flexible diaphragm d' (see FIG. 17) required to support a non-clog action, if necessary.
  • both types have threads for retention onto an actuator. For purpose of simplicity in illustration, the threads are not shown in the bottom view of FIG. 15.
  • FIGS. 22 through 30c are all part of a test module TM constructed to prove the concept of the embodiments described above.
  • the test module comprises an aeration nozzle AN, non-clog insert NCA, cap housing AN, non-clog housing NCH, non-clog tip NCT, spray housing SH, cylinder bore housing CBH, back housing BH and piston P'.
  • the cylinder bore housing CBH is threaded on both ends at SHT and CHT to retain the cylinder bore housing CBH in place.
  • the actuator nozzle AN and the cap housing CH are threaded onto the spray housing SH and cap housing CH at ANT and CHT locations shown in FIG. 22.
  • the spray housing has internal threads at top and bottom locations AHT and SHT and a number of O-ring seals OR are placed at all required seal points within the module. This module does not have the actuator assembly 10 and valve assembly 11 as shown in FIGS. 1 and 2 for delivering the sequential feed of air and product.
  • the module TM directs the two air feeds so that the product and air travel directly onto the piston within the cylinder and to the nozzle orifice of the actuator assembly, where the air and product become mixed and atomized to demonstrate the results intended for the structure shown in FIGS. 1 and 2.

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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)

Abstract

L'invention concerne un ensemble de vannes d'aérosol à double fonction, lequel système présente un boîtier de vannes comportant des première et seconde vannes à tige montées servant à effectuer un va-et-vient en son sein. La première vanne à tige commande un écoulement d'agent de propulsion gazeux et la seconde vanne à tige est reçue de manière coaxiale à l'intérieur de la première vanne à tige, et commande l'écoulement de produit. Un ensemble d'actionneur et de buse est relié aux vannes à tige de telle sorte que la première vanne à tige est ouverte en vue d'admettre l'agent de propulsion dans la buse lors de l'enfoncement initial de l'actionneur, et que la seconde vanne à tige est ensuite ouverte en vue d'admettre un produit dans la buse. La fermeture des vannes à tige se fait dans l'ordre inverse, de telle sorte que l'écoulement de produit vers la buse est tout d'abord interrompu, après quoi l'écoulement d'agent de propulsion est interrompu. Un ressort sollicite les vannes à tige vers leurs positions fermées. Le boîtier de vanne est conçu pour recevoir soit un système de vanne sur un sac, soit un système de piston.
PCT/US2016/034693 2016-05-27 2016-05-27 Buse anti-bouchage, actionneur et ensemble de vannes servant à des systèmes de vannes sur un sac ou de vannes sur une boîte Ceased WO2017204828A1 (fr)

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PCT/US2016/034693 WO2017204828A1 (fr) 2016-05-27 2016-05-27 Buse anti-bouchage, actionneur et ensemble de vannes servant à des systèmes de vannes sur un sac ou de vannes sur une boîte

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PCT/US2016/034693 WO2017204828A1 (fr) 2016-05-27 2016-05-27 Buse anti-bouchage, actionneur et ensemble de vannes servant à des systèmes de vannes sur un sac ou de vannes sur une boîte

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4396152A (en) * 1977-03-02 1983-08-02 Abplanalp Robert H Aerosol dispenser system
US4431119A (en) * 1981-11-19 1984-02-14 Stoody William R Self-cleaning, aerosol valve for separate fluids
US7341169B2 (en) * 2005-04-05 2008-03-11 Precision Valve Corporation Automatic purging and easy dispensing aerosol valve system
US20110007987A1 (en) * 2007-07-16 2011-01-13 Summit Packaging Systems ,Inc. Fitment and valve apparatus for bag-on-valve device
US9387977B1 (en) * 2012-05-22 2016-07-12 William Sydney Blake Dual functioning combination non clog actuator with valve assembly for bag-valve and canister-on-valve assembled systems utilizing compressed air or gases

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4396152A (en) * 1977-03-02 1983-08-02 Abplanalp Robert H Aerosol dispenser system
US4431119A (en) * 1981-11-19 1984-02-14 Stoody William R Self-cleaning, aerosol valve for separate fluids
US7341169B2 (en) * 2005-04-05 2008-03-11 Precision Valve Corporation Automatic purging and easy dispensing aerosol valve system
US20110007987A1 (en) * 2007-07-16 2011-01-13 Summit Packaging Systems ,Inc. Fitment and valve apparatus for bag-on-valve device
US9387977B1 (en) * 2012-05-22 2016-07-12 William Sydney Blake Dual functioning combination non clog actuator with valve assembly for bag-valve and canister-on-valve assembled systems utilizing compressed air or gases

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