EP0289855A2 - Distributeur de fluides - Google Patents

Distributeur de fluides Download PDF

Info

Publication number
EP0289855A2
EP0289855A2 EP88106258A EP88106258A EP0289855A2 EP 0289855 A2 EP0289855 A2 EP 0289855A2 EP 88106258 A EP88106258 A EP 88106258A EP 88106258 A EP88106258 A EP 88106258A EP 0289855 A2 EP0289855 A2 EP 0289855A2
Authority
EP
European Patent Office
Prior art keywords
piston
pump
suction
chamber
valve
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
Application number
EP88106258A
Other languages
German (de)
English (en)
Other versions
EP0289855B1 (fr
EP0289855A3 (en
Inventor
Lothar Graf
Karl-Heinz Fuchs
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.)
Aptar Radolfzell GmbH
Original Assignee
Erich Pfeiffer GmbH
Ing Erich Pfeiffer GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Erich Pfeiffer GmbH, Ing Erich Pfeiffer GmbH filed Critical Erich Pfeiffer GmbH
Priority to AT88106258T priority Critical patent/ATE77594T1/de
Publication of EP0289855A2 publication Critical patent/EP0289855A2/fr
Publication of EP0289855A3 publication Critical patent/EP0289855A3/de
Application granted granted Critical
Publication of EP0289855B1 publication Critical patent/EP0289855B1/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
    • B05B11/0005—Components or details
    • B05B11/0097—Means for filling or refilling the sprayer
    • 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
    • B05B11/1001—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
    • B05B11/1019—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element the inlet valve moving concurrently with the controlling element during whole pressure and aspiration strokes, e.g. a cage for an inlet valve ball being part of the controlling element

Definitions

  • the invention relates to a discharge device according to the preamble of claim 1.
  • the pump chamber can be surrounded by the pre-suction chamber in the form of a separate cup-shaped chamber body inserted into the cylinder housing. This training has proven itself very well.
  • the invention has for its object to provide a carrying device of the type mentioned, which enables an even more compact and simple design.
  • the pre-suction chamber is expediently at least partially surrounded by the pump chamber lying within the pump chamber.
  • the pump piston and the pre-suction piston mesh at least over part of their axial extent, so that the piston unit can be made very short.
  • an outer peripheral surface can be assigned to the preliminary piston as a piston raceway instead of an inner peripheral surface, so that the preliminary piston is constricted radially inward with increasing pressure in the pump chamber and thus seals particularly well.
  • the two pistons expediently have piston sleeves lying one inside the other with only a small gap distance of the order of one to three tenths of a millimeter, so that the pump chamber can be almost completely emptied during each pump stroke and therefore a very precise metering of the amount of medium applied is ensured.
  • the two pistons lying one inside the other can be mounted displaceably in the direction of the pump stroke in order to actuate an exhaust valve, and the pre-suction piston can be composed of two parts which can be displaced in the direction of the pump stroke in order to actuate an inlet valve.
  • the inlet valve located directly in the area of the pre-suction piston possibly operating in the manner of a slide control, serves as a transfer valve between the pre-suction chamber and the pump chamber, so that no separate inlet valve is required between the pre-suction chamber and the accumulator, but only an always open line connection.
  • a mechanically opened pressure relief connection is provided to vent the pump chamber in the stroke end position of the piston unit. If this pressure relief connection is formed by the stop-actuated opening of the outlet valve, then there is no need for a separate ventilation channel and the outlet valve can also be designed such that it opens when the pump chamber is filled with media under the pressures occurring during the pump stroke before the stroke end position is reached, so that the outlet valve is opened mechanically below a predetermined pressure and above a certain pressure by pressure difference.
  • the discharge device according to the invention can be designed in a simple manner so that it works equally well practically regardless of position and even in the overhead position when the piston unit is in the initial position, the storage device is prevented from leaking by the discharge device.
  • a discharge device 1 has a cylinder housing 3 which is substantially cylindrical over most of its length and which is to be fastened in a sealed manner to the neck of a vessel 5 provided as a store using a cap 4, for example a screw cap that it only engages in the neck of the vessel with a small gap distance and lies within this neck of the vessel over most of its length.
  • the cylinder housing 3 is provided at its outer or rear end with a ring flange 6 formed in one piece with it and projecting radially beyond its outer circumference, with which it is clamped against the end face of the vessel neck with the interposition of a seal.
  • This outer end of the cylinder housing 3 is essentially closed with a cylinder cover 7, which has a sleeve extension engaging in the cylinder housing and an annular flange part lying in the ring flange 6, which is blown into the inner groove of the ring flange 6 from the outer end face and is thereby secured.
  • the outer end faces of the ring flange 6 and the cylinder cover 7 rest against an annular transverse wall 8 of the cap 4, with which the cylinder cover 7 can thus also be pressed into its sealing fastening position against the ring flange 6.
  • a piston unit 9 is slidably mounted, the two coaxially lying, essentially cup-shaped and facing the inner end of the cylinder housing 3 with its cup openings ben, namely an outer pump piston 10 and a pre-suction piston 11 located therein.
  • the inner end of the cylinder housing 3 forms a cylinder 12 with a piston raceway 13 for two annular sealing lips of the pump piston 10 lying one behind the other, which are provided in the region of both ends of this pump piston 10 and are expanded in the opposite shape of a truncated cone to sealing edges.
  • a pre-suction cylinder 15 projecting freely against the piston unit 9, which is formed in one piece with the cylinder housing 3 and protrudes from an annular bottom wall 18 which forms the inner end of the cylinder 12. From the outer end face of this bottom wall 18 there is a connecting piece, which delimits an inlet channel 19, for a riser pipe, for example, reaching as far as the bottom of the vessel 5.
  • the outer circumferential surface of the pre-suction cylinder 15 forms the piston track 16 for the pre-suction piston 11, which engages over the pre-suction cylinder 15 in each piston position in the manner of a slip and is guided on the piston track 16 with an annular sealing lip provided at its front end.
  • a substantially cylindrical piston shaft 21 is provided which is directly connected to the pump piston 10 or is formed in one piece, which passes through the cylinder cover 7 and the transverse wall 8 with a gap distance and an actuating head 22 is placed on its outer, reduced-diameter end is.
  • the tubular piston shaft 21 delimits one with the pump chamber 14 with the interposition of an outlet valve 23 connected outlet channel 24, which leads to an outlet opening 25 in the actuating head 22.
  • the actuating head 22 engages in a position in a collar of the cap 4 projecting from the transverse wall 8.
  • the end of the pre-suction piston 11 opposite the pre-suction chamber 14 is closed with an end wall which forms a frusto-conical valve closing part 26 of the outlet valve 23, the valve seat 27 of which lies in the associated end wall of the pump piston 10 connected to the piston shaft 21 at the inner end of the outlet channel 24 .
  • the pre-suction piston 11 or the valve closing part 26 is guided with an axially slotted shaft 28 in an axially displaceable section of the piston shaft 21 or the outlet channel 24 in such a way that the outlet valve 23 can be opened by shifting against the force of the return spring 20.
  • This section forms a neck 29 of the piston shaft 21, which is thin-walled and elastically compressible with a bulging bulge compared to the remaining sections of the piston shaft lying between the pump piston 10 and the actuating head 22.
  • the valve closing part 26 forms radially outside the valve seat 27 a piston end face which is exposed to the pressure in the pump chamber 14 via the annular gap between the two working pistons and which is larger in area than the front, annular end face 30 of the pre-suction piston 11.
  • a transfer valve 32 is provided, which is opened and closed mechanically depending on the direction of movement of the piston unit 9 or the pre-suction piston 11 and is structurally combined with the pre-suction piston 11 in such a way that both its valve closing part 33 and its valve seat 34 is provided on the pre-suction piston 11.
  • the pre-suction piston 11 has a piston sleeve 35 which is formed by a separate component and is axially limited by a snap connection between an open and a closed position and is movably connected to the piston end wall or the valve closing part 26 of the exhaust valve 23.
  • This piston sleeve 35 which extends almost over the entire length of the corresponding piston sleeve 36 of the pumping piston 10, forms with its rear end face the valve-closing part 33, which is tapered in cross section toward the rear of the pump axis and which, as the valve seat 34, has an annular groove in the front that is complementary in cross section Face of the piston end wall is assigned.
  • the piston sleeve 35 On the inner circumference of the piston sleeve 35 are several, radially resilient and distributed in one piece by the piston, evenly distributed over the handling benstirnwand protruding snap members 38 with radially outwardly projecting snap cams which are associated with an inner ring shoulder provided as a link of the piston sleeve 35 and are at a distance from the valve seat 34 that the piston sleeve 35 from the tightly engaging valve seat 34 in the closed position axially forward to the stop can be moved to the cam in an open position in which the transfer valve 32 in the region of the rear end of the pre-suction piston 11 releases a valve passage 39 between the pre-suction chamber 17 and the annular gap delimited by the piston sleeves 35, 36.
  • valve closing part 33 is pressed against the valve seat 34 due to the friction between the pre-suction piston 11 and the piston race 16, so that the pressure in the pump chamber 14 does not pass through the transfer valve 32 into the pre-suction chamber 17 can escape.
  • the valve closing part is again pulled out of the valve seat 34 as a result of the aforementioned friction, so that medium is sucked through the opened transfer valve 32 from the pre-suction chamber 17 into the pump chamber 14 as a result of the negative pressure building up in the pump chamber 14.
  • the piston shaft 21 forms a driver 40 which is formed in one piece with it and is located opposite the rear end of the shaft 28 and which, when the outlet valve 23 is closed, lies at a short distance from the counter surface of the valve closing part 26 or the shaft 28 formed by the rear end surface. If the pump piston 10 is in its stroke end position lying against the bottom wall 18, the neck 29 no longer lies within the cylinder cover 7, but rather freely within the cylinder housing over most of its length. If the actuating head 22 is now pressed further, the neck 29 is pressed through Compression widened or shortened, so that the driver 40 runs onto the shaft 28 and takes it along until the end face 30 of the pre-suction piston 11 is also fixed by limit stop on the bottom wall 18 when the transfer valve 32 is closed. In this case, the outlet valve 23 is then opened with a relatively small opening cross section, so that, if necessary, the pump chamber 14 can be effectively vented.
  • the cylinder cover 7 has longitudinal ribs 41 distributed evenly over the circumference, which at the rear ends merge into radial ribs on the outer end face of the annular flange part of the cylinder cover 7, the rib edges of which abut the transverse wall 8.
  • the front ends of the longitudinal ribs 41 are set back relative to the associated end of the sleeve extension of the cylinder cover 7, so that this end, which has a reduced diameter, can form a valve seat of a ventilation valve closed when the piston unit 9 is in its initial position, the valve closing part of which is connected to the piston end wall of the pump piston 10 by a valve , frustoconical portion of the piston skirt 21 is formed.
  • the vessel 5 is aerated via the ventilation valve, for which purpose 3 ventilation openings are provided behind the pump piston 10 in the wall of the cylinder housing, which are essentially covered by the sleeve extension of the cylinder cover 7.
  • the neck 29 Even if it does not have sufficient elasticity for stretching, is inevitably returned to its extended position or to its non-compressed position during the return stroke.
  • FIG. 4 the same reference numerals are used for corresponding parts as in the other figures, but with the index "a”.
  • the cylinder housing 3a is graduated in diameter such that an outer, Over the front wall of the cap 4a freely projecting housing part further and an inner, the cylinder 12a forming part is slimmer, the piston 10a is guided in the further part with its rear sealing lip, which is correspondingly larger in diameter than the front sealing lip guided in the cylinder 12a .
  • the cylinder housing 3a is formed in one piece with the cap 4a, with a sleeve part 42 formed in one piece with the cap 4a protruding from the inside of its end wall, which is tapered at the outer circumference to its end in an approximately conical angle such that instead of a separate seal under sealing pressure engages in the inner circumference of the neck of the vessel.
  • the sleeve part 42 surrounds the cylinder 12a at a distance, such that an annular groove open to the vessel is formed, the bottom surface of which is essentially delimited by an annular shoulder between the further and narrower part of the cylinder housing 3a. In this annular shoulder there are through openings 43 which connect the space behind the front piston lip of the pump piston 10a with the vessel.
  • longitudinal channels 44 are provided which connect to the through openings 43 and end in the initial position of the pump piston 10a in front of its rear piston lip.
  • Each longitudinal channel is formed by at least one longitudinal rib protruding over the inner circumference of the cylinder housing 3a and rising obliquely in the direction of the pump stroke at a flat angle, onto which the rear piston lip runs during the pump stroke and is dented radially inward so that the longitudinal rib passes through on both sides the elastic deformation of this piston lip openings are released.
  • the rear end of the cylinder housing 3a is not closed by a separate cylinder cover, but rather is delimited radially inward from the jacket of the cylinder housing 3a, for example by ultrasound angled jacket straps 7a, which serve as a stop for the pump piston 10a in the starting position.
  • the cylinder housing 3a has an annular collar projecting over its outer circumference at the outer end, over which the cap-shaped actuating head 22a with a corresponding annular collar provided on its inner circumference is fitted by resilient snapping on.
  • the transfer valve 32a is designed as a slide valve lying in the region of the front end of the pre-suction piston 11a, the valve closing part 33a of which is formed by the front piston lip of the pre-suction piston 11a.
  • transition openings 39a in the form of, for example, longitudinal slots, which in the initial position of the piston unit 9a are released by the valve closing part 33a in such a way that they establish a connection between the pre-suction chamber 17a and the pump chamber 14a.
  • the pumping piston 11a has a plunger 45 protruding freely forward and practically forming an extension of the shaft 28a, which strikes the bottom wall of the suction chamber 17a when the suction piston 11a is in the front end position, so that only very small stop forces act on the piston sleeve of the suction piston 11a Act.

Landscapes

  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Nozzles (AREA)
EP88106258A 1987-05-08 1988-04-20 Distributeur de fluides Expired - Lifetime EP0289855B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88106258T ATE77594T1 (de) 1987-05-08 1988-04-20 Austragvorrichtung fuer medien.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3715301 1987-05-08
DE19873715301 DE3715301A1 (de) 1987-05-08 1987-05-08 Austragvorrichtung fuer medien

Publications (3)

Publication Number Publication Date
EP0289855A2 true EP0289855A2 (fr) 1988-11-09
EP0289855A3 EP0289855A3 (en) 1989-12-06
EP0289855B1 EP0289855B1 (fr) 1992-06-24

Family

ID=6327067

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88106258A Expired - Lifetime EP0289855B1 (fr) 1987-05-08 1988-04-20 Distributeur de fluides

Country Status (4)

Country Link
US (1) US5011046A (fr)
EP (1) EP0289855B1 (fr)
AT (1) ATE77594T1 (fr)
DE (2) DE3715301A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0342651A1 (fr) * 1988-05-18 1989-11-23 Societe Technique De Pulverisation Step Pompe de dosage
DE3929064A1 (de) * 1989-06-29 1991-01-10 Henkel Kgaa Handbetaetigbarer fluessigkeitszerstaeuber zur abgabe dosierter mengen
US4986453A (en) * 1989-05-15 1991-01-22 The Pittway Corporation Atomizing pump
EP0430431A2 (fr) * 1989-11-27 1991-06-05 Specialty Packaging Licensing Company, Inc. Distributeur-pulvérisateur de fluides
US5284276A (en) * 1992-10-21 1994-02-08 Bespak Plc Pump dispenser with combined inlet and outlet ports
GB2286230A (en) * 1994-02-03 1995-08-09 Bespak Plc Dispensing apparatus
US5443185A (en) * 1990-11-09 1995-08-22 Ing. Erich Pfeiffer Gmbh & Co. K.G. Dispenser for media
US5655688A (en) * 1994-10-19 1997-08-12 Aptargroup, Inc. Atomizing pump with high stroke speed enhancement and valve system therefor
US5664706A (en) * 1994-10-13 1997-09-09 Bespak Plc Apparatus for dispensing liquid in aerosol spray form
AU693834B2 (en) * 1994-02-03 1998-07-09 Bespak Plc Dispensing apparatus
EP2000219A1 (fr) * 2007-06-08 2008-12-10 Gotohti.Com Inc. Mécanisme de libération sous vide
FR2950256A1 (fr) * 2009-09-21 2011-03-25 Ko Chuan Wei Accumulateur a double etancheite pour distributeur de parfum
CN116539818A (zh) * 2023-06-27 2023-08-04 云南碧翔物联网科技有限公司 一种臭气浓度检测系统及方法

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2668958B1 (fr) * 1990-11-13 1994-05-20 Valois Dispositif de pulverisation ou de distribution de produit fluide, a aspiration du produit contenu dans le canal de sortie en fin d'actionnement.
DE4110304A1 (de) * 1991-03-28 1992-10-01 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung fuer medien
US5310089A (en) * 1993-03-22 1994-05-10 Hudgins Richard G Liquid dispensing system
US5388766A (en) * 1993-09-22 1995-02-14 The Procter & Gamble Company High pressure atomization systems for high viscosity products
US5687878A (en) * 1994-04-15 1997-11-18 Owens-Brockway Plastic Products Inc. Flexible tube with pump dispenser and method of making
US5800770A (en) * 1994-04-15 1998-09-01 Owens-Brockway Plastic Products Inc. Method of making a flexible tube
US5988443A (en) * 1994-04-15 1999-11-23 Owens-Brockway Plastic Products Inc. Flexible tube with pump dispenser and method of making
US6050457A (en) * 1995-12-06 2000-04-18 The Procter & Gamble Company High pressure manually-actuated spray pump
US5850948A (en) * 1996-09-13 1998-12-22 Valois S.A. Finger-operable pump with piston biasing post
DE19749514A1 (de) * 1997-11-08 1999-05-12 Pfeiffer Erich Gmbh & Co Kg Verfahren zum Ausbringen von wenigstens zwei verschiedenen Medien und Spender dafür
US6358237B1 (en) 1999-01-19 2002-03-19 Assistive Technology Products, Inc. Methods and apparatus for delivering fluids to a patient
KR100995652B1 (ko) * 2003-08-28 2010-11-22 주식회사 종우실업 예압식 저형상 미세 수동 분사펌프
US8733230B2 (en) * 2008-05-28 2014-05-27 Nestec S.A. Pump for liquid beverage preparation devices
ES2449380T3 (es) * 2010-02-24 2014-03-19 Colgate-Palmolive Company Tapón dispensador con depósitos seleccionables
DK2900259T3 (da) 2012-09-28 2020-07-13 Ellis Kline Glycosidase-regime til behandling af infektionssygdomme
MX2015009260A (es) 2013-01-18 2015-10-15 Ellis Kline Regimen de glicosidasa selectiva para programacion inmunitaria y tratamiento del cancer.
EP2939750A1 (fr) * 2014-04-29 2015-11-04 The Procter and Gamble Company Pompe de distributeur oscillant
US11035429B2 (en) 2018-01-03 2021-06-15 Silgan Dispensing Systems Corporation Compression spring assembly and methods of using the same
US11236794B2 (en) 2018-01-03 2022-02-01 Silgan Dispensing Systems Corporation Dispensing pump with polymer spring, base venting and flow baffle
US10870123B2 (en) 2018-01-03 2020-12-22 Silgan Dispensing Systems Corporation Dispensing pump with locking structures and methods of using the same
US10138971B1 (en) * 2018-01-03 2018-11-27 Silgan Dispensing Systems Corporation Dispensing pump with polymer compression spring assemby
US10473176B2 (en) 2018-01-03 2019-11-12 Silgan Dispensing Systems Corporation Compression spring assembly and methods of using the same
US10794445B2 (en) 2018-01-03 2020-10-06 Silgan Dispensing Systems Corporation Dispensing pump with polymer compression spring assembly
US11312613B2 (en) 2018-09-27 2022-04-26 Silgan Dispensing Systems Corporation Dispensing tap and methods for using the same
US10526191B1 (en) 2018-09-27 2020-01-07 Silgan Dispensing Systems Corporation Dispensing tap and methods for using the same
CN113786672B (zh) * 2021-09-28 2022-11-29 尚潇瑛 一种地下水资源回收利用装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2749644A1 (de) * 1977-05-20 1978-11-30 Coster Tecnologie Speciali Spa Zerstaeuberkopf mit zylinderkolbenanordnung fuer aersosole oder andere fluessigkeiten enthaltende behaelter
DE2732888A1 (de) * 1977-07-21 1979-02-01 Zeller Plastik Koehn Graebner Kolbenpumpe
EP0014754A1 (fr) * 1979-02-17 1980-09-03 Calmar-Albert GmbH Pompe pulvérisatrice

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1473290A (en) * 1975-03-28 1977-05-11 Step Soc Tech Pulverisation Liquid atomisers
US4089442A (en) * 1976-09-30 1978-05-16 Ethyl Corporation Accumulative pressure pump
US4230242A (en) * 1979-03-26 1980-10-28 Philip Meshberg Triple seal valve member for an atomizing pump dispenser
AU540119B2 (en) * 1979-03-27 1984-11-01 Yoshino Kogyosho Co., Ltd. Manual atomizer
DE3272873D1 (en) * 1981-06-04 1986-10-02 Pharmasol Corp Pressurized container with dispensing pump
US4821928A (en) * 1987-09-25 1989-04-18 Su Cheng Y Moveable valve structure for perfume atomizers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2749644A1 (de) * 1977-05-20 1978-11-30 Coster Tecnologie Speciali Spa Zerstaeuberkopf mit zylinderkolbenanordnung fuer aersosole oder andere fluessigkeiten enthaltende behaelter
DE2732888A1 (de) * 1977-07-21 1979-02-01 Zeller Plastik Koehn Graebner Kolbenpumpe
EP0014754A1 (fr) * 1979-02-17 1980-09-03 Calmar-Albert GmbH Pompe pulvérisatrice

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0342651A1 (fr) * 1988-05-18 1989-11-23 Societe Technique De Pulverisation Step Pompe de dosage
US4986453A (en) * 1989-05-15 1991-01-22 The Pittway Corporation Atomizing pump
DE3929064A1 (de) * 1989-06-29 1991-01-10 Henkel Kgaa Handbetaetigbarer fluessigkeitszerstaeuber zur abgabe dosierter mengen
EP0430431A2 (fr) * 1989-11-27 1991-06-05 Specialty Packaging Licensing Company, Inc. Distributeur-pulvérisateur de fluides
EP0430431A3 (en) * 1989-11-27 1992-01-08 Rjs Industries, Inc. Atomizing fluid dispenser
US5443185A (en) * 1990-11-09 1995-08-22 Ing. Erich Pfeiffer Gmbh & Co. K.G. Dispenser for media
US5284276A (en) * 1992-10-21 1994-02-08 Bespak Plc Pump dispenser with combined inlet and outlet ports
GB2286230B (en) * 1994-02-03 1997-07-30 Bespak Plc Dispensing apparatus
GB2286230A (en) * 1994-02-03 1995-08-09 Bespak Plc Dispensing apparatus
AU693834B2 (en) * 1994-02-03 1998-07-09 Bespak Plc Dispensing apparatus
US5664706A (en) * 1994-10-13 1997-09-09 Bespak Plc Apparatus for dispensing liquid in aerosol spray form
US5655688A (en) * 1994-10-19 1997-08-12 Aptargroup, Inc. Atomizing pump with high stroke speed enhancement and valve system therefor
EP2000219A1 (fr) * 2007-06-08 2008-12-10 Gotohti.Com Inc. Mécanisme de libération sous vide
US8056772B2 (en) 2007-06-08 2011-11-15 Gotohti.Com Inc. Vacuum release mechanism
FR2950256A1 (fr) * 2009-09-21 2011-03-25 Ko Chuan Wei Accumulateur a double etancheite pour distributeur de parfum
CN116539818A (zh) * 2023-06-27 2023-08-04 云南碧翔物联网科技有限公司 一种臭气浓度检测系统及方法
CN116539818B (zh) * 2023-06-27 2023-12-19 唐山市燃气集团有限公司 一种臭气浓度检测系统及方法

Also Published As

Publication number Publication date
EP0289855B1 (fr) 1992-06-24
ATE77594T1 (de) 1992-07-15
DE3715301A1 (de) 1988-11-24
DE3872303D1 (de) 1992-07-30
EP0289855A3 (en) 1989-12-06
US5011046A (en) 1991-04-30

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