EP0493643A1 - Atomizer - Google Patents
Atomizer Download PDFInfo
- Publication number
- EP0493643A1 EP0493643A1 EP91100088A EP91100088A EP0493643A1 EP 0493643 A1 EP0493643 A1 EP 0493643A1 EP 91100088 A EP91100088 A EP 91100088A EP 91100088 A EP91100088 A EP 91100088A EP 0493643 A1 EP0493643 A1 EP 0493643A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- plunger
- atomizer
- passage member
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-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
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
- B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
- B05B11/1018—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element and the controlling element cooperating with means for opening or closing the inlet valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-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
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1066—Pump inlet valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-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
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1066—Pump inlet valves
- B05B11/107—Gate valves; Sliding valves
Definitions
- This invention provides a liquid atomizer having an improved valve body.
- a conventionally structured atomizer mostly like that shown in Figure 6, meant to atomize liquids contained therein, embodies a valve element which is composed, as a rule, of a pair of individually moulded, but correspondingly shaped hollow-set valve stubs 14a, 14b. Between such two semi-cylinders is mounted a steel ball check valve 14c to unite both together.
- a ball type valve as used in an atomizer has several disadvantages that should be removed in order to make best use of an atomizer.
- such a conventional ball valve 14c is typically made of rigid materials such that the presence of any kind of oxides adhered to its surface will add to the detriment of liquid-tight performance and eventually result in prejudicing the compression efficiency, further resulting in liquid drops being present in the resulting spray. Furthermore, in operation, the valve element 14 may easily get clogged in the wall surrounding the journal of the compression cylinder. Additionally, when a conventionally structured valve is subject to excessive externally induced shock, vibration or tilting stresses, the steel ball 14c will respond accordingly so that the high pressure liquids being compressed in the compression chamber will have a chance to enter the semi-cylinder by passing the interval gap existing between the steel ball 14c and the medium chamber 14b.
- a main objective of the present invention is to provide an atomizer wherein the valve body is prepared differently in contrast to the conventional steel valve bodies so that it will not suffer from any external shocks and maintain a tightly closed condition, a relatively higher compression ratio so as to permit optimum atomization, and which should prove advantageous in respect of economy of production costs.
- the plunger is provided with a passage hole in association with the spraying outlet of the nozzle head, and tops the end portion of a valve body in communication with the valve seat being formed in the central area of the passage hole, to the effect that a steel spring seated in the reduced area of the cylinder will bear the end portion of the valve body against the valve seat such that the valve element may come to a position for fitting into the cylinder.
- a piston provided down the valve element will maintain a tightly bound engagement with the interior wall of the reduced diameter of the cylinder as the nozzle head is depressed.
- the cylinder 1 comprises, in combination, a portion of larger diameter 1a and one of a reduced diameter 1b, the larger diameter 1a telescopingly engaged with a hollow-set piston 4 provided as part of the plunger 3 of the nozzle head.
- the lower end of the reduced diameter 1b extends in the form of a suction tube 11 into the vessel 5.
- the valve seat 1c lies between the larger diameter portion 1a and the reduced diameter portion 1b.
- the nozzle 7 is in connection with plunger 3 through opening 6.
- valve element 8 points upwards and forms a tight-bound valve body 8a together with valve seat 9 and is mounted central to the opening 6.
- the valve element 8 is fitted in cylinder 1, the valve body 8a being borne against the valve seat 9 by means of spring 10 fitted in the reduced diameter portion 1b.
- the lower part of the valve element 8 is structured such that the interior of the reduced diameter 1b will maintain a tight-bound engagement with the piston 8b upon depression of the nozzle head 2.
- piston 8b is made from emollient resin materials having highly reliable water and ethyl alcohol tightness characteristics. Initial depression in operation will bring liquids A into cylinder 1 through suction, spraying of atomized particles with the invention is through fingertip depression of the nozzle head 2.
- the plunger 3 will move downward, the valve seat 9 forming a part of the plunger 3 and being positioned on the valve body 8a will move the valve element 8 in conjunction therewith.
- the hollow-set piston 4, also forming a part of the plunger 3, is telescoped within the larger diameter portion 1a in the downward displacement.
- the underside of the valve element 8 is formed into a piston 8b which forms an enclosure with respect to the larger diameter portion 1a when slid into engagement with the reduced diameter portion 1b of the cylinder 1.
- nozzle head 2 of the atomizer illustrated in Fig. 1 is screwed to lid 12 through threaded area 12a formed about the opening 5a of the vessel in relation to the cylinder 1.
- flange 12b Surrounding the periphery of the plunger 3 is provided flange 12b meant to secure in tight-bound condition the liquids contained within.
- Plunger 3 is connected to the nozzle head 2 overhead by passing through an aperture 13 about which flange 12b forms a depending skirt, such an arrangement ensures the absolute leak-free condition of the liquid once established in the vessel container.
- Such a tight-bound means is provided on the flange 12b, as shown in Fig.
- the spraying nozzle 7, as illustrated in Fig. 5, and structured hereunder, is provided with a plurality of gently curved grooves 7a extending radially to even better enhance the atomization effects.
- the diversification through moment of torsion will be improved all the more advantageously when the liquids are ejected under high pressure, high speed conditions, since atomized outputs twirling in a curl are seen as tiny mist sprays.
- the construction of the nozzle herein accounts but for one feature of the invention and by no means shall restrict the scope thereof.
- the present invention makes possible the provision of a valve element having the characteristics of a regular pump and permitting convenient contact displacements up-and-down between the cylinder and plunger of an atomizer device having excellent atomization performance and defying imitation by like products by the provision of outstanding tight-sealing thereof to maintain advantageous compression efficiency such that the invention device will withstand shock and tilting that would prove detrimental to a regular atomizer structured otherwise.
- An atomizer structure embodying the invention will not shed liquid drops when driven to yield atomized sprays such as occurs with conventional atomizers utilizing steel ball components within, and has been proven to be economically advantageous for mass production.
Landscapes
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
Description
- This invention provides a liquid atomizer having an improved valve body.
- A conventionally structured atomizer, mostly like that shown in Figure 6, meant to atomize liquids contained therein, embodies a valve element which is composed, as a rule, of a pair of individually moulded, but correspondingly shaped hollow-
set valve stubs 14a, 14b. Between such two semi-cylinders is mounted a steel ball check valve 14c to unite both together. Such a ball type valve as used in an atomizer has several disadvantages that should be removed in order to make best use of an atomizer. As one example, such a conventional ball valve 14c is typically made of rigid materials such that the presence of any kind of oxides adhered to its surface will add to the detriment of liquid-tight performance and eventually result in prejudicing the compression efficiency, further resulting in liquid drops being present in the resulting spray. Furthermore, in operation, thevalve element 14 may easily get clogged in the wall surrounding the journal of the compression cylinder. Additionally, when a conventionally structured valve is subject to excessive externally induced shock, vibration or tilting stresses, the steel ball 14c will respond accordingly so that the high pressure liquids being compressed in the compression chamber will have a chance to enter the semi-cylinder by passing the interval gap existing between the steel ball 14c and themedium chamber 14b. All of these disadvantages are reflected in obvious reduction of the pressure prevailing in the compression cylinder and, consequently, reduction in the rate, power of the liquid being fed out, and substantial decrease in the atomizing performance of the nozzle head which would then eject atomized particles accompanied by liquid drops, rather than fully atomised particles. - In addition, the construction of a conventional valve element, disclosed accordingly, by virtue of a separately run production involving assembling procedures for the embodiment that necessarily incurs much labor and time, and of the additional costs owing to the presence of a steel ball to be fitted therebetween, is far from being advantageous from economical as well as production efficiency viewpoints.
- A main objective of the present invention is to provide an atomizer wherein the valve body is prepared differently in contrast to the conventional steel valve bodies so that it will not suffer from any external shocks and maintain a tightly closed condition, a relatively higher compression ratio so as to permit optimum atomization, and which should prove advantageous in respect of economy of production costs. To achieve such an objective, there is provided an atomizer construction of a type incorporating a nozzle head connected to the plunger of a hollow-set piston in the lower section thereof, said piston being engaged by continuous overlapped fitting to a large diameter portion of a cylinder. The underside of the cylinder, having a reduced taper diameter, is engaged in the liquid container. The plunger is provided with a passage hole in association with the spraying outlet of the nozzle head, and tops the end portion of a valve body in communication with the valve seat being formed in the central area of the passage hole, to the effect that a steel spring seated in the reduced area of the cylinder will bear the end portion of the valve body against the valve seat such that the valve element may come to a position for fitting into the cylinder. A piston provided down the valve element will maintain a tightly bound engagement with the interior wall of the reduced diameter of the cylinder as the nozzle head is depressed.
-
- Fig. 1 is a longitudinal cross-sectional view of the atomizer structure in one illustrative, non-limiting embodiment;
- Fig. 2 is a longitudinal cross-section illustrating the embodiment of Fig. 1 with the nozzle head depressed to activate the valve element;
- Fig. 3 is an illustration of the valve element covered in the embodiment shown in Fig. 1:
- Fig. 4 is a longitudinal cross section of the plunger-lid sealing area on an enlarged scale;
- Fig. 5 is a frontal view of the nozzle, prepared according to the invention, on an enlarged scale; and
- Fig. 6 is a longitudinally exploded schematic of a conventional atomizer using a steel ball type valve element.
- Referring to Fig. 1, showing the atomizer of the present invention in a longitudinal cross section while no depression is made to the nozzle head thereof, it will be seen that the
cylinder 1 comprises, in combination, a portion oflarger diameter 1a and one of a reduced diameter 1b, thelarger diameter 1a telescopingly engaged with a hollow-set piston 4 provided as part of theplunger 3 of the nozzle head. The lower end of the reduced diameter 1b extends in the form of asuction tube 11 into thevessel 5. The valve seat 1c lies between thelarger diameter portion 1a and the reduced diameter portion 1b. Thenozzle 7 is in connection withplunger 3 through opening 6. One end of thevalve element 8 points upwards and forms a tight-boundvalve body 8a together withvalve seat 9 and is mounted central to theopening 6. Thevalve element 8 is fitted incylinder 1, thevalve body 8a being borne against thevalve seat 9 by means ofspring 10 fitted in the reduced diameter portion 1b. The lower part of thevalve element 8 is structured such that the interior of the reduced diameter 1b will maintain a tight-bound engagement with thepiston 8b upon depression of thenozzle head 2. According to this illustrative embodiment,piston 8b is made from emollient resin materials having highly reliable water and ethyl alcohol tightness characteristics. Initial depression in operation will bring liquids A intocylinder 1 through suction, spraying of atomized particles with the invention is through fingertip depression of thenozzle head 2. In the meantime, theplunger 3 will move downward, thevalve seat 9 forming a part of theplunger 3 and being positioned on thevalve body 8a will move thevalve element 8 in conjunction therewith. The hollow-set piston 4, also forming a part of theplunger 3, is telescoped within thelarger diameter portion 1a in the downward displacement. The underside of thevalve element 8 is formed into apiston 8b which forms an enclosure with respect to thelarger diameter portion 1a when slid into engagement with the reduced diameter portion 1b of thecylinder 1. The liquids theretofore stored in the space confined by thevalve seat 9, relative to theplunger 3, through thecylinder 1 are restricted from flowing into the reduced diameter portion 1b and as such are compressed by the depression of thenozzle head 2, to the effect that thepiston 8b will come into engagement with the reduced diameter portion 1b and pressure on the confined liquid will be increased. The pressure passes to thevalve element 8 by means of thepiston 8b thereon. Thevalve element 8 overcoming the biasing force ofspring 10 in response to such pressure is further depressed with concurrent disengagement of the top end of thevalve 8a from its contact position with thevalve seat 9 relative to theplunger 3. As a result, liquid acted upon by the high pressure will instantly find its way out of the nozzle through opening 6 viavalve seat 9 in atomized particles. When thenozzle head 2 stops spraying following release, the interior of the cylinder will assume a passive condition, thecompression spring 10 automatically lifting thevalve element 8 upwards, thepiston 8b for thevalve element 8 rising upward in the reduced diameter portion 1b, and functioning as a suction pump therein. Returning more specifically to Fig. 2, it is seen that viasuction tube 11 the liquid in thevessel 5 is sucked upwards through the reduced diameter portion 1b to reach thecylinder 1 and the interior ofplunger 3 and remains there for use in the next operation. - The
nozzle head 2 of the atomizer illustrated in Fig. 1 is screwed tolid 12 through threadedarea 12a formed about the opening 5a of the vessel in relation to thecylinder 1. Surrounding the periphery of theplunger 3 is providedflange 12b meant to secure in tight-bound condition the liquids contained within.Plunger 3 is connected to thenozzle head 2 overhead by passing through anaperture 13 about whichflange 12b forms a depending skirt, such an arrangement ensures the absolute leak-free condition of the liquid once established in the vessel container. Such a tight-bound means is provided on theflange 12b, as shown in Fig. 4, wherein theflange 12b, having a tapered rim thereon, which will secure a tight-bound engagement with thesupplementary seal 3a, formed as an annular lip onplunger 3 when it is free of pressure, this will help secure a yet more reliable sealing effect and is an optional modification which shall by no means restrict the scope of the invention hereunder. - The spraying
nozzle 7, as illustrated in Fig. 5, and structured hereunder, is provided with a plurality of gently curved grooves 7a extending radially to even better enhance the atomization effects. The diversification through moment of torsion will be improved all the more advantageously when the liquids are ejected under high pressure, high speed conditions, since atomized outputs twirling in a curl are seen as tiny mist sprays. Again, the construction of the nozzle herein accounts but for one feature of the invention and by no means shall restrict the scope thereof. - To summarize, the present invention makes possible the provision of a valve element having the characteristics of a regular pump and permitting convenient contact displacements up-and-down between the cylinder and plunger of an atomizer device having excellent atomization performance and defying imitation by like products by the provision of outstanding tight-sealing thereof to maintain advantageous compression efficiency such that the invention device will withstand shock and tilting that would prove detrimental to a regular atomizer structured otherwise. An atomizer structure embodying the invention will not shed liquid drops when driven to yield atomized sprays such as occurs with conventional atomizers utilizing steel ball components within, and has been proven to be economically advantageous for mass production.
- The features disclosed in the foregoing description, in the claims and/or in the accompanying drawings may, both, separately and in any combination thereof, be material for realising the invention in diverse forms thereof.
Claims (9)
- A pump-type atomizer comprising:a) a movable nozzle head defining a spay nozzle;b) a substantially stationary cylinder element, the cylinder element having an upper portion and lower portion with a maximum diameter less than the diameter of the upper portion, the lower portion having a tapered configuration such that its diameter decreases in a direction away from the upper portion;c) a plunger attached to the movable nozzle head so as to move therewith, the plunger defining a passage extending through the plunger and communicating with the spay nozzle, a valve seat around the passage, and a plunger piston movable within the upper portion of the cylinder element;d) a valve element located within the cylinder element defining a valve body and a piston; and,e) biasing means operatively associated with the valve element to normally bias the valve body against the valve seat to close the passage whereby movement of movable nozzle head and plunger causes movement of the valve element such that the piston sealingly contacts the power portion of the cylinder element and wherein further movement pressurizes a fluid which acts on the piston to displace the valve body away from the valve seat, thereby allowing the pressurized fluid to pass through the passageway and exit through the spray nozzle.
- The atomizer of claim 1 further comprising: an assembly comprising said plunger, cylinder element and valve element attached to a liquid reservoir by means of threaded lid defining an aperture through which said plunger passes; a depending peripheral flange, formed on the lid adacent to the aperture; and, an annular lip located on the plunger so as to operate with said depending peripheral flange in a tight-bound engagement to prevent leakage of liquid through said aperture.
- The atomizer of claim 1 wherein the nozzle is provided with a plurality of curved, radially extending, atomization enhancing grooves.
- The atomizer of claim 2 wherein said depending peripheral flange has a tapered rim.
- A pump-type atomizer comprising a nozzle in communication with one end of a first passage member, the first passage member comprising a valve seat, the other end of the first passage member communicating in a fluid-tight manner with one end of a second passage member and being mounted for slideable movement relative thereto, the other end of the second passage member being tapered, a valve member mountable within the second passage member, the valve member being contactable in a fluid-tight manner with the other end of the second passage member and the valve seat, and biassing means for urging the valve member away from the other end of the second passage member and toward the valve seat.
- An atomizer according to Claim 5 further comprising a fluid reservoir having an aperture in a wall thereof, within which aperture the first passage member is movable.
- An atomizer according to Claim 6 wherein the reservoir further comprises a depending flange surrounding the aperture, which flange is co-operable in fluid-tight manner with an upstanding lip on the exterior of the first passage member.
- An atomizer according to Claim 7 wherein the depending flange has a tapered rim.
- An atomizer according to any one of Claims 5 to 8 wherein the nozzle comprises a plurality of curved, radially extending grooves.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69121379T DE69121379D1 (en) | 1991-01-02 | 1991-01-02 | Atomizer |
EP91100088A EP0493643B1 (en) | 1991-01-02 | 1991-01-02 | Atomizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP91100088A EP0493643B1 (en) | 1991-01-02 | 1991-01-02 | Atomizer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0493643A1 true EP0493643A1 (en) | 1992-07-08 |
EP0493643B1 EP0493643B1 (en) | 1996-08-14 |
Family
ID=8206280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91100088A Expired - Lifetime EP0493643B1 (en) | 1991-01-02 | 1991-01-02 | Atomizer |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0493643B1 (en) |
DE (1) | DE69121379D1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2838788A1 (en) * | 2002-04-19 | 2003-10-24 | Valois Sa | Manually actuated fluid dispenser pump in the fluid dispensing device, has main portion which is frustoconical in shape to modify radial stresses exerted on piston |
US6918514B2 (en) | 2002-04-19 | 2005-07-19 | Valois Sas | Fluid dispenser pump |
CN112403000A (en) * | 2020-11-25 | 2021-02-26 | 方梅珍 | Preparation method of concrete modified additive |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2181198A5 (en) * | 1972-04-17 | 1973-11-30 | Step | |
GB2023225A (en) * | 1978-06-19 | 1979-12-28 | Aerosol Inventions Dev | Pump for hand-held containers |
US4305530A (en) * | 1978-01-23 | 1981-12-15 | Yoshino Kogyosho Co., Ltd. | Liquid atomizer |
GB2110771A (en) * | 1981-11-30 | 1983-06-22 | Aerosol Inventions Dev | Hand-held pump-type dispensers |
US5002228A (en) * | 1989-07-14 | 1991-03-26 | Su Jeno Y | Atomizer |
-
1991
- 1991-01-02 DE DE69121379T patent/DE69121379D1/en not_active Expired - Lifetime
- 1991-01-02 EP EP91100088A patent/EP0493643B1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2181198A5 (en) * | 1972-04-17 | 1973-11-30 | Step | |
US4305530A (en) * | 1978-01-23 | 1981-12-15 | Yoshino Kogyosho Co., Ltd. | Liquid atomizer |
GB2023225A (en) * | 1978-06-19 | 1979-12-28 | Aerosol Inventions Dev | Pump for hand-held containers |
GB2110771A (en) * | 1981-11-30 | 1983-06-22 | Aerosol Inventions Dev | Hand-held pump-type dispensers |
US5002228A (en) * | 1989-07-14 | 1991-03-26 | Su Jeno Y | Atomizer |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2838788A1 (en) * | 2002-04-19 | 2003-10-24 | Valois Sa | Manually actuated fluid dispenser pump in the fluid dispensing device, has main portion which is frustoconical in shape to modify radial stresses exerted on piston |
WO2003089151A1 (en) * | 2002-04-19 | 2003-10-30 | Valois Sas | Fluid product dispensing pump |
US6918514B2 (en) | 2002-04-19 | 2005-07-19 | Valois Sas | Fluid dispenser pump |
CN112403000A (en) * | 2020-11-25 | 2021-02-26 | 方梅珍 | Preparation method of concrete modified additive |
Also Published As
Publication number | Publication date |
---|---|
EP0493643B1 (en) | 1996-08-14 |
DE69121379D1 (en) | 1996-09-19 |
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