EP0446401B1 - Valve mobile pour atomiseurs de liquides - Google Patents

Valve mobile pour atomiseurs de liquides Download PDF

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Publication number
EP0446401B1
EP0446401B1 EP90106795A EP90106795A EP0446401B1 EP 0446401 B1 EP0446401 B1 EP 0446401B1 EP 90106795 A EP90106795 A EP 90106795A EP 90106795 A EP90106795 A EP 90106795A EP 0446401 B1 EP0446401 B1 EP 0446401B1
Authority
EP
European Patent Office
Prior art keywords
moveable valve
liquid
piston body
valve body
moveable
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
EP90106795A
Other languages
German (de)
English (en)
Other versions
EP0446401A1 (fr
Inventor
Cheng-Yuan Su
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Priority claimed from US07/277,270 external-priority patent/US4938392A/en
Application filed by Individual filed Critical Individual
Publication of EP0446401A1 publication Critical patent/EP0446401A1/fr
Application granted granted Critical
Publication of EP0446401B1 publication Critical patent/EP0446401B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the present invention relates to a moveable valve assembly for liquid atomizers which mainly comprises a piston assembly and a moveable valve body including an upper solid rod and a lower hollow sleeve.
  • the upper solid rod consists of three rod portions each having a different diameter form the other such that the intersection between any two of three rod portions may be respectively formed into a tapered shoulder , a recess or a socket with a flattened shoulder to serve as pressure concentrating points whereby the pressure generated by the pressurized liquid can be efficiently applied to those pressure concentrating points in order to overcome the compression force provided by a spring located under the moveable valve body and in turn to enable a valve head to disengage from a corresponding exhaust hole.
  • the lower hollow sleeve is provided at the lower end of its vertical side with an outward projection and with an inclined extension below the projection end with an inclined extension below the projection such that the pressure generated by the pressurized liquid can be applied to the upper side of the projection to force the moveable valve body downward while the pressure applied to the inclined extension makes an inner arcuate flange of the inclined extension closely contact a valve hole so as to achieve a fluidtight effect , and in turn to expedite the formation of pressurized liquid in a compressed chamber.
  • the lower hollow sleeve may be provided with a thick solid portion wherein the top side of the thick solid portion is formed with a plurality of tooth-shaped annular portions to enforce the pressurizing effect applied thereto whereby the atomization of the liquid can be rapidly completed.
  • the preset invention relates to a manual type miniature atomizer, and more particularly for an improved moveable valve assembly for liquid atomizers in which the moveable valve body cam be promptly actuated to proceed with a reciprocating motion in response to a user's slight depressive operation.
  • FIG. 1 it illustrates an atomizer manufactured by Coster Tecnologie Speciali S.P.A. wherein the shoulder of the moveable valve is designed to be inclined
  • FIG. 1 illustrates an atomizer manufactured by Coster Tecnologie Speciali S.P.A. wherein the shoulder of the moveable valve is designed to be inclined
  • the moveable valve cannot efficiently overcome the opposite compression force created by a spring to make a valve head disengage from a corresponding exhaust hole.
  • US-A-4821928 relates to a moveable valve assembly for liquid atomizers comprising: a piston body; a moveable valve body consisting of an upper solid rod and a lower hollow sleeve being received in said piston body; and a spring disposed below said moveable valve body to compress said moveable valve body upward such that a triangular valve head of said moveable valve body can securely close an exhaust hole of said piston body.
  • the present invention relates to a moveable valve assembly for liquid atomizers comprising: a piston body; a moveable valve body consisting of an upper solid rod and a lower hollow sleeve being received in said piston body; and a spring disposed below said moveable valve body to compress said moveable valve body upward such that a triangular valve head of said moveable valve body can securely close an exhaust hole of said piston body, characterized in that the valve assembly comprises at least four pressure concentrating points and said upper solid rod comprises a plurality of rod portions each having a different diameter from the other, at least two intersections between any two of said rod portions being respectively formed into a tapered shoulder, a recess or a socket with a flattened shoulder so as to form a pressure concentrating point to facilitate the pressure generated by the pressurized liquid being concentrated thereon.
  • the lower hollow sleeve is provided at the lower end of its vertical side with an outward projection such that the pressure generated by the pressurized liquid can be applied to the upper side of the projection to force the moveable valve body downward while the pressure applied to the inclined extension makes an inner arcuate flange of the inclined extension closely contact a valve hole so as to achieve a fluidtight effect, and in turn so expedite the formation of pressured liquid in a compressed chamber.
  • the upper periphery of the sleeve may be provided with a thick solid portion, the top side of which is formed with a plurality of tooth-shaped annular portions whereby upon operation the thick solid portion can apply a larger compression force to the liquid contained in a compressed chamber and then the pressurized liquid will effectively force the moveable valve to more downward with the aid of the tooth-shaped annular portions as well as a corresponding inverted v-shaped groove and corresponding trumpet-shaped inner annular portion respectively formed in the lower side of the piston body such that a triangular valve body may simultaneously disengage from a corresponding exhaust hole to allow the pressarized liquid to be sprayed out of the atomizer through a hollow tubular portion.
  • the moveable valve assembly for liquid atomizers of the first preferred embodiment of the present invention mainly comprises a piston body (B) and an moveable valve body (A) consisting of an upper solid rod (A1) and a lower cylindrical sleeve (A2).
  • the upper solid rod (A1) is received into a piston body (B) in such a manner that a triangular exhaust valve head (A101) at the top of said rod (A1) closely contact an exhaust hole located at the bottom of a hollow tubular portion (B1) of the piston body (B) to restrict the liquid to flow into the lower space of the tubular portion (B1).
  • a triangular exhaust valve head (A101) at the top of said rod (A1) closely contact an exhaust hole located at the bottom of a hollow tubular portion (B1) of the piston body (B) to restrict the liquid to flow into the lower space of the tubular portion (B1).
  • the piston body (B) together with the moveable valve body (A) are driven downward.
  • the upper solid rod (A1) of the moveable valve body (A) is designed in such a manner that said rod (A1) mainly consists of a first rod portion (A11), a second rod portion (A12) and a third rod portion (A11) is formed into a triangular valve head (A101) while the intersection between the first rod portion (A11) and the second rod portion (A12) is formed with a taperes shoulder (A102) acting as a first pressure concentrating point.
  • the intersection between the second rod portion (A12) and the third rod portion (A13) also has a tapered shoulder (A103) and a projection shoulder (A104).
  • An inverted triangular recess (A105) is formed between said tapered shoulder (A103) and projection shoulder (A104) in order to both receive more liquid therein and serve as a second pressure concentrating point.
  • the tapered shoulder (A103) can further direct the vertical force component of the force provided by the pressurized liquid to the recess (A105).
  • the lower end of the third rod portion (A13) possesses a tapered shoulder (A106) similar to the tapered shoulder (A103) of the second rod portion (A12), and further forms with the upper end of a sleeve (A2) a flattened shoulder (A202) as well as a flange (A203) to serve as a third pressure concentrating point.
  • the tapered shoulder (A106) of the third rod portion (A13), in addition to having the ability of directing the force as the aforesaid tapered shoulder (A103) does, is designed to cooperate with the upper end of the sleeve (A2) so as to provide a thicker portion (A204) which shall not be inwardly deformed when the sleeve (A2) of the moveable valve body (A) is compressed under high pressure.
  • the lower end of the vertical side (A205) of the sleeve (A2) is provided with an outward projection (A206).
  • the upper side of said projection (A26) is used to concentrate the pressure applied thereto and serve as a fourth pressure concentrating point.
  • the lower side of said projection (A206) has an inwardly inclined extension (A207) which is provided at its interior with an inner arcuate flange (A201).
  • A207 inwardly inclined extension
  • the inclined extension (A207) below said projection (A206) is inwardly compressed under the horizontal force applied to the inclined surface thereof. Due to such an inward compression action, the extension (A207) can closely contact a corresponding valve hole to prevent the liquid from leaking into the compressed chamber during the compression stroke.
  • FIG. 6 shows a longitudinal sectional view of the second preferred embodiment of the present invention wherein a thick solid portion (A3) is formed on the upper periphery of the sleeve (A2).
  • the thick solid portion (A3) is formed by extending outward from the vertical side (A21) of the sleeve (A2) a solid portion with a larger diameter in comparison with the diameter of the sleeve (A2).
  • the lower side of the thick solid portion (A3) is formed into an inclined portion (A31) and the upper side thereof is provided with a plurality of concentric tooth-shaped annular portions , for example , a first annular portion (A34), a second annalar portions (A33) and a third annular portion (A32) as shown in FIG. 6, to guide the liquid applied thereto.
  • the piston body (B) is provided at its lower side with an inverted V-shaped groove (B2) and a trumpet-shaped inner annular portion (B3) respectively corresponding to the aforesaid annular portions of the thick solid portion (A3).
  • the pressurizing effect will be come more significant with the provision of the thick solid portion (A3).
  • the pressurized liquid below the thick solid portion (A3) will be forced to flow upward through the space formed between the thick solid portion (A3) and the wall (C1) of the compressed chamber (C).
  • the upward pressurized liquid will first contact the inverted V-shaped groove (B2) of the piston body (B) and be directed to the first annular portion (A34) of the thick solid portion (A3) to force the moveable valve (A) downward.
  • the pressurized liquid coming from the first annular portion (A34) will be directed to the inner annular groove (B3) of the piston body (B) and then be directed to the third annular portion (A32) of the thick solid portion (A3) to further force the moveable valve (A) downward. Finally the pressurized liquid will be directed upward through the space formed between the third rod portion (A13) and the inner wall of the piston body (B). Since the above mentioned various actions are completed simultaneously the pressure applied to the moveable valve (A) is both concentrative and effective such that the moveable valve (A) can easily overcome the opposite compression force generated by the spring (E) and then move downward.
  • the moveable valve (A) will continue to move downward to make the triagular valve head disengage from the exhaust hole (B101) so that the pressurized liquid can be sprayed out of the atomizer through the hollow tubular portion (B1).
  • the special arrangement of the tooth-shaped annular portions also will prevent the liquid from easily sliding downward along the inclined portion so as to expedite the formation of the pressure concentration effect.
  • the present invention provides at least four pressure concentrating points respectively located at four different positions such that the presure provided by the pressurized liquid can be efficiently applied to said four pressure concerntrating points whereby the moveable valve (A) in turn is driven downward to disengage the valve head (A101) from the exhaust hole (B101) whereby the pressurized liquid can be sprayed out from the atomizer through the hollow tubular portion (B1) of the piston body (B).
  • the thick solid portion (A3) of the sleeve (A2) possesses a larger volume, the capability of pressurizing the liquid contained in the compressed chamber will be significently increased.
  • the improved structure achieved by the provision of the tooth-shaped annular portions (A32), (A33) and (A34), as well as the inverted V-shaped groove (B2) and the trumpet-shaped inner annular portion (B3) will facilitate the application of the pressurized liquid to the moveable valve (A) on a simultaneous and continuous manner so as to force the moveable valve (A) to overcome the opposite force generated by the spring (E) and then to disengage the valve head from the exhaust hole (B101). Accordingly it is believed that the present invention can effectively eliminate the drawbacks existing in the prior art and thus successfully provide an improved atomizer.

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Claims (5)

  1. Assemblage de valve mobile pour atomiseurs de liquides comprenant :
    - un corps de piston (B) ;
    - un corps de valve mobile (A) constitué d'une tige supérieure solide (A1) et d'un manchon inférieur creux (A2) logé dans ledit corps de piston (B) ;
    - un ressort (E) disposé sous le corps de valve mobile (A) pour le comprimer vers le haut de telle manière qu'une tête de valve triangulaire (A101) dudit corps de valve mobile (A) puisse fermer de façon sûre un trou d'évacuation (B101) du corps du piston (B),
       caractérisé en ce que l'assemblage de valve comprend au moins quatre points de concentration de pression et la tige solide supérieure (A1) comprend plusieurs parties de tige (A11, A12, A13) ayant chacune un diamètre différent de l'autre, au moins deux intersections entre deux parties de tige quelconques, formées respectivement dans un épaulement effilé, et une cavité ou un renfoncement présentant un épaulement aplati afin de former un point de concentration de pression pour faciliter la pression générée par le liquide sous pression étant concentré sur celui-ci.
  2. Assemblage de valve mobile pour atomiseurs de liquides selon la revendication 1, dans lequel le manchon creux inférieur (A2) du corps de valve mobile (A) est muni à l'extrémité inférieure de sa face verticale (A205) d'une saillie externe (A206) telle que la force orientée vers le bas et générée par le liquide sous pression puisse être appliquée au côté supérieur de ladite saillie (A206), et dans lequel la face inférieure de la saillie (A206) est formée avec une protubérance inclinée vers l'intérieur (A207) dont l'intérieur est muni d'une collerette arquée interne (A201) afin que ladite collerette soit agencée pour entrer étroitement en contact avec un trou de valve correspondant dans le but de mettre fin à la communication entre l'intérieur et l'extérieur d'une chambre sous pression (C) pendant le mouvement de va-et-vient du corps de valve mobile (A).
  3. Assemblage de valve mobile pour atomiseurs de liquides selon la revendication 1, dans lequel le manchon creux inférieur (A2) est muni d'une portion solide épaisse (A3) ayant un diamètre plus important comparé à celui dudit manchon creux (A2), la portion solide épaisse (A3) comprenant à son côté inférieur une partie inclinée (A31) et à son côté supérieur plusieurs parties concentriques annulaires (A32, A33, A34) pour diriger le liquide étant appliqué à celui-ci et dans lequel le corps de piston (B) comprend à son côté inférieur une gorge (B2) en forme de V renversé et une partie annulaire interne (B3) en forme de pavillon correspondant respectivement aux parties annulaires (A32, A33, A34) de la portion solide épaisse (A3).
  4. Assemblage de valve mobile pour atomiseurs de liquides selon l'une des revendications 1 à 3, comprenant :
    - un corps de piston (B) ayant un trou d'évacuation (B101) ;
    - un corps de valve mobile (A) apte à être inséré dans le corps de piston (B), comprenant une tige supérieure (A3) ayant une tête de valve (A101) pouvant s'engager dans le trou d'évacuation (B101) et un manchon creux inférieur (A2) ; et
    - des moyens de sollicitation (E) pour solliciter le corps de valve (A) vers le corps de piston (B) afin que la tête de valve (A101) s'engage dans le trou d'évacuation (B101).
  5. Assemblage de valve mobile pour atomiseurs de liquides selon la revendication 4, dans lequel le manchon creux inférieur (A2) comprend une portion élargie (A3) ayant une dimension externe supérieure à celle du reste du manchon creux inférieur, ladite portion élargie (A3) ayant une partie inclinée inférieure (A31), la face supérieure de la portion élargie (A3) comprenant au moins une saillie ou un renfoncement annulaire (A33) pouvant s'engager avec un renfoncement ou une saillie annulaire (B2) correspondante située sur une face inférieure du corps de piston (B).
EP90106795A 1988-11-29 1990-04-09 Valve mobile pour atomiseurs de liquides Expired - Lifetime EP0446401B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/277,270 US4938392A (en) 1988-11-29 1988-11-29 Anti-leakage structure for a liquid atomizer
EP90101811 1990-01-30
EP90101811A EP0439648B1 (fr) 1988-11-29 1990-01-30 Structure antifuite pour atomisateur de liquide

Publications (2)

Publication Number Publication Date
EP0446401A1 EP0446401A1 (fr) 1991-09-18
EP0446401B1 true EP0446401B1 (fr) 1995-03-15

Family

ID=26124905

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90106795A Expired - Lifetime EP0446401B1 (fr) 1988-11-29 1990-04-09 Valve mobile pour atomiseurs de liquides

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9114080D0 (en) * 1991-06-28 1991-08-14 Weston Terence E Atomising valve

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274560A (en) * 1976-04-30 1981-06-23 Emson Research Incorporated Atomizing pump dispenser
FR2512517A1 (fr) * 1981-09-04 1983-03-11 Aerosol Inventions Dev Pompe-valve pour la distribution de liquides sous pression et procede de remplissage de recipients equipes d'une telle pompe-valve
US4821928A (en) * 1987-09-25 1989-04-18 Su Cheng Y Moveable valve structure for perfume atomizers

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Publication number Publication date
EP0446401A1 (fr) 1991-09-18

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