US3799448A - Liquid spraying device - Google Patents

Liquid spraying device Download PDF

Info

Publication number
US3799448A
US3799448A US00349687A US34968773A US3799448A US 3799448 A US3799448 A US 3799448A US 00349687 A US00349687 A US 00349687A US 34968773 A US34968773 A US 34968773A US 3799448 A US3799448 A US 3799448A
Authority
US
United States
Prior art keywords
liquid
piston
valve
cylinder
spray
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
US00349687A
Other languages
English (en)
Inventor
T Nozawa
T Kishi
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.)
Yoshino Kogyosho Co Ltd
Original Assignee
Yoshino Kogyosho Co Ltd
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
Priority claimed from JP4455272U external-priority patent/JPS5225692Y2/ja
Priority claimed from JP4533972U external-priority patent/JPS5145689Y2/ja
Priority claimed from JP4534072U external-priority patent/JPS5145690Y2/ja
Priority claimed from JP1947373A external-priority patent/JPS5720024B2/ja
Priority claimed from JP2043073A external-priority patent/JPS5720023B2/ja
Application filed by Yoshino Kogyosho Co Ltd filed Critical Yoshino Kogyosho Co Ltd
Application granted granted Critical
Publication of US3799448A publication Critical patent/US3799448A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/085—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump
    • B05B9/0877—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being of pressure-accumulation type or being connected to a pressure accumulation chamber
    • B05B9/0883—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being of pressure-accumulation type or being connected to a pressure accumulation chamber having a discharge device fixed to the container
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/90—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dyes dissolved in organic solvents or aqueous emulsions thereof

Definitions

  • Cl 239/321, 239/324, 239/349 the head relative to the unit causing the Spring to he 239/350 239/357 239/359, 239/360 222/321 compressed and simultaneously sucking liquid up from [51] Int. Cl B05b 1/32, B05b 11/00 the container into the chamber
  • a valve mechanism is [5'8] Field Of Search 239/321, 322, 324, 337, provided for cutting off the spray by letting the pres 239/349 355, 357; sure out of the cylindrical chamber or by blocking the 222/321 385 communication between the chamber and a discharge valve immediately before the pressurized quantity of [56] References Cited liquid is exhausted.
  • FIGS I v I ii -57 4 I+- 400 62 x LIQUID SPRAYING DEVICE This invention relates to liquid spraying devices and more particularly to an improved spraying device of the type which produces spray mist similar to that produced by the common aerosol bomb and which requires no container pressuring gas nor other foreign propellant.
  • liquid spraying devices which are hand operated, and which can spray in mist form the many liquds commonly used today such as hair sprays, perfumes, toilet waters, deodorants and insecticides.
  • Typical of such devices is one which operates to pump a small quantity of liquid to be sprayed from a container to a cylindrical chamber wherein the liquid is pressurized by the force of a spring which is stressed during cocking stroke preparatory to spraying the liquid from the device.
  • a spray head rotatably mounted on the container functions to set the device in cocked position, and on being manually rotated relative to the container, causes a liquid pressurizing piston to move within the cylindrical chamber in a direction to increase the volume of the chamber thereby sucking liquid up thereinto.
  • the spring is progressively compressed so that, in the cocked position, it acts to urge the piston in the opposite direction to pressurize the liquid drawn into the chamber.
  • a push button discharge valve by a finger.
  • the piston starts its downward movement under the action of the compressed spring, producing a high quality spray mist.
  • an improved liquid spraying device including a valve mechanism which operates to let the pressure out of the liquid pressurizing chamber so as to cause a rapid decrease of the pressure before the pressure in the chamber drops below the minimum value producing spray mist, just prior to the piston reaching its lowermost position, thereby preventing liquid from flowing out of the nozzle in non-mist form.
  • an improved liquid spraying device including a valve mechanism which operates to block the communication between the liquid pressurizing chamber and the discharge valve before the pressure in the chamber decreases below the minimum value producing spray mist, just prior to the piston reaching its lowermost position, thereby preventing liquid from flowing out of the nozzle in non-sprayed form.
  • FIG. 1 is a vertical section of a first embodiment of a liquid spraying device constructed in accordance with the present invention
  • FIG. 2 is a horizontal section taken on the line IIII of FIG. 1;
  • FIG. 3 is a perspective view of a cover unit and a cap ring to be mounted over the unit;
  • FIG. 4 is a perspective view of a slide member and a rotary cylindrical member to be received in the slide member;
  • FIG. 5 is a fragmentary, enlarged vertical section of FIG. 1, with a valve mechanism being closed;
  • FIG. 6 is a vertical section of a second embodiment of the present invention.
  • FIG. 7 is a perspective view of a valve member employed in the FIG. 6 embodiment.
  • FIG. 8 is a view similar to FIG. 7 illustrating a modified valve member
  • FIG. 9 is a view similar to FIG. 5 but illustrating a third embodiment of the present invention.
  • FIG. 10 is an illustration of a fourth embodiment of the present invention.
  • FIG. 11 is a prespective view of a modified valve member
  • FIG. 12 is an illustration of a fifth embodiment of the present invention.
  • FIG. 13 is an illustration of a sixth embodiment of the present invention.
  • FIG. 14 is a fragmentary, enlarged view of FIG. 13, with a valve mechanism being opened;
  • FIG. 15 is an illustration of a seventh embodiment of the present invention.
  • FIG. 16 is an illustration of an eighth embodiment of the present invention.
  • FIG. 17 is an illustration of a ninth embodiment of the present invention.
  • FIG. 18 is an illustration of a tenth embodiment of the present invention.
  • FIGS. 1 to 5 illustrate a first emobidment of the liquid spraying device 10 of the present invention which is dimensioned to be conveniently held in a hand.
  • the spray device 10 comprises a cylindrical container 11 for storing a quantity of liquid to be sprayed, a cover unit 12 removably mounted on the container, and a spray head 13 rotatably mounted on the cover unit 12.
  • the head 13 When the head 13 is rotated relative to the container so as to cock the device, it operates to pump a small quantity of the liquid from the container to a small chamber 14 wherein the liquid is pressurized by the force of a spring which is stressed during the cocking stroke.
  • the head 13 also includes a discharge nozzle communicating with the chamber 14 via a discharge valve which is operated by pushing a button at the top of the head to release the spray as required.
  • a valve mechanism of special construction is provided for cutting off the spray in a manner to let the liquid pressure out of the chamber 14 immediately before the pressurized quantity of liquid is exhausted. The device may be cocked again to ready the same for further spraying.
  • the container 11 comprises a cylindrical receptacle having an open upper end with internal threads 24 formed therein.
  • the cover unit 12 includes an upwardly extending cylindrical guide 28 which is externally threaded around its lower periphery (see also FIG. 3) to screw into the threads 24 of the receptacle 20 to thereby close the upper end of the container against escape of liquid therefrom.
  • the guide 28 is grooved below the threaded portion to provide a seat for an O-ring seal 29.
  • the cover unit 12 also includes a cylinder 30 which is closed at its lower end by a wall 32.
  • An inlet tube 36 extends downwardly from the wall 32 to a position closely adjacent the bottom of the recetacle 20.
  • a check valve 40 of conventional construction is mounted in the cylinder 30 and, in the illustrated embodiment, comprises a valve member 42 formed with an incomplete annular opening 43 and a pressure ring 44 for holding the valve member in place on the bottom surface of the cylinder.
  • the liquid pressurizing chamber 14 is formed in the cylinder 30 axially between the check valve 40 and a piston ring 52.
  • the piston ring 52 is usually formed of suitable elastic material such as rubber, plastic material or leather and is slidably mounted in the cylinder 30 for reciprocating movement therein.
  • the piston ring is fixedly mounted at the lower end of a piston 57 which extends downwardly from a slide member 58. It should be noted that the piston ring may be formed integral with the piston.
  • An O-ring seal 59 is provided between the cylinder 30 and the piston 57 to prevent the liquid from flowing into a space defined between the cover unit 12 and the spray head 13.
  • the piston ring 52 also includes a central opening 60 which is adapted to slidably receive the lower portion ofa hollow stem 62 in liquid-tight manner when the piston 57 moves upwardly from the position of FIG. 1 towards the cocked position.
  • the hollow stem 62 is fixed with respect to the spray head 13 and is formed of a material that is sufficiently rigid not to cause the stem to bend when subjected to a considerable force acting axially thereon.
  • the function of the hollow stem 62 is not only to serve as a guide for the vertically moving piston ring 52, but also to communicate the liquid pressurizing chamber 14 with a discharge valve 63.
  • Another O-ring seal 64 is provided between the piston 57 and the hollow stem 62 for the same purpose as the O- ring seal 59.
  • the spray head 13 is adapted to telescope onto the cylindrical guide 28 exteriorly thereof to insure that its rotational movement relative to the guide is free sliding and non-binding.
  • the lower end of the spray head 28 is grooved as at 72 to receive a flange 74 provided around the cylindrical guide 28. Thus, the spray head is prevented from vertical movement relative to the cylindrical guide once they are assembled to the position of FIG. 1.
  • the spray head 13 includes a top wall 78 having an integral coupling member 80 which is splined to the upper end of a rotary cylindrical member 84.
  • the spray head 13 and the rotary cylindrical member 84 may be moulded integrally.
  • the rotary cylindrical member 84 is provided with a flange 88 which is adapted to abut the underside of the top wall of a cap ring 85, when the rotary cylindrical member is mounted within the cylindrical guide, so as not to cause a compression coil spring 87 to move the cylindrical member 84 upwardly.
  • the cap ring is threadly mounted on the upper end of the cylindrical guide 28. As best seen in FIG. 4, the rotary cylindrical member 84 is in turn splined to the slide member 58.
  • the cylindrical guide 28 has formed internally thereof a pair of diametrically opposite, axial grooves 100, each of which is adapted to receive a ball 102 to cooperate with a substantially sinuous groove 104 formed in the outer periphery of the slide member 58, whereby the rotational motion of the spray head is converted into the vertical upward movement of the slide member.
  • the sinuous groove 104 comprises a pair of diametrically opposite, axial sections 106 which are connected by two sections 108 each intersecting one axial section at its upper end and the other at its lower end.
  • the spray head 13 is shaped at its top to fixedly receive a commercial discharge valve of the type commonly used in aerosol spray bombs.
  • the valve assembly 63 is a known type of push button discharge valve and comprises a casing 122 having a bore 124 and a cover member 126 for holding the casing 122 in place on the top wall of the spray head 13 with a gasket 136 interposed between the casing and the cover member.
  • the gasket 136 is centrally apertured to receive a hollow valve stem 140 with a liquidtight fit therein.
  • the hollow valve stem 140 is closed at its lower end by an enlargement 142 which is adapted to receive the upper end of a spring 144.
  • the hollow valve stem 140 also has a side port 146 extending through its side wall, the port being normally closed by the inner face of the hole 138 in the gasket 136.
  • the valve casing 122 also includes a female coupling 147 depending therefrom which is adapted to fixedly receive the upper end of the hollow stem 62.
  • a trigger push button 150 is secured to the upper end of the valve stem 140.
  • the button 150 has a conventional discharge nozzle 156 communicating with the interior of the hollow valve stem 140.
  • An air inlet valve 158 is provided on the horizontal portion of the cover unit 12, which extends downwardly into the receptacle 20 and is adapted to introduce air thereinto to thereby prevent occurrence of a negative pressure within the receptacle.
  • the above described structure of the spray device 10 is made substantially entirely of suitable plastic material, but the hollow stem 60 is formed of rigid material such as metal or hard plastic.
  • the container 1 1 may be grasped in one hand and simultaneously the spray head 13 is rotated relative to the container by the other hand in a clockwise direction as viewed from above in FIG 1.
  • This will rotate the rotary cylindrical member 84 and accordingly the slide member 58 in the same direction, causing an upward movement of the slide member within the cylindrical guide 28.
  • the lower end of the hollow stem 62 is received in the opening 60 of the upwardly moving piston ring 52, as seen in FIG. 5.
  • the coil spring is progressively compressed and simultaneously the chamber 14 increases its volume, creating a negative pressure in the chamber.
  • This pressure acts to open the check valve 40 so that the liquid under atmospheric pressure in the receptacle is forced upwardly through the inlet tube 36 and check valve 40 into the chamber 14.
  • the slide member 58 When the slide member 58 is moved to its uppermost position, the axial grooves 106 of the slide member are brought into registry with the axial grooves 100 of the cylindrical guide 28, so that the force of the fully compressed spring 87 acts downwardly on the slide member 58, thereby tending to move the same downwardly.
  • the spring force thus presurizes the liquid which is trapped in the chamber 14 between the closed check valve 40 and the piston ring 52.
  • the discharge valve 63 is opened to release pressurized liquid from the liquid pressurizing chamber 14 through the hollow stem 62, bore 124 of the valve casing 122, a passage 170 of the valve stem 140 and nozzle 156.
  • the pressure exerted on the liquid in the chamber 14 by the spring 87 is sufficient to generate a high quality, very fine mist spray comparable to that produced by conventional aerosol bombs.
  • the slide member 58 is progressively moved downwardly by the action of the spring 87.
  • valve mechanism for cutting off the spray by letting the pressure out of the chamber 14 immediately before the pressurized quantity of liquid is exhausted.
  • the hollow stem 62 is of such length as to terminate at a position immediately above the piston ring 52 when it is held in its lowermost position as shown.
  • the piston ring 52 leaves the lower end of the hollow stem 62 immediately before the piston ring reaches the lowermost position.
  • the piston 57 has a side opening 162 (see FIG. 4 also) for communicating the interior thereof with the space defined between the piston and the cylinder 30.
  • the cylinder 30 also has a side opening 164 which opens to the interior of the receptacle 20.
  • the valve mechanism is provided by the piston ring 52, the lower portion of the hollow stem 62 and the two openings 162 and 164.
  • the chamber 14 While the valve mechanism remains closed, i.e., the piston ring 52 is received on the hollow stem 62 as shown in FIG. 5, the chamber 14 is communicated with only the discharge valve 63 through the hollow stem, so that the pressure in the chamber is transmitted to the discharge valve. However, when the valve mechanism is opened, i.e., the piston ring leaves the hollow stem, the chamber 14 is communicated with the interior of the receptacle 20 through the opening 60 and the two side openings 162 and 164. Thus, the pressure in the chamber 14 decreases rapidly to atmospheric pressure and accordingly to spray device 10 ceases to discharge the pressurized liquid from the nozzle 156.
  • FIGS. 6 and 7 there is illustrated a second embodiment of the present invention in which a flexible tube is employed to communicate the liquid pressurizing chamber 14 with the discharge valve 63.
  • the upper end of the flexible tube is fixedly received in a coupling member 172 of the discharge valve 63 and the lower end thereof is fixedly received in a bore 174 formed in the piston 57.
  • the piston 57 also has an axial bore 176 communicating with the bore 174, which opens to an enlarged end bore 178.
  • the piston ring 52 mounted around the lower periphery of the piston 57 is of a conventional O-ring type.
  • valve 180 which serves as the check valve 40 as well as the valve mechanism of the FIG. 1 embodiment.
  • the valve 180 includes a body 182 which is held in place on the bottom surface of the cylinder 30 by suitable means (not shown).
  • the body 182 has a central bore 186 extending therethrough and a side port 188 communicating with the bore 186.
  • An inlet tube 36 is fixedly received in the lower portion of the bore 186, the lower end of the tube being disposed closely adjacent the bottom surface of the receptacle 20.
  • valve member 190 is mounted on the valve body 182 in the manner as shown in FIG. 6.
  • the valve member 190 has an annular opening 192 formed in the upper end wall thereof, which is not quite complete with a break being provided so that the inner circular portion 194 is elastically connected to the remaining portion of the valve member to serve as a check valve.
  • the valve member 190 also includes a projection 196 which extends radially outwardly from its upper peripheral portion and adapted to be engaged by the lower end of the piston 57. When the piston 57 moves downwardly, it engages the projection 196 and peels or forces the cylindrical wall 198 outwardly, bringing the: side port 188 into communication with the interior of the cylinder 30.
  • the liquid pressurizing chamber 14 is communicated with the receptacle 20 through the side port 188, bore 186 and inlet tube 36, causing a rapid reduction of the pressure in the chamber 14. Accordingly, the spray device ceases to produce spray mist.
  • FIG. 8 shows a modification of the valve member 190 employed in the FIG. 6 embodiment.
  • the valve member 190' is different from that shown in FIG. 7 in that there is no inner circular portion corresponding to that indicated at 194 in FIG. 7. 1n this embodiment,
  • the central bore 186 of the valve body 182 is closed at its top.
  • the cylindrical wall 198 is forced outwardly due to the pressure difference between the chamber 14 and the receptacle 20, so that the liquid is sucked up through the side port 188.
  • the piston 57 moves downwardly, it engages the projection 196 and forces the cylindrical wall 198' outwardly, so that the pressurized liquid escapes from the chamber 14 into the receptacle 20 through the inlet tube 36.
  • FIG. 9 there is illustrated a third embodiment of the present invention in which a cup-shaped valve member 204 is held in place on the bottom of the cylinder 30.
  • the valve member 204 includes a bottom wall 206 which is formed with an incomplete annular opening 208 to provide a check valve.
  • the cylinder 30 has a plurality of side openings 210 which are normally closed by the peripheral surface of the valve member 204.
  • the valve member 204 is also tapered at its upper outer periphery 212 for the purpose to be described below.
  • the piston 57 has an end bore 214 which is tapered upwardly to slidably receive the tapered peripheral end 212 of the valve member 204.
  • a plurality of grooves 216 are formed in the wall of the end bore 214 to communicate the interior of the valve member 204 with the exterior thereof when the tapered peripheral end 212 is brought into surface contact with the wall of the end bore 214.
  • valve member 204 When the piston 57 moves downwardly, it engages the tapered peripheral end 212 of the valve member 204 and then forces the peripheral wall thereof inwardly, opening the side openings 210. Thus, the interior of the valve member 204 is communicated with the receptacle 20 through the grooves 216 and side openings 210, so that the pressurized liquid is discharged into the receptacle.
  • FIG. 10 there is shown a fourth embodiment of the present invention which is identical to that of FIG. 1 in that the pressurized liquid in the chamber 14 is discharged into the receptacle 20 through two side openings 152 and 164 formed in the piston 57 and the cylinder 30, respectively.
  • the piston 57 has an end bore 214 of considerable axial length in which a valve member 220 is slidably mounted.
  • the valve member is biased downwardly by a compression spring 222.
  • the piston 57 also includes an inwqrdly extedning flange 224 serving as a seat for the valve member 222.
  • the valve member 222 has a central opening 226 which communicates with a plurality of radially extending grooves 228 formed in the lower surface thereof.
  • the side opening 162 of the piston 57 is so positioned as to be closed by the side wall of the valve member 222 when the valve member is held in the position shown.
  • the piston 57 is also grooved at its lower and upper periphery to provide seats for two O-ring seals 230 and 232, respectively.
  • a check valve 40 is provided on the bottom of the cylinder 30 and includes an upwardly extending projection 234 which is formed integral with the innew circular valve portion 194 of the valve 40.
  • the check valve 40 remains open so that the liquid is sucked up into the liquid pressurizing chamber 14 through the inlet tube 36.
  • the piston 57 moves downwardly under the action of the spring 87, the valve member 220 engages the top surface of the projection 234 and then is moved upwardly relative to the piston 57 against the action of the spring 222. This will open the side opening 162, so that the cylinder 30 is communicated with the receptacle 20 through the side openings 162 and 164.
  • a passage 130 of the flexible tube 170 is also communicated with the receptacle 20 through the central opening 226 and the radial grooves 228.
  • FIG. 11 shows a modification of the valve member 220 of FIG. 10.
  • the valve member 220 includes a greater-diameter portion 220a which is adapted to be slidably received in the end bore 214.
  • the valve memher 220' also includes a small-diameter portion 220b' and is formed with a central bore 226 which communicates with a plurality of radially extending grooves 228 formed at the lower end of the valve member.
  • FIG. 12 there is shown a fifth embodiment of the present invention which is identical to that of FIG. 9 in that the spray is cut off by letting the pressure out of the chamber 14 into the receptacle 20 through side openings 210 of the cylinder 30.
  • a check valve 40 of the same construction as that of FIG. 1, on which is mounted a cylindrical spring guide 240 having a lower peripheral flange 240a and an upper peripheral flange 24012.
  • the lower peripheral flange 240a is of a diameter slightly larger than the inner diameter of the cylinder 30, so that the guide 240 may be received in the cylinder with a friction fit therein.
  • the upper peripheral flange 24012 is of a diameter somewhat smaller than the inner diameter of the cylinder, so that a valve member 242 is free to move axially between the cylinder wall and the peripheral surface of the upper flange 240b.
  • valve member 242 includes a radially inwardly extending flange 242a which is normally urged against the undersurface of the upper flange 240b by the action of a spring 244 received on the cylindrical guide 240. In the position shown, the valve member 242 closes the side openings 210 of the cylinder, blocking the communication between the cylinder and receptacle 20.
  • the piston 57 has a piston ring 52 attached thereto, which is adapted to be slidably received in the cylinder 30 in liquid-tight manner.
  • the piston ring 52 includes a plurality of legs 52a extending downwardly therefrom, between which are formed passages 246 for communicating the inner cylindrical space of the piston ring 52 with an annular space 248 defined between the legs 52a and the inner wall of the cylinder.
  • FIGS. 13 and 14 there is illustrated a sixth embodiment of the present invention which is characterized in that the spray is cut off by blocking the communication between the liquid pressurizing chamber 14 and the discharged valve 63 immediately before the pressurized quantity of liquid is exhausted.
  • the hollow stem 62 which is formed of suitable rigid material such as metal and hard plastic, is fixed with respect to the spray head 13, as in the embodiment of FIG. 1.
  • the lower end of the hollow stem 62 is closed and is provided with one or more side ports 250 instead.
  • the piston ring 52 moves upwardly from the position of FIG. 13, so that the interior of the hollow stem 62 is communicated with the liqud pressurizing chamber 14 through the side ports 250, as is seen in FIG. 14.
  • This upward movement of the piston ring 52 acts to open the check valve 40 and suck liquid up into the chamber 14 through the inlet tube 36 and the opened check valve.
  • FIG. 15 there is illustrated a seventh embodiment of the present invention which operates on the same principle as the FIG. 13 embodiment to cut off the spray immediately before the pressurized quantity of liquid is exhausted.
  • a flexible tube 170 is employed to communicate the liquid pressurizing chamber 14 with the discharge valve 63.
  • the piston 57 has an end before 178 converging upwardly to provide a valve seat 179.
  • a valve member 154 stands on the check valve 140 in upright manner, and comprises a base 254a, a stem 254b and a valve head 2540.
  • the valve head is formed in the shape of an umbrella.
  • the valve member 254 is formed of suitable elastic material such as rubber and soft plastic so that the valve head 254C is received on the valve seat 179 in liquid-tight manner.
  • the valve member 254 is free to move upwardly from the position shown in FIG. 15 until the base 2540 is restricted by a cup-shaped member 256.
  • the cup-shaped member has an opening 258 formed in the bottom thereof that is greater in diameter than the stern 254b of the valve member 254.
  • valve head 2540 is attracted to the valve seat 179 of the piston due to the action of the liquid flowing at high speeds through an upwardly converging space defined between the valve head 254C and the valve seat 179. This will move the valve member 254 upwardly so that the valve head 2540 is received on the valve seat 179 in liquid-tight manner. Thus, the spraying device ceases to produce spray mist.
  • FIG. 16 there is illustrated an eighth embodiment of the present invention which is imilar to those of FIGS. 13 and 15 in that the spray is cut off by blocking the communication between the liquid pressurizing chamber 14 and the discharge valve 63 immediately before the pressurized quantity of liquid is exhausted.
  • the piston 57 has a piston ring 52 mounted thereon and is formed with an end bore 178 which converges upwardly to provide a valve seat 179.
  • a support member 260 is fixedly mounted on the check valve 40 at the bottom of the cylinder and has a central opening 262 formed therein.
  • the support member includes a downwardly extending leg portion 260a which is of such length that the opening movement of the check valve 40 is not prevented by the support member 260.
  • the support member also includes an upwardly extending cylindrical portion 2611b in which the lower end of a coil spring 264 is received. The upper end of the spring 264 is connected to a generally conical valve member 254.
  • FIG. 17 there is illustrated a ninth embodiment of the present invention in which a ball valve 270 is provided in the piston 57 for blocking the communication between the liquid pressurizing chamber 14 and the discharge valve (not shown).
  • the piston 57 has an end bore 178 in which a coil spring 272 is received to urge a ball 274 against a valve seat 276 provided by a ring-like member 278.
  • the strength of the coil spring 272 is so adjusted that the ball valve 270 remains open while the pressure in the chamber 14 is above a certain predetermined level which is slightly higher than the minimum pressure producing spray mist.
  • the ball valve 270 is closed, blocking the communication between the chamber 14 and the discharge valve.
  • FIG. 18 there is illustrated a tenth embodiment of the present invention which is smillar to those of FIGS. 13, 15, 16 and 17 in the provision of a valve mechanism for blocking the communication between the liquid pressurizing chamber 14 and the discharge valve (not shown).
  • the valve mechanism is provided by the lower end of the piston 57 and the upper surface of the check valve 40.
  • the piston 57 is tapered at its lower end to provide small annular room for the pressurized liquid between the piston, cylinder and check valve, when the piston is moved to its lowermost position where the lower end thereof is in fluid-tight contact with the upper surface of the check valve.
  • the discharge valve is isolated from the liquid pressurizing chamber 14 to cut off the spray immediately before the pressurized quantity of liquid is exhausted.
  • the present invention provides an improved liquid spraying device which offers many advantages over the prior art devices.
  • the sprayer is completely safe whether or not in the cocked position, and requires no external power source to produce the spray mist. Since the container is not pressurized but rather serves as a convenient reservoir fior the liquid to be sprayed, it is not subject to the explosion hazards of the common aerosol spray bombs.
  • valve mechanism provided therein operates to block the communication between the liquid pressurizing chamber and the discharge valve immediately before the piston reaches its lowermost position, so as to produce a spray discharge only while the pressure in the chamber remains above the minimum value producing spray mist, an extremely high quality, very fine mist is maintained during the spraying as well as a sharp cut-off of the spray is accomplished thereby offering many other attendant advantages as described above.
  • a liquid spraying device comprising container means including a receptacle for holding a quantity of liquid and having an opening for filling the receptacle with the liquid, cover means removably mounted on the receptacle to close the opening and including an upwardly extending cylindrical guide, spray head means rotatably mounted on the cover means, slide means movably mounted within the cylindrical guide and operably connected to the spray head means whereby rotation of the spray head means relative to the cover means in a fixed direction moves the slide means upwardly, liquid pressurizing pump means including a cylinder and a piston defining a liquid pressurizing chamber, the cylinder being operably connected in fixed relation to the cover means and the piston being operably connected in fixed relation to the slide means, a spring mounted in the spray head means for biasing the slide means in a direction to decrease the volume of the liquid pressurizing chamber to thereby pressurize liquid therein, an inlet conduit for conducting the liquid in the receptacle to the chamber, an inlet check valve in the conduit, a discharge valve
  • valve mechanism operates to cut off the spray by letting the pressure out of the liquid pressurizing chamber immediately before the pressurized quantity of liquid is exhausted.
  • a liquid spraying device in which the valve mechanism operates to cut off the spray by blocking the communication between the liquid pressurizing chamber and the discharge valve immediately before the pressurized quantity of liquid is exhausted.
  • a liquid spraying device comprising a container having a reservoir for holding a quantity of liquid and an opening for filling the same with liquid, a cover unit adapted to close the opening and including a cylinder extending downwardly into the container, the cover unit also including a cylindrical guide extending upwardly therefrom and having a pair of diametrically opposite axial grooves formed internally thereof, a spray head rotatably mounted on the cylindrical guide, a slide member mounted in the cylindrical guide for vertical movement therein and including a piston slidably received in the cylinder, the piston and cylinder defining a liquid pressurizing chamber therebetween, the slide member having a sinuous groove formed externally thereof which comprises a pair of diametrically opposite axial sections and a pair of intersecting sections each intersecting at one end the upper end of one axial section and at the other end the lower end of the other axial section, a cylindrical member mounted in the spray head for transmitting the rotational movement of the head to the slide member, two balls each rotatably received in one of the axial grooves
  • a liquid spraying device in which the passage means comprises a hollow stem formed of rigid material and fixed with respect to the spray head, the piston having a piston ring mounted thereon which is formed with an opening adapted to slidably receive the lower portion of the hollow stem in liquid-tight manner, the hollow stem being of such length that the piston ring leaves the lower end of the hollow stem immediately before the pistron reaches its lowermost position, the piston and cylinder having side openings formed therein, the valve mechanism being provided by the piston ring, the lower portion of the hollow stem and the two side openings.
  • a liquid spraying device in which the passage means comprises a flexible tube connected at its upper end to the discharge valve and at its lower end to the piston.
  • valve mechanism comprises a body having a bore communicating with the receptacle through the inlet conduit, the body being held in place on the bottom of the cylinder and having a side port communicating with the bore, and a valve member mounted on the body and having a wall which is normally held against the body to close the side port, the valve member being provided with a projection which is adapted to be engaged by the lower end of the piston to force the wall away from the body to thereby open the side port immediately before the piston reaches its lowermost position.
  • valve mechanism comprises a valve member held in place on the bottom of the cylinder, the cylinder having at least one side openings which are normally closed by the outer surface of the valve member, the valve member being tapered at its upper periphery, the piston having an end bore converging upwardly and a plurality of grooves formed in the wall of the end bore, the end bore being adapted to slidably receive the tapered periphery of the valve member to force it inwardly to thereby open the side openings of the cylinder immediately before the piston reaches its lowermost position.
  • valve mechanism comprises a valve member slidably received in an end bore of the piston, the valve member being normally urged against a valve seat provided at the lower end of the piston by the action of a spring, the piston having a side opening which is normally closed by the outer periphery of the valve member, the cylinder having a side opening for communicating the liquid pressurizing chamber with the receptacle when the valve member moves away from the valve seat, the check valve including an upwardly extending projection which is adapted to engage the valve member and move it upwardly relative to the piston immediately before the piston reaches its lowermost position.
  • valve mechanism comprises a valve member slidably received in an end bore of the piston, the valve member being normally urged against a valve seat provided at the lower end of the piston by the action of a spring, the piston having a side opening which is normally closed by the outer periphery of the valve member, the cylinder having a side opening for communicating the liquid pressurizing chamber with the receptacle when the valve member moves away from the valve seat, the valve member having a downwardly extending projection which is adapted to engage the check valve immediately before the piston reaches its lowermost position, the valve member having an axial bore extending therethrough and at least one radially extending grooves formed at the lower end of the projection and communicating with the bore 11.
  • valve mechanism comprises a spring guide held in place on the bottom of the cylinder and having a peripheral flange, a valve member slidably received in the cylinder and biased against the undersurface of the peripheral flange by a spring received on the spring guide, the valve member normally closing at least one side openings formed in the cylinder, and a piston ring mounted to the lower end of the piston and having a plurality of legs, between which are formed a plurality of passages for communicating the liquid pressurizing chamber with the side openings immediately before the piston reaches its lowermost position.
  • a liquid spraying device in which the passage means comprises a hollow stem formed of rigid material and fixed with respect to the spray head, the piston having a piston ring mounted thereon which is formed with an opening adapted to slidably receive the lower portion of the hollow stern in liquid-tight manner, the hollow stem being closed at its lower end and provided with at least one side ports adjacent the lower end, the side ports: being adapted to be closed by the piston ring immediately before the piston reaches its lowermost position.
  • valve mechanism comprises a valve member standing in upright manner on the check valve and including a head in the shape of an umbrella, a cutshaped member held in place on the check valve and having an opening through which the valve member extends, and a valve seat provided in an end bore of the piston.
  • valve mechanism comprises a support member held in place on the check valve so as not to hinder the opening movement of the check valve, a spring having its lower end secured to the support member, a conical valve member connected to the upper end of the spring, and a valve seat provided in end bore of the piston.
  • valve mechanism comprises a spring received in an end bore of the piston, a valve seat provided at the lower end of the end bore, and a ball normally urged against the valve seat by the action of the spring, the spring being so adjusted that the ball moves away from the valve seat when the pressure in the liquid pressurizing chamber increases above a predetermined level which is slightly higher the minimum pressure producing spray mist.
  • valve mechanism is provided by the lower end of the piston and the upper surface of the check valve, the lower end of the piston being tapered to form an annular space between the piston, the cylinder and the check valve when the lower end of the piston comes into liquid-tight contact with the upper surface of the check valve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
US00349687A 1972-04-15 1973-04-10 Liquid spraying device Expired - Lifetime US3799448A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP4455272U JPS5225692Y2 (it) 1972-04-15 1972-04-15
JP4533972U JPS5145689Y2 (it) 1972-04-17 1972-04-17
JP4534072U JPS5145690Y2 (it) 1972-04-17 1972-04-17
JP1947373A JPS5720024B2 (it) 1973-02-17 1973-02-17
JP2043073A JPS5720023B2 (it) 1973-02-19 1973-02-19

Publications (1)

Publication Number Publication Date
US3799448A true US3799448A (en) 1974-03-26

Family

ID=27520136

Family Applications (1)

Application Number Title Priority Date Filing Date
US00349687A Expired - Lifetime US3799448A (en) 1972-04-15 1973-04-10 Liquid spraying device

Country Status (8)

Country Link
US (1) US3799448A (it)
AU (1) AU443332B2 (it)
CA (1) CA985230A (it)
CH (1) CH564377A5 (it)
DE (2) DE7314513U (it)
FR (1) FR2181347A5 (it)
GB (1) GB1408497A (it)
IT (1) IT983895B (it)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949939A (en) * 1975-03-26 1976-04-13 Smithkline Corporation Metered spray device
US4051983A (en) * 1975-11-19 1977-10-04 Diamond International Corporation Pump sprayer
US4142653A (en) * 1977-09-21 1979-03-06 The Continental Group, Inc. Flexible bag pump-type dispenser for mounting on cans
US4167941A (en) * 1976-10-05 1979-09-18 James D. Pauls, Ltd. (Limited Partnership) Mechanically operated dispensing device for increasing discharge pressure and dispensing time
US4196828A (en) * 1979-01-10 1980-04-08 The Clorox Company Manually charged fluid dispenser having a hydraulically biased charging rod
US4260082A (en) * 1975-12-05 1981-04-07 The Afa Corporation Manually operated liquid dispensing device
US4949877A (en) * 1989-05-11 1990-08-21 Bobrick Washroom Equipment, Inc. Fluid dispenser valve
US4986453A (en) * 1989-05-15 1991-01-22 The Pittway Corporation Atomizing pump
US5285966A (en) * 1991-10-04 1994-02-15 Czewo-Plast Kunststofftechnik Gmbh Spraying apparatus having internal chamber selectively pressurized by a pressurizing device
US5655688A (en) * 1994-10-19 1997-08-12 Aptargroup, Inc. Atomizing pump with high stroke speed enhancement and valve system therefor
US5850948A (en) * 1996-09-13 1998-12-22 Valois S.A. Finger-operable pump with piston biasing post
US6095434A (en) * 1997-10-08 2000-08-01 Arizona Mist, Inc. Portable automatic misting device
US6264120B1 (en) * 1997-10-08 2001-07-24 Arizona Mist, Inc. Portable automated misting device
US20030150884A1 (en) * 2000-06-14 2003-08-14 Heinz Schneider Aerosol spray can with pressure reducing valve
US20040139964A1 (en) * 2003-01-17 2004-07-22 Langford Stanley C. Actuation inhibitor for metered dose inhalers
US20040238572A1 (en) * 2001-08-20 2004-12-02 Blake William S Mechanically pressurized dispenser system
US20050048428A1 (en) * 2003-08-25 2005-03-03 Lim Walter K. Device and method for extinguishing a candle flame
US20060280630A1 (en) * 2005-06-09 2006-12-14 Lg Electronics Inc. Linear compressor
US20070090205A1 (en) * 2005-06-24 2007-04-26 Boehringer Ingelheim International Gmbh Nebuliser and container
US7607592B1 (en) 2004-11-08 2009-10-27 Kim Sang B Accessories for water and beverage bottles
US8177101B1 (en) * 2007-02-06 2012-05-15 William Sydney Blake One turn actuated duration spray pump mechanism
US8286837B1 (en) * 2008-07-14 2012-10-16 William Sydney Blake One turn actuated duration dual mechanism spray dispenser pump
US9415401B2 (en) 2012-04-04 2016-08-16 Alternative Packaging Solutions Llc One turn actuated duration spray pump mechanism
WO2020092370A1 (en) * 2018-10-29 2020-05-07 Aptargroup, Inc. Dispensing closure for a container
WO2020186018A1 (en) * 2019-03-12 2020-09-17 Scentair Technologies, Llc Fragrance diffusion collector assembly, exchangeable fragrance cartridge, and fragrance diffusion system and method

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2378572A1 (fr) * 1977-01-28 1978-08-25 Normos Norbert Tete de pulverisation de type nouveau
DE3941088A1 (de) * 1989-12-13 1991-06-20 Alfred Von Schuckmann Fluessigkeitsspruehvorrichtung
DE69028100T2 (de) 1989-12-28 1997-03-13 Yoshino Kogyosho Co., Ltd., Tokio/Tokyo Flüssigkeitszerstäuber
FR2668721B1 (fr) * 1990-11-02 1994-09-16 Boue Jean Claude Distributeur haute pression sans gaz propulseur, notamment pour vaporiser un liquide.
DE10154237A1 (de) * 2001-11-07 2003-05-15 Steag Microparts Gmbh Zerstäuber für manuelle Betätigung
GB0913812D0 (en) * 2009-08-07 2009-09-16 Reckitt & Colman Overseas Domestic liquid spraying device
CN112007793B (zh) * 2020-09-03 2021-04-06 江门市润景实业有限公司 一种喷头多样化的硅酮密封胶用辅助喷涂器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1845200A (en) * 1929-03-16 1932-02-16 Hyman R Segal Atomizer
US2572213A (en) * 1947-02-26 1951-10-23 Steinberg Gregory Atomizer
FR1503684A (fr) * 1966-10-10 1967-12-01 Idees Perfectionnements aux appareils distributeurs de doses volumétriques définies par une capacité de volume variable
US3471065A (en) * 1965-09-20 1969-10-07 Afa Corp Liquid spraying device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1396494A (en) * 1920-04-05 1921-11-08 Wright Richard Air-pump
US2835417A (en) * 1956-06-04 1958-05-20 Joseph L Kiraly Metered dosage valve
US3187960A (en) * 1964-05-08 1965-06-08 Sterling Drug Inc Non-metallic pump dispenser
CA1078796A (en) * 1972-03-30 1980-06-03 Takamitsu Nozawa Liquid spraying device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1845200A (en) * 1929-03-16 1932-02-16 Hyman R Segal Atomizer
US2572213A (en) * 1947-02-26 1951-10-23 Steinberg Gregory Atomizer
US3471065A (en) * 1965-09-20 1969-10-07 Afa Corp Liquid spraying device
FR1503684A (fr) * 1966-10-10 1967-12-01 Idees Perfectionnements aux appareils distributeurs de doses volumétriques définies par une capacité de volume variable

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949939A (en) * 1975-03-26 1976-04-13 Smithkline Corporation Metered spray device
US4051983A (en) * 1975-11-19 1977-10-04 Diamond International Corporation Pump sprayer
US4260082A (en) * 1975-12-05 1981-04-07 The Afa Corporation Manually operated liquid dispensing device
US4167941A (en) * 1976-10-05 1979-09-18 James D. Pauls, Ltd. (Limited Partnership) Mechanically operated dispensing device for increasing discharge pressure and dispensing time
US4142653A (en) * 1977-09-21 1979-03-06 The Continental Group, Inc. Flexible bag pump-type dispenser for mounting on cans
US4196828A (en) * 1979-01-10 1980-04-08 The Clorox Company Manually charged fluid dispenser having a hydraulically biased charging rod
US4949877A (en) * 1989-05-11 1990-08-21 Bobrick Washroom Equipment, Inc. Fluid dispenser valve
US4986453A (en) * 1989-05-15 1991-01-22 The Pittway Corporation Atomizing pump
US5285966A (en) * 1991-10-04 1994-02-15 Czewo-Plast Kunststofftechnik Gmbh Spraying apparatus having internal chamber selectively pressurized by a pressurizing device
US5655688A (en) * 1994-10-19 1997-08-12 Aptargroup, Inc. Atomizing pump with high stroke speed enhancement and valve system therefor
US5850948A (en) * 1996-09-13 1998-12-22 Valois S.A. Finger-operable pump with piston biasing post
US6095434A (en) * 1997-10-08 2000-08-01 Arizona Mist, Inc. Portable automatic misting device
US6264120B1 (en) * 1997-10-08 2001-07-24 Arizona Mist, Inc. Portable automated misting device
US20030150884A1 (en) * 2000-06-14 2003-08-14 Heinz Schneider Aerosol spray can with pressure reducing valve
US6802461B2 (en) * 2000-06-14 2004-10-12 Thomas Gmbh Aerosol spray can with pressure reducing valve
US20040238572A1 (en) * 2001-08-20 2004-12-02 Blake William S Mechanically pressurized dispenser system
US7845521B2 (en) * 2001-08-20 2010-12-07 Alternative Packaging Solutions, LLP Mechanically pressurized dispenser system
US6971381B2 (en) * 2003-01-17 2005-12-06 Stanley C. Langford Actuation inhibitor for metered dose inhalers
US20040139964A1 (en) * 2003-01-17 2004-07-22 Langford Stanley C. Actuation inhibitor for metered dose inhalers
US20050048428A1 (en) * 2003-08-25 2005-03-03 Lim Walter K. Device and method for extinguishing a candle flame
US7607592B1 (en) 2004-11-08 2009-10-27 Kim Sang B Accessories for water and beverage bottles
US7922463B2 (en) * 2005-06-09 2011-04-12 Lg Electronics Inc. Linear compressor
US20060280630A1 (en) * 2005-06-09 2006-12-14 Lg Electronics Inc. Linear compressor
US7950388B2 (en) * 2005-06-24 2011-05-31 Boehringer Ingelheim International Gmbh Nebuliser and container
US20070090205A1 (en) * 2005-06-24 2007-04-26 Boehringer Ingelheim International Gmbh Nebuliser and container
US8177101B1 (en) * 2007-02-06 2012-05-15 William Sydney Blake One turn actuated duration spray pump mechanism
US8286837B1 (en) * 2008-07-14 2012-10-16 William Sydney Blake One turn actuated duration dual mechanism spray dispenser pump
US9415401B2 (en) 2012-04-04 2016-08-16 Alternative Packaging Solutions Llc One turn actuated duration spray pump mechanism
US9751102B2 (en) 2012-04-04 2017-09-05 Alternative Packaging Solutions Llc Method for dispensing a product from a container
US10151692B2 (en) 2012-04-04 2018-12-11 Alternative Packaging Solutions, Llc Method for dispensing a product from a container
WO2020092370A1 (en) * 2018-10-29 2020-05-07 Aptargroup, Inc. Dispensing closure for a container
WO2020186018A1 (en) * 2019-03-12 2020-09-17 Scentair Technologies, Llc Fragrance diffusion collector assembly, exchangeable fragrance cartridge, and fragrance diffusion system and method
US11730846B2 (en) 2019-03-12 2023-08-22 Scentair Technologies, Llc Fragrance diffusion collector assembly, exchangeable fragrance cartridge, and fragrance diffusion system and method

Also Published As

Publication number Publication date
AU5452473A (en) 1973-12-20
DE2319265C3 (de) 1979-07-05
GB1408497A (en) 1975-10-01
FR2181347A5 (it) 1973-11-30
CH564377A5 (it) 1975-07-31
CA985230A (en) 1976-03-09
AU443332B2 (en) 1973-12-20
DE2319265A1 (de) 1973-10-25
DE7314513U (de) 1979-11-08
DE2319265B2 (de) 1978-10-26
IT983895B (it) 1974-11-11

Similar Documents

Publication Publication Date Title
US3799448A (en) Liquid spraying device
US3797748A (en) Liquid spraying device
US4222501A (en) Dual chamber, continuous action dispenser
US3471065A (en) Liquid spraying device
US5511538A (en) Super atomizing nonchlorinated fluorocarbon medication inhaler
US4277001A (en) Invertible miniature atomizer of manual type
US4071172A (en) Manually operated liquid dispenser
US6415956B1 (en) Hand holdable pump spray apparatus
US5474215A (en) Liquid jet blower
EP3881938B1 (en) Metered and active sprayer devices with aerosol functionality
US4183449A (en) Manually operated miniature atomizer
US4197884A (en) Airless sprayer and pressurizing system
US3940029A (en) Rechargeable sprayer with improved valve system and charge cycle limit stop therefor
US5865350A (en) Spray bottle with built-in pump
US4596344A (en) Manually actuated dispenser
CA2147566A1 (en) Dispensing pump
JPS6251150B2 (it)
EP0536617A1 (en) Manually operated pump for dispensing liquid or creamy substances at a predetermined constant pressure
JP2809605B2 (ja) 液体スプレー用手動予圧縮ポンプと該ポンプを備えた分配器
US4923094A (en) Manually operated pressure build-up pump sprayer
US4053089A (en) Pump for dispensing liquids
JPS63170569A (ja) 非絞り型ポンプ組立物
US4140249A (en) Manual spray pump
KR20190042264A (ko) 디스펜서 펌프
IE920274A1 (en) A device for spraying a fluid by means of a pump that is actuated repeatedly