US3504893A - Spray nozzle assembly - Google Patents

Spray nozzle assembly Download PDF

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US3504893A
US3504893A US662039A US3504893DA US3504893A US 3504893 A US3504893 A US 3504893A US 662039 A US662039 A US 662039A US 3504893D A US3504893D A US 3504893DA US 3504893 A US3504893 A US 3504893A
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liquid
cap
spray nozzle
spray
nozzle assembly
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US662039A
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Rinnosuke Susuki
Hiroshi Hoshi
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LION (LION Corp KK
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Lion Fat and Oil Co Ltd
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Assigned to LION KABUSHIKI KAISHA (LION CORPORATION reassignment LION KABUSHIKI KAISHA (LION CORPORATION MERGER (SEE DOCUMENT FOR DETAILS). JAPAN, EFFECTIVE JAN. 1,1980 Assignors: LION YU-SHI KABUSHIKI KAISHA (THE LION FAT AND OIL CO.LTD.(MERGED INTO)LION KABUSHIKI KAISHA(LION CORPORATION (CHANGE TO)
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3447Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a cylinder having the same axis as the outlet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/04Deformable containers producing the flow, e.g. squeeze bottles
    • B05B11/042Deformable containers producing the flow, e.g. squeeze bottles the spray being effected by a gas or vapour flow in the nozzle, spray head, outlet or dip tube
    • B05B11/043Deformable containers producing the flow, e.g. squeeze bottles the spray being effected by a gas or vapour flow in the nozzle, spray head, outlet or dip tube designed for spraying a liquid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02Spray pistols; Apparatus for discharge
    • B05B7/04Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0425Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid without any source of compressed gas, e.g. the air being sucked by the pressurised liquid

Definitions

  • a spray nozzle assembly having a liquid-atomizing mechanism so designed that a plurality of liquid streams are fed while being rotated spiralwise at high speed so as to collide against each other in a cavity provided adjacent the terminals of the passageways of the streams and that, while taking-in the air located therearound, the collided streams of liquid are atomized.
  • This nozzle assembly features that the sealing-off of the liquid from the liquid container, the control of the diverging angle of spray as well as the size of the atomized liquid particles can be effected all in one procedure, namely, by turning the cap member.
  • the present invention relates to a spray nozzle assembly for use in spraying toilet preparations such as hair lotion and perfume, and also chemical solutions including insecticidal solutions, and more particularly, to a spray nozzle assembly which is suited for use with a volatile material such as petroleum products and which permits the closing off of the liquid from the liquid container as well as the adjustment of the size of the atomized liquid particles with a single manual procedure, namely, tuming the cap of the assembly.
  • spray nozzle assemblies may be roughly grouped into the following two types.
  • One of them which is a vacuum-suction type used frequently in homes, is so designed that a gas current is made to impinge at high speed against a sucked-up liquid stream to thereby atomize the liquid.
  • the other type which is called pressure-feed sprayer which is used frequently in spraying chemical solutions is so designed that two-small sized liquid streams are ejected, under pressure and at high speed, into air with a. predetermined angle relative to each other so that the two jet streams collide against each other to cause the liquid to be atomized.
  • the sprayer of said first type produces relatively fine liquid particles, but in most cases, this is done with a low efficiency.
  • the other type in general, produces larger particles of liquid. Since the sprayer of this latter type is designed so that the liquid streams are adapted to collide against each other outside the nozzles, the ejected liquid will, when ejected at low rate, fall out in drops. Moreover, this latter sprayer has shortcom ings that the control of the conditions such as the shape and the angle of the nozzles and the feed rate of liquid is difficult, and that, for the foregoing reasons, the sprayer requires a structure which is large in scale. Furthermore, where a volatile liquid is contained in a reservoir vessel,
  • Another object of the present invention is to provide a spray nozzle assembly which is applicable not only to a squeezable bottle, but also to a sprayer of the pressurepump type of a large size.
  • Still another object of the present invention is to provide a spray nozzle assembly which, by a mere turning of the cap member, will seal off the liquid contained in the liquid-reservoir and which can be easily controlled of the size of the particles of liquid which is atomized, by a simple manual procedure, namely, by turning the cap of the device.
  • a further object of the present invention is to provide a spray nozzle assembly which has a novel liquid atomizing mechanism and which is capable of ejecting a large amount of finely atomized liquid particles and which permits the user to easily control the diverging angle of the liquid which is ejected through the spray nozzle.
  • Yet a further object of the present invention is to provide a spray nozzle assembly which has a simplified mechanism and which can be manufactured easily.
  • FIG. 1 is a fractional longitudinal cross sectional view of the spray nozzle assembly of the present invention which is in the state of being attached to a squeezable bottle, with the cap being in its closed position;
  • FIG. 2 is a perspective view of the atomizer head which represents one embodiment of the present invention.
  • FIG. 3 is a perspective view of another embodiment of the atomizer head of the present invention.
  • the drawings illustrate the spray nozzle assembly of the present invention which is in the state-of being attached, by utilizing a threaded portion 1a, to a squeezable container 1 made of a synthetic resin or like material.
  • a squeezable container 1 made of a synthetic resin or like material.
  • An atomizer head which is generally indicated at 2 is snappingly attached to a free end portion of the container 1 filled with a liquid for being atomized, by utilizing a projection 5 formed circumferentially on the lower part of the atomizer head cylinder to insure that the head would not come off casually from the mouth of said container 1.
  • the spray head is of a structure comprising a substantially conical-shaped wall member which is so designed as to minimize the pressure of the liquid applied onto the inner face of the wall member, one or more liquid-communicating holes 4 formed through the wall member, a liquid stream revolving portion 3 of a substantially cylindrical shape stemming upwardly from the uppermost end of the conical-shaped wall member, and further a columnar valve member 6 having a semi-globular foremost end and being provided at the upper end of said liquid stream revolving portion 3. As is clearly seen in FIG.
  • the cylindrical liquid stream revolving portion 3 is such that the liquid runs in one direction only and is provided with a plurality of spiral grooves which are three, namely 3a, 3b and 3c in this instance, said spiral grooves being provided with the same pitch and they skirt the periphery of the cylindrical liquid stream revolving portion 3.
  • These three spiral grooves terminate on the end face of the cylindrical portion 3 at such sites that the end face of said portion 3 is divided into three equal sections.
  • the member which is indicated generally by 7 represents a cap which is provided, at the top, with a spray hole 9 which serves also as a valve seat adapted to engage the aforesaid valve member 6 when the cap is closed and further serves as the spray nozzle as a matter of fact.
  • the lower portion adjacent to said hole 9 forms a cavity which surrounds said columnar valve member 6 and constitutes an atomizer chamber 10, from which extends downwardly a bore 8 having an inner diameter slightly larger than the external diameter of the cylindrical liquid stream revolving portion 3. From said bore 8 extends a larger cavity 12 which houses the conicalshaped Wall member of the spray head.
  • the lower part of the inner wall member of the cap 8 is provided with a threaded portion 11 for coupling the cap to either a liquid container 1 or a liquid feed pipe not shown. The mixture of liquid and air is performed sufiiciently in the larger cavity 12 so that outward ejection of liquid is promoted.
  • each of the spiral grooves is of a small cross sectional area which is defined substantially by its own depth.
  • the liquid running through these grooves gains a high speed, and while being passed through the grooves in spiral direction, it is directed towards the exit.
  • the liquid is divided into a plurality of fine streams by virtue of the plurality of grooves, and the fine streams of liquid are made to run spiralwise upwardly along the periphery of the cylinder 3,
  • the running liquid streams take into themselves the air located in the cavity or space of the cap and split into numerous fine particles of liquid.
  • the particles of liquid which have left this part enter into the atomizing chamber where the particles are caused to impinge against each other. While again taking in the ambient air, the liquid particles are further completely atomized into perfectly isolated, individual, extremely fine particles which are then ejected through the spray hole 9. In case the cap is turned through a considerable distance resulting in a greater gap between the valve member 6 and the spray hole 9, the particles of liquid will have a relatively large size and the spray will assume a linear pattern. However, by reducing this gap, the particles of liquid which are to leave from the atomizing chamber 10 will impinge against the valve member 6 and also against the face of the inner wall of the spray hole 9 to thereby be turned into still finer particles.
  • the spray nozzle assembly of the present invention is so designed that the liquid is passed through a plurality of narrow spiral grooves at high speed while taking in air, thus effecting the formation of liquid particles of the first stage; then the particles of liquid thus formed are fed into the atomizing chamber to be mixed with a sufficient amount of air so that substantially complete atomization of the second stage is performed; and furthermore, the atomization of the third stage can be carried out, as required, in the vicinity of the spray hole immediately before the fine liquid particles are ejected therethrough.
  • the spray nozzle assembly of the present invention is completely different from those of the prior art and is based on a novel conception.
  • the spray nozzle assembly of the present invention can be used in many ways. For example, in case it is desired to use this device with a liquid such as perfume, the user will unscrew the cap to an extent that there will be produced a very small gap between the valve member and the spray nozzle so that a wide diverging spray of fine liquid particles may be obtained.
  • FIG. 3 shows another embodiment of the atomizer head of the present invention wherein spiral grooves 3e and 3 which run in opposite directions with the same pitch are provided on the surface of the cylindrical liquid stream revolving portion 3.
  • spiral grooves 3e and 3 which run in opposite directions with the same pitch are provided on the surface of the cylindrical liquid stream revolving portion 3.
  • the spray nozzle assembly of the present invention having the structure illustrated in the drawings bears all of the advantages which have been stated earlier in this specification, and therefore, it should be termed as being an epoch-making spray nozzle assembly.
  • a spray nozzle and cap assembly having axes disposed coaxially and constituting a hollow atomizer head for use on a neck portion of a liquid supply vessel, comprising in combination:
  • a cap member having a generally closed top end and an open skirted lower end, said cap member shaped to freely enclose said conical member in a substantially radially-spaced-apart manner, and to also enclose said skirting member in a constantly but freely slidable engaging manner;
  • said cap member having a spray hole opening axially thereof into the atmosphere and being adapted to be closed by said columnar valve extending thereinto responsive to movement of said cap member relative to said skirting and valve member.
  • a spray nozzle and cap assembly having axes disposed coaxially, and constituting a hollow atomizer head for use on a neck portion of a liquid supply vessel, comprising in combination:
  • a cap member having a generally closed top end and an open skirted lower end, said cap member shaped to freely enclose said conical member in a substantial radially-spaced-apart manner, and to also enclose said cylindrical skirting member in a constantly but freely slidable engaging manner; said cap also including lower peripheral means for engaging said vessel neck on the outer periphery to permit relative axial shifting movement therebetween;
  • said cap having a spray hole opening to the atmosphere axially of the generally closed top end, and said hole being selectively opened and closed by said rounded end of the columnar valve extending thereinto responsive to axial relative movement between said cap member and said valve; and said axial shifting movement of said cap spray hole, end relative to said planar end face and said rounded valve end selectively effects a variable amount and degree of fineness of atomized liquid issuing from said atomizer head.

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
  • Nozzles (AREA)

Description

April 7, 1970: RINNOSUKE susuKl ETAL 3,504,893
SPRAY NOZZLE ASSEMBLY Filed Aug. 21, 1967 FIG. 1
mvsw'row BY CIA-[4 0M M Smtes Patent 3,504,893 SPRAY NOZZLE ASSEMBLY Rinnosuke Susuki, Tokyo, and Hiroshi Hoshi, Chiba-ken, Japan, assignors to Raion Yushi Kabushiki Kaisha, Tokyo, Japan Filed Aug. 21, 1967, Ser. No. 662,039 Claims priority, application Japan, Aug. 20, 1966, 41/ 54,689 Int. Cl. B05b 1/02; B65b; A46b 11/00 U.S. Cl. 239-488 7 Claims ABSTRACT OF THE DISCLOSURE A spray nozzle assembly having a liquid-atomizing mechanism so designed that a plurality of liquid streams are fed while being rotated spiralwise at high speed so as to collide against each other in a cavity provided adjacent the terminals of the passageways of the streams and that, while taking-in the air located therearound, the collided streams of liquid are atomized. This nozzle assembly features that the sealing-off of the liquid from the liquid container, the control of the diverging angle of spray as well as the size of the atomized liquid particles can be effected all in one procedure, namely, by turning the cap member.
BACKGROUND OF THE INVENTION Field of the invention The present invention relates to a spray nozzle assembly for use in spraying toilet preparations such as hair lotion and perfume, and also chemical solutions including insecticidal solutions, and more particularly, to a spray nozzle assembly which is suited for use with a volatile material such as petroleum products and which permits the closing off of the liquid from the liquid container as well as the adjustment of the size of the atomized liquid particles with a single manual procedure, namely, tuming the cap of the assembly.
Description of the prior art Convention spray nozzle assemblies may be roughly grouped into the following two types. One of them, which is a vacuum-suction type used frequently in homes, is so designed that a gas current is made to impinge at high speed against a sucked-up liquid stream to thereby atomize the liquid. The other type which is called pressure-feed sprayer which is used frequently in spraying chemical solutions is so designed that two-small sized liquid streams are ejected, under pressure and at high speed, into air with a. predetermined angle relative to each other so that the two jet streams collide against each other to cause the liquid to be atomized. The sprayer of said first type produces relatively fine liquid particles, but in most cases, this is done with a low efficiency. The other type, in general, produces larger particles of liquid. Since the sprayer of this latter type is designed so that the liquid streams are adapted to collide against each other outside the nozzles, the ejected liquid will, when ejected at low rate, fall out in drops. Moreover, this latter sprayer has shortcom ings that the control of the conditions such as the shape and the angle of the nozzles and the feed rate of liquid is difficult, and that, for the foregoing reasons, the sprayer requires a structure which is large in scale. Furthermore, where a volatile liquid is contained in a reservoir vessel,
the volatile liquid will, during the period in which the spraying operation is suspended, evaporate and escape through the nozzles. Therefore, when the container is filled with a perfume or the like, the user is required, at the end of each spray operation, to remove the atomizer device off the container and attach a cover onto the mouth 3,504,893 Patented Apr. 7, 1970 ice SUMMARY OF THE INVENTION It is, therefore, an object of the present invention to provide a novel spray nozzle assembly which eliminates the foregoing shortcomings of the spray nozzle assemblies of the prior art.
Another object of the present invention is to provide a spray nozzle assembly which is applicable not only to a squeezable bottle, but also to a sprayer of the pressurepump type of a large size.
Still another object of the present invention is to provide a spray nozzle assembly which, by a mere turning of the cap member, will seal off the liquid contained in the liquid-reservoir and which can be easily controlled of the size of the particles of liquid which is atomized, by a simple manual procedure, namely, by turning the cap of the device.
A further object of the present invention is to provide a spray nozzle assembly which has a novel liquid atomizing mechanism and which is capable of ejecting a large amount of finely atomized liquid particles and which permits the user to easily control the diverging angle of the liquid which is ejected through the spray nozzle.
Yet a further object of the present invention is to provide a spray nozzle assembly which has a simplified mechanism and which can be manufactured easily.
The structure and the function of the spray nozzle assembly of the present invention will hereunder be described by referring to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a fractional longitudinal cross sectional view of the spray nozzle assembly of the present invention which is in the state of being attached to a squeezable bottle, with the cap being in its closed position;
FIG. 2 is a perspective view of the atomizer head which represents one embodiment of the present invention; and
FIG. 3 is a perspective view of another embodiment of the atomizer head of the present invention.
The drawings illustrate the spray nozzle assembly of the present invention which is in the state-of being attached, by utilizing a threaded portion 1a, to a squeezable container 1 made of a synthetic resin or like material. Where the spray nozzle assembly of the present invention is used with a pressure pump unit, it is only necessary that the nozzle assembly be coupled to a free end portion of a liquid feed pipe extending from the pump, in lieu of attaching the same to the aforesaid container 1. An atomizer head which is generally indicated at 2 is snappingly attached to a free end portion of the container 1 filled with a liquid for being atomized, by utilizing a projection 5 formed circumferentially on the lower part of the atomizer head cylinder to insure that the head would not come off casually from the mouth of said container 1. The spray head is of a structure comprising a substantially conical-shaped wall member which is so designed as to minimize the pressure of the liquid applied onto the inner face of the wall member, one or more liquid-communicating holes 4 formed through the wall member, a liquid stream revolving portion 3 of a substantially cylindrical shape stemming upwardly from the uppermost end of the conical-shaped wall member, and further a columnar valve member 6 having a semi-globular foremost end and being provided at the upper end of said liquid stream revolving portion 3. As is clearly seen in FIG. 2, the cylindrical liquid stream revolving portion 3 is such that the liquid runs in one direction only and is provided with a plurality of spiral grooves which are three, namely 3a, 3b and 3c in this instance, said spiral grooves being provided with the same pitch and they skirt the periphery of the cylindrical liquid stream revolving portion 3. These three spiral grooves terminate on the end face of the cylindrical portion 3 at such sites that the end face of said portion 3 is divided into three equal sections. The member which is indicated generally by 7 represents a cap which is provided, at the top, with a spray hole 9 which serves also as a valve seat adapted to engage the aforesaid valve member 6 when the cap is closed and further serves as the spray nozzle as a matter of fact. The lower portion adjacent to said hole 9 forms a cavity which surrounds said columnar valve member 6 and constitutes an atomizer chamber 10, from which extends downwardly a bore 8 having an inner diameter slightly larger than the external diameter of the cylindrical liquid stream revolving portion 3. From said bore 8 extends a larger cavity 12 which houses the conicalshaped Wall member of the spray head. The lower part of the inner wall member of the cap 8 is provided with a threaded portion 11 for coupling the cap to either a liquid container 1 or a liquid feed pipe not shown. The mixture of liquid and air is performed sufiiciently in the larger cavity 12 so that outward ejection of liquid is promoted.
Now, when the cap 7 is turned to release the connection between the valve member 6 and the spray hole 9, which are normally in the engaging state, to produce a desired amount of space between the hole 9 and the valve member 6, and when, subsequently, the container 1 is squeezed, or alternatively, when the pressure feed pump not shown is actuated, the liquid contained in the reservoir or container 1 is caused to pass through the liquid communicating holes 4, intermixing with air in cavity 12, and into the plurality of spiral grooves 3a, 3b and 30 formed on the cylindrical liquid stream revolving portion 3.
Since the bore 8 of the cap is of a diameter slightly larger than the external diameter of the cylindrical liquid stream revolving portion 3 as has been described above, each of the spiral grooves is of a small cross sectional area which is defined substantially by its own depth. The liquid running through these grooves gains a high speed, and while being passed through the grooves in spiral direction, it is directed towards the exit. In this part of the spray head, the liquid is divided into a plurality of fine streams by virtue of the plurality of grooves, and the fine streams of liquid are made to run spiralwise upwardly along the periphery of the cylinder 3, The running liquid streams take into themselves the air located in the cavity or space of the cap and split into numerous fine particles of liquid. The particles of liquid which have left this part enter into the atomizing chamber where the particles are caused to impinge against each other. While again taking in the ambient air, the liquid particles are further completely atomized into perfectly isolated, individual, extremely fine particles which are then ejected through the spray hole 9. In case the cap is turned through a considerable distance resulting in a greater gap between the valve member 6 and the spray hole 9, the particles of liquid will have a relatively large size and the spray will assume a linear pattern. However, by reducing this gap, the particles of liquid which are to leave from the atomizing chamber 10 will impinge against the valve member 6 and also against the face of the inner wall of the spray hole 9 to thereby be turned into still finer particles. As a result, a spray which is of an inverted conical shape defined by the angle formed by the gap between the valve member 6 and the spray hole 9 is obtained. This is partly due to the reduced axial length of the engaged portion between the cylindrical liquid stream revolving portion 3 and the bore 8 as a result of the turning of the cap.
As has been described, the spray nozzle assembly of the present invention is so designed that the liquid is passed through a plurality of narrow spiral grooves at high speed while taking in air, thus effecting the formation of liquid particles of the first stage; then the particles of liquid thus formed are fed into the atomizing chamber to be mixed with a sufficient amount of air so that substantially complete atomization of the second stage is performed; and furthermore, the atomization of the third stage can be carried out, as required, in the vicinity of the spray hole immediately before the fine liquid particles are ejected therethrough. Thus, the spray nozzle assembly of the present invention is completely different from those of the prior art and is based on a novel conception.
When it is intended to discontinue the use of the device, it is only necessary for the user to screw the cap until it assumes its initial position where the valve member 6 was in engagement with the spray hole 9. By doing so, the interior of the container 1 is perfectly shut off of its communication with the air located externally thereof. For this reason, even in case the content is a volatile liquid, there is no fear that the liquid will evaporate and become lost. Moreover, the spray nozzle assembly of the present invention can be used in many ways. For example, in case it is desired to use this device with a liquid such as perfume, the user will unscrew the cap to an extent that there will be produced a very small gap between the valve member and the spray nozzle so that a wide diverging spray of fine liquid particles may be obtained. In case it is intended to use this device with a liquid such as hair shampoo, the cap will be turned through a considerable distance and the container will be squeezed gently. By doing so, spray which is closer to a linear stream is obtained. It is apparent that selective axial shifting movement of the cap spray-hole-end relative to the valve and planar end of the cylindrical skirting member 3, selectively effects a variable amount, degree and type of spray of the liquid issuing therefrom.
FIG. 3 shows another embodiment of the atomizer head of the present invention wherein spiral grooves 3e and 3 which run in opposite directions with the same pitch are provided on the surface of the cylindrical liquid stream revolving portion 3. In this instance, the currents of liquid which are passed through the grooves are caused to collide against each other at the sites of intersection of the grooves so that the atomizing effect of the aforesaid first stage is further promoted.
The spray nozzle assembly of the present invention having the structure illustrated in the drawings bears all of the advantages which have been stated earlier in this specification, and therefore, it should be termed as being an epoch-making spray nozzle assembly.
It should be understood that various modifications of the spray nozzle assembly may be made by those skilled in the art without departing from the spirit of the present invention. The embodiments described and illustrated herein should be understood as being provided simply by way of example and the present invention is not restricted to these embodiments alone.
What is claimed is:
1. A spray nozzle and cap assembly having axes disposed coaxially and constituting a hollow atomizer head for use on a neck portion of a liquid supply vessel, comprising in combination:
(a) a partially hollow conical member having at least one liquid-communicating hole formed through the conical portion thereof;
(b) a cylindrical shaped skirting member extending coaxially from said conical member and having an upper planar face disposed generally normal to the axis thereof, and having a lower end portion joining with said conical portion;
(c) at least one non-tapering spiral groove of uniform pitch formed in said cylindrical skirting member commencing at a lower portion adjacent the conical member and terminating in said upper planar face;
(d) a columnar valve member with a free end projecting axially from said planar face of said cylindrical member;
(e) a cap member having a generally closed top end and an open skirted lower end, said cap member shaped to freely enclose said conical member in a substantially radially-spaced-apart manner, and to also enclose said skirting member in a constantly but freely slidable engaging manner;
(f) a preliminary air-and-liquid mixing cavity formed between said conical member and a radially enlarged portion of said cap member located adjacent the lower end of said cylindrical skirting member;
(g) a separate cylindrically shaped cavity constituting an atomizing chamber disposed upwardly adjacent of said spiral groove and planar face, within said cap member and spaced upwardly and separately at all times from said preliminary mixing cavity; and
(h) said cap member having a spray hole opening axially thereof into the atmosphere and being adapted to be closed by said columnar valve extending thereinto responsive to movement of said cap member relative to said skirting and valve member.
2. A spray nozzle and cap assembly as defined in claim 1 wherein the preliminary mixing cavity and the atomizing cavity are separate and only indirectly connected by said spiral groove.
3. A spray nozzle and cap assembly as defined in claim 1 wherein said cylindrical skirting member is provided with a plurality of spaced apart, uniform pitch spiral grooves extending upwardly from the lower portion and terminating in the upper planar face end thereof, and dividing said face into equal sections whereby plural streams of mixed liquid and air from the preliminary mixing cavity are more intimately atomized within said atomizing chamber.
4. A spray nozzle and cap assembly as defined in claim 3 wherein said grooves are of the same pitch and disposed in opposite and intersecting directions relative to each other whereby the preliminary mixed liquid and air as it travels up the spiral groove is more intimately intermixed as the liquid streams intersect at intersecting portions of the intersecting grooves.
5. A spray nozzle and cap assembly as defined in claim 3 wherein the atomizer head assembly includes means for separately mounting the same on a neck portion of a liquid supply vessel, said means for mounting same on said vessel including complementary interengaging threads on said outer portion of said vessel neck and on the inner lower peripheral portion of said cap member, and also snap-fitting interengaging a complementary bead and bead-receiving groove means on a lower outer peripheral portion of said conical member and the upper inner peripheral portion of said vessel neck portion.
6. A spray nozzle and cap assembly as defined in claim 3 wherein the cap spray hole is rounded at its inner and outer peripheral edges and the free end of said columnar valve is similarly rounded whereby axially relative movement of the cap and valve selectively effect a variable amount of spray of the atomized liquid in a smoothly divergent manner.
7. A spray nozzle and cap assembly having axes disposed coaxially, and constituting a hollow atomizer head for use on a neck portion of a liquid supply vessel, comprising in combination:
(a) a partially hollow conical member having at least one liquid-communicating hole formed through the conical portion thereof, and having at least partial annular radially-outward projection means on a lower peripheral portion thereof for interlocking engagement with said vessel neck;
(b) a cylindrical shaped skirting member extending coaxially from said conical member and having an upper planar face disposed generally normal to the axis thereof, and having a lower end portion joining with said conical portion;
(c) a plurality of 'three separate, non-intersecting grooves of uniform pitch formed in the outer periphery of said cylindrical skirting member commencing at a lowermost portion adjacent the conical member and terminating in said upper, planar face at three equal-spaced places on said face;
(d) a columnar valve member with a free, rounded end projecting axially from said planar face of said cylindrical skirting member;
(e) a cap member having a generally closed top end and an open skirted lower end, said cap member shaped to freely enclose said conical member in a substantial radially-spaced-apart manner, and to also enclose said cylindrical skirting member in a constantly but freely slidable engaging manner; said cap also including lower peripheral means for engaging said vessel neck on the outer periphery to permit relative axial shifting movement therebetween;
(f) a preliminary air-and-liquid mixing-cavity formed between said conical member and a radially enlarged portion of said cap member and located adjacent the lower end of said cylindrical skirting member, said cavity. being of generally triangular shape in radial cross-section;
(g) a separate, cylindrical shaped cavity constituting an atomizing chamber disposed upwardly adjacent of said spiral grooves and planar face within said cap member, and spaced upwardly at all times from said preliminary mixing cavity; and
(h) said cap having a spray hole opening to the atmosphere axially of the generally closed top end, and said hole being selectively opened and closed by said rounded end of the columnar valve extending thereinto responsive to axial relative movement between said cap member and said valve; and said axial shifting movement of said cap spray hole, end relative to said planar end face and said rounded valve end selectively effects a variable amount and degree of fineness of atomized liquid issuing from said atomizer head.
References Cited UNITED STATES PATENTS 538,006 4/ 1895 Wynell 239488 1,474,253 11/ 1923 Gansz 22521 3,240,404 3/ 1966 Porter et a1 22252l 3,248,022 4/ 1966 Schulman et al 239-488 3,259,282 7/1966 Jellesen 222--521 3,347,463 10/ 1967 Baker 239488 FOREIGN PATENTS 507,356 12/ 1954 Italy.
EVERETT W. KIRBY, Primary Examiner US. Cl. X.R.
US662039A 1966-08-20 1967-08-21 Spray nozzle assembly Expired - Lifetime US3504893A (en)

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FR2563190A1 (en) * 1984-04-20 1985-10-25 Campagnolo Spa CANISTER FOR CYCLISTS
US4896972A (en) * 1987-04-30 1990-01-30 G.L.-S.r.l. Delivery lance for the homogeneous mixing of water-soluble products such as automobile waxes
EP0439109A2 (en) * 1990-01-23 1991-07-31 TAPLAST S.N.C. di Evans SANTAGIULIANA & C. Nebulizer
US5370313A (en) * 1994-01-10 1994-12-06 Beard; Walter C. Sterile liquid dispenser
US5579758A (en) * 1994-07-13 1996-12-03 Century; Theodore J. Sub-miniature aerosolizer with helical flow path formed by threaded insert
US5769327A (en) * 1994-01-05 1998-06-23 Kure Fastighets & Forvaltnings Ab Nozzle for spreading water fog
US5794705A (en) * 1995-04-07 1998-08-18 Korea Institute Of Machinery And Metals Fire extinguishing apparatus having a spraying nozzle assembly
AU701605B2 (en) * 1995-08-31 1999-02-04 Astra Aktiebolag Arrangement in a spray tube mouthpiece
WO2000054887A1 (en) * 1999-03-17 2000-09-21 Emsar, Inc. Apparatus and method for dispensing a medicinal spray
US6283387B1 (en) * 1998-10-27 2001-09-04 Nathan Palestrant Misting head poppet
US20060112589A1 (en) * 2003-09-19 2006-06-01 Herbert Huttlin Apparatus for treating particulate material
US20120181352A1 (en) * 2011-01-18 2012-07-19 Seiko Epson Corporation Liquid ejecting apparatus
US20160023221A1 (en) * 2014-07-24 2016-01-28 John Metz Dual flow cap assembly for container
CN108927300A (en) * 2017-05-22 2018-12-04 郑州洁普智能环保技术有限公司 Anti-blocking sprayer
RU219212U1 (en) * 2023-04-17 2023-07-04 Федеральное государственное бюджетное образовательное учреждение высшего образования "Казанский государственный аграрный университет" (ФГБОУ ВО Казанский ГАУ) BIOLOGICAL SPRAYER

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DE2903902C2 (en) * 1979-02-02 1983-12-08 Eugen 7538 Keltern Bach Valve for pressurized gaseous or liquid media

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US3248022A (en) * 1963-06-21 1966-04-26 Valve Corp Of America Atomizer pump
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US1474253A (en) * 1921-12-10 1923-11-13 Harry G Gansz Tube and closure
US3248022A (en) * 1963-06-21 1966-04-26 Valve Corp Of America Atomizer pump
US3240404A (en) * 1963-07-30 1966-03-15 Product Design & Engineering I Dispensing cap
US3259282A (en) * 1964-09-08 1966-07-05 Jellesen Poul Tube closure device
US3347463A (en) * 1965-09-07 1967-10-17 Bird Machine Co Spray apparatus

Cited By (27)

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Publication number Priority date Publication date Assignee Title
US4667881A (en) * 1984-04-20 1987-05-26 Campagnolo S.P.A. Flask for cyclists
FR2563190A1 (en) * 1984-04-20 1985-10-25 Campagnolo Spa CANISTER FOR CYCLISTS
US4896972A (en) * 1987-04-30 1990-01-30 G.L.-S.r.l. Delivery lance for the homogeneous mixing of water-soluble products such as automobile waxes
EP0439109A2 (en) * 1990-01-23 1991-07-31 TAPLAST S.N.C. di Evans SANTAGIULIANA & C. Nebulizer
EP0439109A3 (en) * 1990-01-23 1991-11-27 Taplast S.N.C. Di Evans Santagiuliana & C. Nebulizer
US5769327A (en) * 1994-01-05 1998-06-23 Kure Fastighets & Forvaltnings Ab Nozzle for spreading water fog
CN1070716C (en) * 1994-01-05 2001-09-12 库里法斯汀赫茨与弗沃特宁斯股份公司 Nozzle for spreading water fog
WO1995018681A1 (en) * 1994-01-10 1995-07-13 Beard Walter C Sterile liquid dispenser
AU687505B2 (en) * 1994-01-10 1998-02-26 Bespak Plc Sterile liquid dispenser
US5370313A (en) * 1994-01-10 1994-12-06 Beard; Walter C. Sterile liquid dispenser
US5594987A (en) * 1994-07-13 1997-01-21 Century; Theodore J. Method of making a sub-miniature aerosolizer
US5606789A (en) * 1994-07-13 1997-03-04 Century; Theodore J. Fixture for sub-miniature aerosolizer
US5579758A (en) * 1994-07-13 1996-12-03 Century; Theodore J. Sub-miniature aerosolizer with helical flow path formed by threaded insert
US5794705A (en) * 1995-04-07 1998-08-18 Korea Institute Of Machinery And Metals Fire extinguishing apparatus having a spraying nozzle assembly
AU701605B2 (en) * 1995-08-31 1999-02-04 Astra Aktiebolag Arrangement in a spray tube mouthpiece
US6283387B1 (en) * 1998-10-27 2001-09-04 Nathan Palestrant Misting head poppet
WO2000054887A1 (en) * 1999-03-17 2000-09-21 Emsar, Inc. Apparatus and method for dispensing a medicinal spray
US20060112589A1 (en) * 2003-09-19 2006-06-01 Herbert Huttlin Apparatus for treating particulate material
US7802376B2 (en) * 2003-09-19 2010-09-28 Huettlin Herbert Apparatus for treating particulate material
US8919664B2 (en) * 2011-01-18 2014-12-30 Seiko Epson Corporation Liquid ejecting apparatus
US20120181352A1 (en) * 2011-01-18 2012-07-19 Seiko Epson Corporation Liquid ejecting apparatus
US9402946B2 (en) 2011-01-18 2016-08-02 Seiko Epson Corporation Liquid ejecting apparatus
US9743948B2 (en) 2011-01-18 2017-08-29 Seiko Epson Corporation Liquid ejecting apparatus
US20160023221A1 (en) * 2014-07-24 2016-01-28 John Metz Dual flow cap assembly for container
US9527635B2 (en) * 2014-07-24 2016-12-27 John Metz Dual flow cap assembly for container
CN108927300A (en) * 2017-05-22 2018-12-04 郑州洁普智能环保技术有限公司 Anti-blocking sprayer
RU219212U1 (en) * 2023-04-17 2023-07-04 Федеральное государственное бюджетное образовательное учреждение высшего образования "Казанский государственный аграрный университет" (ФГБОУ ВО Казанский ГАУ) BIOLOGICAL SPRAYER

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DE1625235B2 (en) 1977-04-07
DE1625235A1 (en) 1972-03-09

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