US3235140A - Spray head for aerosol valve - Google Patents

Spray head for aerosol valve Download PDF

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Publication number
US3235140A
US3235140A US333495A US33349563A US3235140A US 3235140 A US3235140 A US 3235140A US 333495 A US333495 A US 333495A US 33349563 A US33349563 A US 33349563A US 3235140 A US3235140 A US 3235140A
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US
United States
Prior art keywords
slot
stem
gasket
spray head
plunger
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
US333495A
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English (en)
Inventor
Edward H Green
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US333495A priority Critical patent/US3235140A/en
Priority to CH1274264A priority patent/CH427676A/de
Priority to AT839664A priority patent/AT258779B/de
Priority to GB40726/64A priority patent/GB1075877A/en
Priority to NL6412932A priority patent/NL6412932A/xx
Priority to FR998960A priority patent/FR1420721A/fr
Priority to DK621164AA priority patent/DK112230B/da
Priority to SE15330/64A priority patent/SE301613B/xx
Priority to ES0307393A priority patent/ES307393A1/es
Priority to DE19641425870 priority patent/DE1425870C/de
Priority to FI642738A priority patent/FI48325C/fi
Priority to BE657593D priority patent/BE657593A/xx
Application granted granted Critical
Publication of US3235140A publication Critical patent/US3235140A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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 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
    • 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
    • B65D83/16—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 characterised by the actuating means
    • B65D83/20—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 characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps

Definitions

  • This invention relates generally to packages for enabling the dispensing of pressurized products, and more pan tlcularly, is concerned with a spray head to be used with such a package.
  • the particular construction of the package with which the invention is concerned comprises a canister of suitable configuration and strength to contain the pressure of the product and having a cover member secured to the top thereof.
  • the cover member has a central upstanding boss with a central opening in the boss, and on the inside of the boss there is disposed a resilient rubber gasket which also is provided with a central hole.
  • the gasket is held in place by means of the flared open end of a housing crimped in place to the underside of the gasket and clamping the same to the lower surface of the top Wall of the boss.
  • a dip tube is connected to the bottom end of the housing, and this dip tube extends down into the body of the canister to enable the pressurized product to come up the dip tube and into the housing. It would be appreciated from the above description that the pressurized product would immediately flow out of the canister by Way of the opening in the gasket and in the boss but for some means to block such flow.
  • a vertical, reciprocable plunger Inside the housing, there is a vertical, reciprocable plunger the upper end of which is provided with a valve seat and the lower end of which is urged upwardly by means of a helical spring disposed inside of the housing and bearing against the bottom of the plunger.
  • the plunger is provided with a socket coaxial therewith and aligned with the axes of the openings in the gasket and in the boss but, it will be appreciated that so long as the sprin. is pressing the plunger against the bottom surface of the gasket, there can be no escape of pressurized product from the canister.
  • a removable spray head in the form of a push button adapted to be manually pressed downwardly for the purpose of dis pensing the product.
  • the spray head normaily consists of a shell having an integral depending stem that is hollow, there being an external, laterally directed orifice adjacent the top of the spray head connected by suitable passageways with the hollow stem.
  • the stem serves normally as an expansion chamber.
  • the bottom end of the stem is provided with a side slot that commences at a point spaced from the bottom and is open to the bottom of the said stem.
  • the diameter of the stem is such that the stem may be inserted through the opening in the boss and tightly engage through the gasket and be seated in the socket of the plunger.
  • the length of the slot is such that a very small portion of the slot extends above the valve seat and into the gasket, but does not extend through the gasket, so that when the spray head is pushed downwardly, at the same time that it unseats the plunger from the bottom surface of the gasket, it will expose the upper end of the slot so that the pressurized material inside of the housing may enter the slot and thence, pass into the hoilow center of the stem and out through the external orifice.
  • Another construction which is used and which is somewhat different is one in which there is a pocket or gallery on the inside of the valve plunger just above the socket so that the slot of the spray head does not extend into the gasket but instead has its upper end terminating below the valve seat but inside the pocket or gallery.
  • Various advantages are attached to such a construction which are not of consequence in this invention.
  • valves of the above described construction have been used with substantial success for the dispensing of heavy materials, such as paints, lacquers, starches and the like, in which the material is usually suspended in a carrier and packaged in the canister along with a suitable propellant.
  • heavy materials such as paints, lacquers, starches and the like
  • the material is usually suspended in a carrier and packaged in the canister along with a suitable propellant.
  • One of the problems involved in packages of this type is that the material will clog the slot as a result of drain back into the bottom end of the slot or as a result of adherence of some of the material to the sides of the slot after use.
  • the invention herein has as its principal object the provision of a spray head in which the disadvantages named above are less likely to occur than with previous constructions. This is accomplished by having the major portion of the slot substantially greater in width than the upper end of the slot where the metering is actually taking place.
  • FIG. 1 is a fragmentary side elevational view of the upper end of a package of the type with which the invention is intended to be used. the construction of the invention not being visible in this view.
  • FIG. 2 is a median sectional view through the package of FIG. 1 along the lines 22 and in the direction indicated, a portion being shown in elevation and the view being on a somewhat enlarged scale.
  • FIG. 3 is a fragmentary sectional view taken generally alon the line 33 of FIG. 2 and cated.
  • FIG. 4 is a fragmentary sectional view of a portion of FIG. 2 but on a greatly enlarged scale.
  • FIG. 5 is a view similar to that the invention as applied to a modified form of valve construction.
  • FIG. 6 is a fragmentary side elevational view of the bottom end of the spray head constructed in accordance with the invention.
  • the invention comprises providing the bottom end of the stem with a clean through slot, the major length of which slot is much greater in width than that of the upper portion of the said slot so that there is a plentiful volume of space provided for drain-back, not only from a viewpoint conof the slot but, likewise, considering sidering the filling the adherence of material to the side walls of the slot.
  • a slot of this type is easier to manufacture because, for the most part, its dimensions are large and the tools are The term width is used to at its axial entrance.
  • FIG. 1 there is illustrated a package for pressurized product which, in the in the direction indiof FIG. 4 but showing instance, is represented by a metal canister.
  • the package is designated generally by the reference character 20 and the canister itself comprises a lower cylindrical portion, only the upper end of which is shown at 22, having a high pressure dome 24, the upper lip of which is curled as shown at 26 in FIG. 2.
  • the cover member which has been referred to as that article to which the structure of the invention is secured is designated generally by the reference character 30 and the housing mentioned above is designated 52.
  • the spray head of the invention is identified by the general reference character 36.
  • the dip tube which is normally in the form of a soft plastic conduit is designated 34,.
  • the manufacturer of the complete package is called a filler in the trade and he purchases the canisters or bottles from one source and the valves and spray heads from another.
  • the valve and spray head manufacturer furnishes to the filler an article which consists of the cover member 30 mounting all of the apparatus to be described together with the spray head 36, usually separate from the cover member and its associated apparatus.
  • the filler fills the can and applies the cover member after which he inserts the spray head.
  • the filler causes the curled-over lip 33 of the cover member 30 to be crimped over the curl 26 formed at the top of the dome 24-.
  • Suitable gasket material 46 which has been previously laid into the curl 38 provides the necessary seal at this point.
  • the cover member 30 has an integral annular wall 40 connected with the curl 38 that extends downwardly and thereby provides a well 42 in the center of which there is provided an upstanding, integrally connected, cylindrical boss 44.
  • the entire cover member 30 is made of sheet metal preferably stamped by well known techniques.
  • there is a cylindrical, hollow housing 32 having an upper, outwardty flared end 43 and a bottom end the latter being connected with the dip tube 34-.
  • the upper flared end 48 is engaged against the bottom surface of a gasket 52 of rubber or similar resilient material that is disposed in the upper end of the boss 44-, the said gasket 52 being clamped to the upper wall 54- of the boss l by itself being crimped in place, as indicated at 55.
  • the upper wall 54 of the boss i4 is relieved at 56 to provide an opening through which, as will be shortly noted, the stem of the spray head 36 extends.
  • the housing 32 by virtue of this construction, provides a hollow chamber 58 into which pressurized material flowing up the dip tube 34 may enter.
  • the gasket 52 has a central opening 60 which is coaxial with the opening 56 so that any material which is disposed within the housing 58 may find its way out of the housing and through the cover member by way of the passageways 60 and 56 unless this flow is blocked in some manner, and, as will be seen, this condition will occur under normal operating circumstances.
  • valve plunger '62 Inside of the housing 32 is provided a valve plunger '62 the bottom end of which is urged upwardly by means of a helical spring 64 disposed in the housing and engaging the bottom, decreased diameter portion 66 of the valve plunger.
  • a flange d8 integral with the valve plunger 62 by means of which the plunger may be guided in its reciprocatory movement up and down and suitable passageways are provided in the plunger to assure that the fluid will flow readily from below the plunger past the flange 68.
  • FIG. 3 wherein a central division '70 is provided.
  • valve plunger 64 is provided with a cylindrically shaped socket 72 which opens to the top end or the plunger and extends downward to the point 76 where it forms a floor 77 for a purpose presently to be described.
  • the spray head 36 has a hollow depending stem 80, the bottom end 78 of which is chamfered as shown, if preferred, for ease in pushing the same through the gasket 52, and this bottom end 78 seats upon the floor 77 so as accurately to establish the vertical disposition of the spray head stem 3% relative to the plunger 62.
  • the spray head 36 is provided in its stem 80 at one side thereof with a slot 88 that opens to the bottom of the stem.
  • This slot 88 extends upward and its upper end is defined by the reference character 5%.
  • the construction shown in FIGS. 3 and 4 makes provision at the top end of the valve plunger 62 for a pocket or gallery 86 that is an enlargement of the socket '72, so that the fiOOl' 39 of the pocket 35 surrounds the upper end of the socket.
  • Axially spaced upward from the fioor 89 is the end of the valve plunger 62 which provides an annular seat 87 that is engaged normally against the bottom surface )2 of the gasket 52 to seal the interior of the valve plunger from the chamber 58. Entrance to the slot 88 is achieved through the exposed portion of the slot appearing in the pocket 36 as indicated at S' l.
  • the upper inner edge of the valve seat 87 is rounded as shown at 96.
  • the spray head stem St? has the slot 83 in two parts, namely the upper part 91 which is quite narrow and more of the configuration normally used for the dispensing of heavy products of the type previously mentioned and a very wide portion 93 which extends from the narrow portion 91 to adjacent the bottom of the valve stem 80.
  • the bottom of the narrow portion 91 is at the level 9'7 and that the wide portion 93 extends down to the chamfer which is at the end 73 at which points it in itself is slightly widened as at 1% ⁇ which enables it to be molded easier.
  • a typical spray head stem 8i) of this type would be, say, .123 inch in diameter, and obviously this also will be the approximate internal diameter of the socket 72.
  • the width of the slot 88 at its narrow portion 91, which is designated A, would typically be approximately .016 inch for the dispensing of paint, for example.
  • the vertical dimension of this narrow portion 91 is given at B and would be approximately .020 inch. Only one-half of this normally would be exposed as indicated by the dimension B which would be .010.
  • the slot portion 93 has a dimension C which is equal to .027 inch.
  • the width C may be as much as .040 inch with equal effectiveness.
  • valve plunger 62 has no pocket or gallery 86, but, instead, the socket 72 extends up to the end of the plunger 62 so that the valve seat 87 surrounds the upper opening of the socket 72.
  • the pocket floor 89 it is the equivalent of the pocket floor 89 in the respect that the narrow portion 91 of the slot 88 extends above the valve seat 37 to a point 90 which is disposed inside of the gasket 52.
  • the upper end 90 of the slot 88 terminates above the bottom surface 92 of the gasket so that when the user presses down on the stem 80, it will move the valve plunger 62 against the spring 64- unseating the valve seat 87 and exposing the entrance 94' to the slot portion 91.
  • FIG. 6 the distance from the floor 77 to the upper end 90 of the slot portion 91 is greater than the distance from the fioor 77 to the valve seat 87. In the example given, this distance will be equal to about .010 inch so that the remainder of the slot portion 91 in the amount of .010 inch is below the level of the valve seat 87. In all other respects, FIG. 5 operates in the same manner as the apparatus described in connection with FIG. 4.
  • Apparatus for dispensing pressurized products from a container comprising an aerosol valve construction in which there is a cover member adapted to be sealed to said container, said cover member having a central upstanding boss provided with a central opening, an annular gasket also having a central opening disposed on the interior of the boss, a valve housing mounted to the bottom of the boss and clamping the gasket to the upper wall of the boss with the openings aligned, a spring pressed valve plunger disposed in the housing and having an upper end forming a valve seat with.
  • a socket in the plunger having its bottom end closed to form a floor and having its upper end aligned with the openings, a spray head having an exterior dispensing orifice and a hollow depending stem connected therewith, the stem having a diameter to slidingly and sealingly, yet removably extend through the openings and be matingly engaged with the floor of said socket and be securely bottomed therein, said stem having a side slot which extends axially from the bottom of the stem and is open clean through the side wall of said stem for the major part of its length, and the slot extending out of the socket so as to present an exposed entranceway to the interior of said stem when the spray head is pushed downwardly to unseat the valve seat; the invention herein which comprises: said clean through slot having an upper narrow portion which provides internal metering and a wider lower portion extending axially upward for
  • RAPHAEL M. LUPO Primary Examiner.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
US333495A 1963-12-26 1963-12-26 Spray head for aerosol valve Expired - Lifetime US3235140A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
US333495A US3235140A (en) 1963-12-26 1963-12-26 Spray head for aerosol valve
CH1274264A CH427676A (de) 1963-12-26 1964-10-01 Ventilanordnung zur Verwendung in Sprühdosen
AT839664A AT258779B (de) 1963-12-26 1964-10-02 Sprühkopf
GB40726/64A GB1075877A (en) 1963-12-26 1964-10-06 Spray head for pressurized dispensing container valves
NL6412932A NL6412932A (xx) 1963-12-26 1964-11-06
FR998960A FR1420721A (fr) 1963-12-26 1964-12-17 Tête de pulvérisation pour vaporisateur d'aérosols
DK621164AA DK112230B (da) 1963-12-26 1964-12-18 Forstøverhoved til aerosolbeholdere.
SE15330/64A SE301613B (xx) 1963-12-26 1964-12-18
ES0307393A ES307393A1 (es) 1963-12-26 1964-12-21 Una boquilla rociadora para suministrar fluidos a presion.
DE19641425870 DE1425870C (de) 1963-12-26 1964-12-23 Sprühkopf fur ein Ventil eines Aerosolbehalters
FI642738A FI48325C (fi) 1963-12-26 1964-12-23 Sumutuspää venttiileineen paineenalaista väliainetta varten.
BE657593D BE657593A (xx) 1963-12-26 1964-12-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US333495A US3235140A (en) 1963-12-26 1963-12-26 Spray head for aerosol valve

Publications (1)

Publication Number Publication Date
US3235140A true US3235140A (en) 1966-02-15

Family

ID=23303028

Family Applications (1)

Application Number Title Priority Date Filing Date
US333495A Expired - Lifetime US3235140A (en) 1963-12-26 1963-12-26 Spray head for aerosol valve

Country Status (10)

Country Link
US (1) US3235140A (xx)
AT (1) AT258779B (xx)
BE (1) BE657593A (xx)
CH (1) CH427676A (xx)
DK (1) DK112230B (xx)
ES (1) ES307393A1 (xx)
FI (1) FI48325C (xx)
GB (1) GB1075877A (xx)
NL (1) NL6412932A (xx)
SE (1) SE301613B (xx)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348743A (en) * 1965-12-23 1967-10-24 Edward H Green Aerosol valve construction
US3589571A (en) * 1969-07-18 1971-06-29 Scovill Manufacturing Co Aerosol valves
US3658294A (en) * 1970-02-16 1972-04-25 Ronald F Ewald Tilt valve
US5027985A (en) * 1986-12-03 1991-07-02 Abplanalp Robert H Aerosol valve

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2913154A (en) * 1955-11-07 1959-11-17 Aerosol Res Company Aerosol valve assembly
US3045877A (en) * 1960-07-01 1962-07-24 Edward H Green Aerosol dispenser valve
US3095127A (en) * 1960-03-30 1963-06-25 Edward H Green Dispenser valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2913154A (en) * 1955-11-07 1959-11-17 Aerosol Res Company Aerosol valve assembly
US3095127A (en) * 1960-03-30 1963-06-25 Edward H Green Dispenser valve
US3045877A (en) * 1960-07-01 1962-07-24 Edward H Green Aerosol dispenser valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348743A (en) * 1965-12-23 1967-10-24 Edward H Green Aerosol valve construction
US3589571A (en) * 1969-07-18 1971-06-29 Scovill Manufacturing Co Aerosol valves
US3658294A (en) * 1970-02-16 1972-04-25 Ronald F Ewald Tilt valve
US5027985A (en) * 1986-12-03 1991-07-02 Abplanalp Robert H Aerosol valve

Also Published As

Publication number Publication date
BE657593A (xx) 1965-04-16
SE301613B (xx) 1968-06-10
NL6412932A (xx) 1965-06-28
ES307393A1 (es) 1965-05-16
CH427676A (de) 1966-12-31
AT258779B (de) 1967-12-11
DK112230B (da) 1968-11-18
GB1075877A (en) 1967-07-12
FI48325B (xx) 1974-05-31
FI48325C (fi) 1974-09-10
DE1425870A1 (de) 1969-04-30

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