US3545488A - Dip tubes for aerosol valve assemblies - Google Patents

Dip tubes for aerosol valve assemblies Download PDF

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Publication number
US3545488A
US3545488A US654547A US3545488DA US3545488A US 3545488 A US3545488 A US 3545488A US 654547 A US654547 A US 654547A US 3545488D A US3545488D A US 3545488DA US 3545488 A US3545488 A US 3545488A
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United States
Prior art keywords
valve
container
housing
dip tube
tube
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
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US654547A
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English (en)
Inventor
Frank Venus Jr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Risdon Manufacturing Co
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Risdon Manufacturing Co
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Publication date
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Publication of US3545488A publication Critical patent/US3545488A/en
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    • 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
    • B65D83/36—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant allowing operation in any orientation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86348—Tank with internally extending flow guide, pipe or conduit

Definitions

  • VALVE ASSEMBLIES ABSTRACT A dip tube assembly for an aerosol or similar g fluid dispensing valve, wherein the assembly incorporates [52] [1.8. CI. 137/590, gravity operated shuttle valve means secured to the dip tube at 222/376 substantially its effective midpoint to provide a first inlet [5 1] Int. Cl. Fl7d 1/12 point. and wherein a portion of the tube is effectively folded [50] Field of Search 137/590; back upon the rest of the tube to provide a second inlet point 251/339, 353; 222/(lnquired), 376,394, 402.19
  • the present invention relates to improvements in valve assemblies for controlling the dispensing of a liquid product from a pressurized container, i.e. a so-called aerosol package. It is more particularly directed to improvements in dip tubes for such valve assemblies in order to provide for normal dispensing of a liquid product regardless of whether the container is held in an upright or in an inverted position.
  • a valve assembly In the usual aerosol package, a valve assembly is sealed in the mouth of a container and manual actuation of a valve member controls the dispensing of the product.
  • the product within the container is fed under the pressure of a propellant gas above the surface of the liquid'up through an education or dip tube whose lower end is disposed below the surface of the liquid, and the product is ultimately discharged through a spout or nozzle in the valve assembly So long as the inlet end of the eduction tube is below the surface of the liquid product in the container, the product will be supplied to the valve assembly for discharge by the propellant pressure.
  • a vaporized portion of this propellant occupies a head space in the container above the surface of the liquid product.
  • the inlet end of the education or dip tube will no longer be in contact with the product but instead will be disposed in a region occupied only by gaseous propellant. Dispensing of the liquid product, therefore, cannot be continued in this inverted position of the container.
  • the difficulty with such arrangement is that with the container in inverted position no provision is made for simultaneously closing the inlet end of the eduction tube so that propellant gas can and does enter the normal inlet end of the dip tube.
  • This gas mixes with the fluid product entering through the shuttle-controlled bypass port and not only does this change the character, e.g. foam, spray or stream, of the product discharged from the package, but it also causes rapid depletion of thepropellant. As a result there may not be enough propellant available completely to exhaust the liquid contents of the container, and it is wasted.
  • Another objective in certain modifications of the basic design include automatic purging of the discharge valve in each cycle of operation. Still other objectives will appear in the following description.
  • the invention accomplishes these objectives by interposing a gravity-operated auxiliary valve at the inlet end of the usual ,dip tube, i.e. the end normally adjacent the bottom of the container, and by connecting into such auxiliary valve an additional or secondary dip tube which is directed back upon the normal or first dip tube to terminate adjacent the main or dispensing valve assembly.
  • auxiliary valve is effectively positioned at substantially the midpoint of the total length of eduction tubing.
  • the auxiliary valve is positioned by graviproblem.
  • auxiliary valve operation of the auxiliary valve in the manner just discussed depends on proper correlation of the flow rate and restriction imposed by the valve member itself.
  • the valve design may be made to cause closing of the normally open inlet intermediate the main and secondary dip tubes by the normal flow of product through that inlet. Only fluid product which is contained in the two dip tubes will then be discharged, followed by a blast of propellant gas.
  • This modified arrangement provides a cycle of operation in which a metered or measured amount of fluid product is dispersed, followed by a purging blast of propellant, on each actuation of the discharge valve.
  • FIG. 1 is a schematicrepresentation of a vertical cross section of a typical aerosol container and valve assembly, including an improved dip tube of the present invention
  • FIG. 2 is a similar view in which the aerosol container is inverted
  • FIG. 3 is a similar view in which the aerosol container is tipped on its side;
  • FIG. 4 is an enlarged view in vertical cross section of an auxiliary valve member used with the dip tube shown in FIGS. 1 through 3, the auxiliary valve being shown here in its open position; g 1
  • FIG. 5 is a view similar to that of FIG. 4 but showing the auxiliary valve in its closed position
  • FIG. 6 is a side view of a modified dip tube and auxiliary valve assembly, parts being shown in section and broken away;
  • FIG. 7 is a cross-sectional view of the dip tube taken on line 7-7 of FIG. 6;
  • FIG. 8 is an end view of the auxiliary valve housingshown in FIG. 6, looking from the right in that view but with the ball check and cage removed;
  • FIG. 9 is a sectional view of the: auxiliary valve housing taken on line 9-9 of FIG. 6
  • FIG. 10 is a fragmentary side view of still another form of dip tube and auxiliary valve assembly
  • FIG. 11 is a view similar to that of FIG. 10 but in a plane perpendicular to the plane of section in FIG. 10 and showing a ball check in place;
  • FIG. 12 is a cross-sectional view of a dip tube taken on line 12-12 in FIGS. l0.and 11;
  • FIG. 13 is an end view, looking from the left in FIGS. 10 and 11, of the auxiliary valve housing with the dip tubing removed;
  • FIG. 14 is aside view in cross section of still anotherform of auxiliary a valve housing
  • FIG. 15 is'a plan view of the underside of the unit shown in FIG. 14, parts broken away and shown insection;
  • FIG. 16. is'an end viewlooking from the right in FIG. 14 but with the end closure disk and ball check removed.
  • FIGS. 1-3 A typical container'20 is shown somewhat schematically in FIGS. 1-3, in which there is incorporated at one end a valve assembly22-of conventional-form.
  • a valve and mounting arrangement in the end of the aerosol container such as that shown in US. Pat. No. 3,254,677, is eminently suitable, but the improved diptube assembly of the present invention is not limited to use with that particular valve design.
  • Valve22 is equipped-with a dip tube assembly indicated generallyat 24 which-is 'connectedby means of a tailpipe (not shown) on valve 22 andextends downwardly from the valve toward thebottom wall-of container 20.
  • Container is partially'filled with'a liquid tobe dispensed from the container,
  • Liquid product in the container is dispensed through a nozzle or actuating button 26 secured to the end of the usual dispensing'stem 28 of the valve.
  • the button serves as be seen that the lower end of tube 30 is received in a first socket 34 formed in housing 32 to provide communication between .the duct; of tube 30 and an interior chamber 36 in housing 32.
  • the left or terminal-facing end of housing 32 is 'formed to provide a cage portion defining an" elongated enclosure for laterally and axially confining a check valve member, discussed more fully presently.
  • this cage portion takes the general form of a well 38 wherein the outer wall of housing 32 forms the side of the well, and a transverse wall is provided having an axial aperture 40 and forming the bottom of the well.
  • Aperture 40 forms a passage giving communication between interior chamber 36 and well 38.
  • a frustoconical valve seat is formed about aperture 40 in the transverse wall,and a ball check 44 is confined to move axially in well 38 of the cage portion, within inner and outer limits defined by valve seat 42 and one or-more detents 46, respectively.
  • housing 32 is also provided with lateral feed ports 48 passing through the housing wall into communication with well 38 adjacent valve seat .42.
  • ball check 44 is carried by gravity away from its seat 42, and fluid may thus enterthrough auxiliary valve housing 32, by way of ports 48 as well as through the open end of well 38'and around ball check 44, into interior chamber '36. Therefore, when the dispensing valve 22 is operated toopen position, fluid under the pressure of the propellant in the head space above liquid L is forced up through dip tube 30 and passes through valve 22 and is dispensed.
  • dip tube 50 which is received in a socket 52 likewise provided in housing 32 and communicating .with interior chamber 36.
  • Dip tube 50 extends back along the first tube 30, generally parallel thereto, to terminate adjacent the discharge valve 22. Since the remote or free end of dip tube 50 is thus disposed below the level L of the liquidin the containen'fluid now entersdip tube 50 when valve 22 isoperated, and travels upwardly through tube 50, through interior passage 36 and back down through the first tube 30 to valve 22 for ultimate discharge.
  • the secondary dip tube 50 serves no active part in conducting fluid product but it in no way interferes with or modifies the normal dispensing operation, assuming the flow rate and restriction imposed by fluid flow through housing 32 are so designed as to avoid lifting of ball 44 to the closed position.
  • dip tube and auxiliary valve assembly is shown in FIGS. 69 in which a single dip tube 124 having two ducts orpassages is employed.
  • dip tube 124 comprises an integrally molded first duct portion of essentially circular cross section and an adjacent second portion 150 of substantially crescent cross section.
  • the first duct portion 130 is extended beyond the adjacent second portion 150 and is adapted to be received on the usual tailpiece of the valve assembly 22.
  • the second duct 150 therefore terminates in an open end closely adjacent the normal dispensing valve At the opposite end of the dip tube 124, it is secured to an auxiliary valve housing 132.
  • This is specially formed to provide tail members 134 and 156 to receive and make fluidtight communication with the respective duct portions 130, 150, as seen more particularly in FIGS. 6 and 9.
  • Ports 135 and 157 communicate the respectivetail members and duct portions to an interior chamber 136 of valve housing 132.
  • valve housing 132 is provided with a cage portion defining a well 138 open at one end and communicating with interior chamber. 136 through an aperture having a shoulder 142 to form a seat for ball check 144.
  • Ball check 144 is retained in well 138 in this instance by a separate cage member 146 in-, serted in the well and having inwardly bent detent fingers 147.
  • first and second duct portions 230 and 250 are molded in an integral flexible plastic tube of generallyoval a cross section, as seen more particularlyin FIGS. 10 and 12.
  • duct portion 130 is adapted tobesecured at onev end of the tailpiece of the conventional valve assembly 22, while the adjacent end of the second duct portion 150. is terminated in open condition closely adjacent the dispensing valve.
  • the opposite end of the dip tube assembly is again secured to an auxiliaryvalve housing-232'provided with suitable tail members 234 and 256 arranged to receivedthe respective duct 230 and 250. These tail members in turn communicate through respective passages 235 and 257 with an interior chamber 236 of the auxiliary valve housing 232.
  • the housing 232 is provided-with'a cage portion defining a well 238 which is open at one end and communicates with interior chamber 236, forming a valve seat 242 at the junction therewith.
  • Ball check 244 is loosely received in well 238 for shuttle movement between a seated position on seat 242'and an open position which in this instance is defined by inwardly bent tabs 246 formed'integrallyon housing 232.
  • the auxiliary valve 332 shown in FIGS. 14 to 16 is again similar to the foregoing des'igns but is so formed as to dispose the main body of the valve at an angle to the axis of the dip tubes. The purpose of this is to facilitate movement of the ball check- 344 to the closed position against seat 342 when the container is disposed in positions between horizontal and where it is only slightly below horizontal.
  • the projecting duct or tail members 334, 356 are inclined to the axis of chamber 236, and communicate with it interiorily through ports 335, 357, (FIG. 14, l5).
  • This last embodiment incorporates a closure disk 346 for the open end of well 338 defined by the cage portion, and a bypass chamber 348 provides lateral access for fluid product to enter the housing.
  • Disk 346 is retained in any suitable manner asby bent tabs 347, In place of the closure disk any other form of closure may 'be. us ed, such as an integral flap molded on the housing and subsequently folded over and heat sealed to cover the open end of the;well,' or simply by extending the walls of the well and then pinching them together.
  • the design permits greater flexibility in adapting the auxiliary valve to special dispensing control requirements for different fluid products.
  • aperturing closure disk 346 to provide openings of different diameters, the flow rate over and around ball check 344 can be changed to alter the lifting effect on the ball check.
  • the ball may be caused to move more or less easily and quickly to seated position against its seat 342 for agiven rate of fluid. product flow.
  • the metering and purging mode of operation referred to before maybe accomplished.
  • This design retains the advantage of that shown in FIGS.
  • the invention accordingly provides a very simple structural arrangement in a dip tube and auxiliary valve assembly for use in connection with a standard aerosol dispensing valve to in-.
  • the invention further provides a way of imparting a metering'purging. mode of operation in dispensing a fluid product,ifthisis desired.
  • first-valve means adapted to be mounted in one end of the container and'normally confining fluid product therein and operable ⁇ to allow such product to be dispensed therefrom only uponmanual actuation of the valve means;
  • dip tube means comprising a first tube portion secured to said first valve means;
  • auxiliary valve means connected to said first tube portion at a point remote from said first valve means, said auxiliary valve incorporating a a gravity-operated check valve member and a bypassport opened and closed by said member to provide communication at that point between the dip tube and the interior of the container;
  • said dip tube means includinga'second tube portion interconnected with the first through said auxiliary valve means and doubled back ,on said first tubeportion to terminatein an open end adjacent said first valve means;
  • said auxiliary valve port being open in normal upright position of said valve assembly to bypass said second tube portion, but being closedby said gravity-operated check valve membenwhen the valve assembly is inverted to close the bypass of said second tube portion.
  • auxiliary valve means is interposed at substan 3.
  • said clip tubev means comprises separate lengths of V tubing interconnected by said auxiliary valve means.
  • auxiliary checkmeans comprises:
  • a molded plastic housing having an interior cl amber, duct means for connecting said first and second dip tube portions to said housing and "establishing communication with said interior chamber;
  • said housing having a cage portion defining an elongated enclosure in which said gravity operated check valve member is confined foraxial movement, under the influence of gravity with change of position of said assembly;' 3 f a transverse wall in said housing intermediate said interior chamber and said cageportion, said-bypass port being locate in said wall and having a valve seat with which said minal end of said cage portion, said housing having a bypass intermediate said valve seat and closure disk providing lateral access to the interior of said housing.
  • I v V 8 A valve and dip tube assembly as defined in claim 6, wherein said housing is disposed at an angle lo the axis of said firstandsecond dip tube portions.
  • An auxiliary gravity-operated check .valve for an aerosol valve and dip tubeassembly comprising:
  • a hollow molded plastic housing having a openended cage portion defining an elongated enclosure
  • a transverse wall in said housing foi'ming an interior chamber therein and constituting an end wall of said cage portion to retain said check valve member therein;

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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)
US654547A 1967-07-19 1967-07-19 Dip tubes for aerosol valve assemblies Expired - Lifetime US3545488A (en)

Applications Claiming Priority (1)

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US65454767A 1967-07-19 1967-07-19

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US3545488A true US3545488A (en) 1970-12-08

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US (1) US3545488A (de)
CA (1) CA920554A (de)
CH (1) CH484705A (de)
FR (1) FR1576001A (de)
GB (1) GB1188221A (de)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3733013A (en) * 1970-12-22 1973-05-15 Sterling Drug Inc Double dip tube aerosol
US3844294A (en) * 1970-03-23 1974-10-29 Ici Ltd Tobacco substitute smoking mixture
US3893596A (en) * 1974-02-25 1975-07-08 Vca Corp Upright-inverted aerosol dispenser
US4091966A (en) * 1976-06-01 1978-05-30 Laauwe Robert H Squeeze bottle containing a powdered product and operative whether upright or inverted
US4572406A (en) * 1983-03-07 1986-02-25 Seachem, A Division Of Pittway Corp. Aerosol container and valve assembly for automatically signalling depletion of a predetermined amount of the container contents when in an inverted position
US4978038A (en) * 1989-05-18 1990-12-18 Sullivan Scott L Aerosol dispenser and valve
US5119974A (en) * 1989-10-13 1992-06-09 Mann Frederick J Spray bottle with a full circle, complementary operative feed system connected to a pump sprayer
US5346104A (en) * 1992-12-24 1994-09-13 Jeong Sang Hyen Discharging path open/close shifting valve for liquid storing container
US5462209A (en) * 1994-05-13 1995-10-31 Contico International, Inc. Trigger sprayer operable in upright, downturned and inverted positions
US5467901A (en) * 1994-05-13 1995-11-21 Contico International, Inc. Trigger sprayer operable in upright, downturned & inverted positions
US5611467A (en) * 1996-05-07 1997-03-18 Peng; Karl K. Invertible pressurized fluid dispenser with guided fluid inlet member
US5624060A (en) * 1995-05-02 1997-04-29 Ellion; M. Edmund Invertible dispensing system and dip tube
US5655714A (en) * 1994-12-08 1997-08-12 Wagner Spray Tech Corporation Pivotable syphon tube
US20050189382A1 (en) * 2002-09-06 2005-09-01 Leafgreen Limited Dip tubes
US20090179051A1 (en) * 2006-04-11 2009-07-16 Francis Verdan Device for applying an alum solution to the body
US20090272768A1 (en) * 2008-05-01 2009-11-05 Ryan Deluca Novel valve for aerosol vessels
WO2010131066A3 (en) * 2009-05-15 2011-01-20 Stormes Cuuvene Ltd. Multi-channel valves and spray containers comprising multi-channel valves
US10413915B2 (en) * 2014-03-28 2019-09-17 An Udder Ip Comapny Ltd. Teat cup with nozzle means

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8611244U1 (de) * 1986-04-24 1986-09-25 Henkel KGaA, 4000 Düsseldorf Treibgasspender
FR2804414B1 (fr) 2000-01-31 2002-06-14 Oreal Dispositif du type comportant un element d'obturation libre a l'interieur d'un tube plongeur et procede de montage d'un tel element d'obturation a l'interieur d'un tube plongeur

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844294A (en) * 1970-03-23 1974-10-29 Ici Ltd Tobacco substitute smoking mixture
US3733013A (en) * 1970-12-22 1973-05-15 Sterling Drug Inc Double dip tube aerosol
US3893596A (en) * 1974-02-25 1975-07-08 Vca Corp Upright-inverted aerosol dispenser
US4091966A (en) * 1976-06-01 1978-05-30 Laauwe Robert H Squeeze bottle containing a powdered product and operative whether upright or inverted
US4572406A (en) * 1983-03-07 1986-02-25 Seachem, A Division Of Pittway Corp. Aerosol container and valve assembly for automatically signalling depletion of a predetermined amount of the container contents when in an inverted position
US4978038A (en) * 1989-05-18 1990-12-18 Sullivan Scott L Aerosol dispenser and valve
US5119974A (en) * 1989-10-13 1992-06-09 Mann Frederick J Spray bottle with a full circle, complementary operative feed system connected to a pump sprayer
US5346104A (en) * 1992-12-24 1994-09-13 Jeong Sang Hyen Discharging path open/close shifting valve for liquid storing container
US5462209A (en) * 1994-05-13 1995-10-31 Contico International, Inc. Trigger sprayer operable in upright, downturned and inverted positions
US5467901A (en) * 1994-05-13 1995-11-21 Contico International, Inc. Trigger sprayer operable in upright, downturned & inverted positions
US5655714A (en) * 1994-12-08 1997-08-12 Wagner Spray Tech Corporation Pivotable syphon tube
US5624060A (en) * 1995-05-02 1997-04-29 Ellion; M. Edmund Invertible dispensing system and dip tube
US5611467A (en) * 1996-05-07 1997-03-18 Peng; Karl K. Invertible pressurized fluid dispenser with guided fluid inlet member
US20050189382A1 (en) * 2002-09-06 2005-09-01 Leafgreen Limited Dip tubes
US20090179051A1 (en) * 2006-04-11 2009-07-16 Francis Verdan Device for applying an alum solution to the body
US8136704B2 (en) 2006-04-11 2012-03-20 Francis Verdan Device for applying an alum solution to the body
US20090272768A1 (en) * 2008-05-01 2009-11-05 Ryan Deluca Novel valve for aerosol vessels
WO2010131066A3 (en) * 2009-05-15 2011-01-20 Stormes Cuuvene Ltd. Multi-channel valves and spray containers comprising multi-channel valves
US10413915B2 (en) * 2014-03-28 2019-09-17 An Udder Ip Comapny Ltd. Teat cup with nozzle means

Also Published As

Publication number Publication date
CH484705A (de) 1970-01-31
FR1576001A (de) 1969-07-25
DE1775183A1 (de) 1971-05-13
GB1188221A (en) 1970-04-15
CA920554A (en) 1973-02-06
DE1775183B2 (de) 1976-12-23

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