EP1818108A1 - Pompe à air pour un distributeur de fluide - Google Patents

Pompe à air pour un distributeur de fluide Download PDF

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Publication number
EP1818108A1
EP1818108A1 EP06001838A EP06001838A EP1818108A1 EP 1818108 A1 EP1818108 A1 EP 1818108A1 EP 06001838 A EP06001838 A EP 06001838A EP 06001838 A EP06001838 A EP 06001838A EP 1818108 A1 EP1818108 A1 EP 1818108A1
Authority
EP
European Patent Office
Prior art keywords
fluid
pump device
valve
room
air
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.)
Withdrawn
Application number
EP06001838A
Other languages
German (de)
English (en)
Inventor
Chang-Keng Tsai
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
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 Individual filed Critical Individual
Priority to EP06001838A priority Critical patent/EP1818108A1/fr
Publication of EP1818108A1 publication Critical patent/EP1818108A1/fr
Withdrawn legal-status Critical Current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
    • B05B11/06—Gas or vapour producing the flow, e.g. from a compressible bulb or air pump
    • B05B11/061—Gas or vapour producing the flow, e.g. from a compressible bulb or air pump characterised by the means producing the gas or vapour pressure
    • 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
    • B05B11/0027—Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
    • B05B11/0029—Valves not actuated by pressure
    • 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
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • 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
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/026—Membranes separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container
    • 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
    • B05B11/1059—Means for locking a pump or its actuation means in a fixed position
    • B05B11/106—Means for locking a pump or its actuation means in a fixed position in a retracted position, e.g. in an end-of-dispensing-stroke position

Definitions

  • the present invention generally relates the pump device for fluid dispensers, and more particular to a pump device having partitioned rooms for air and fluid separately.
  • Fluid dispensers are commonly found in the household kitchens and bathrooms for holding liquid soaps and detergents, shampoo and conditioners, hand and body lotions, etc.
  • a fluid dispenser usually contains a fluid container device and a pump device mounted on top of the container device.
  • a conventional pump device is shown in FIG 1.
  • the conventional pump device mainly contains a spout A1, a hollow actuating rod A2 attached to the bottom of the spout A1, a fastening element A3 for locking the spout A1 when the pump device is not in use, a closure cap A4 for locking the pump device to the container device (not shown), a hollow chamber A5, a plug element A7 attached to the bottom of the actuating rod A2 via an intermediate hollow rod A71, a piston element A6 wrapping around the rod A71 positioned on top of the plug element A7 having air-tight contact with the inner wall of the chamber A5, a spring A8, a ball valve A9, and a dip tube A10.
  • the operation of the pump device is as follows.
  • the plug element A7 compresses the spring A8 and the piston element A6 drives the air in the chamber A5 downward, forcing the ball valve A9 to block the dip tube A 10.
  • the plug element A7 and the piston element A6 are automatically restored to their original position by the spring A8.
  • the air in the chamber A5 is expelled through a number of ventilation holes A51 configured on the top wall of the chamber A5, thereby vacuuming the space inside the chamber A5.
  • the fluid stored in the container device is therefore sucked into the dip tube A10, pushes the ball valve A9 aside, and flows into the chamber A5.
  • the foregoing conventional pump device has a number of shortcomings.
  • the viscosity of the fluid significantly affects the operation of the pump device.
  • a user has to exert additional force to obtain an appropriate amount of the fluid in a longer period of time.
  • the ball valve is the only device blocking the contact of the fluid inside the container device with outside air and the ball valve can freely move inside the chamber, the fluid's continuous exposure to outside air is inevitable and the conventional pump device is therefore not appropriate for highly volatile fluid.
  • the primary purpose of the present invention is to provides a novel structure for the pump device of fluid dispensers to obviate the foregoing shortcomings of prior approaches.
  • the major characteristic of the present invention is that the chamber of the pump device is partitioned into a pressure room and a fluid room.
  • a piston element is engaged inside the pressure room by an actuating rod to push the piston element downward, or by a resilient element beneath the piston element to restore the piston element back to the top.
  • An air valve element at the bottom of the piston element automatically opens or closes the induction of air to the pressure room when the piston element is moved upward or downward. As such, air pressure is reliably applied to the fluid in the container device as the air flows from the chamber into the container device via an outlet hole therebetween.
  • the fluid room is dedicated to the passage of the fluid.
  • a normally closed fluid valve element is provided at the bottom of the fluid room. When the fluid in the container device is pressurized, the fluid pushes open the fluid valve element, flows into the fluid room and then out of the spout of the pump device.
  • the proposed pump device has quite a few advantages. Except when the fluid is discharged, the air valve element and the normally closed fluid valve element seals the container device at all time, avoiding volatile fluid to evaporate. Additionally, the separation of pressure room and the fluid room avoids the erosion and deterioration of the components as often found in prior arts resulted from their direct contact with and immersion within the fluid, thereby lengthening the operation life of the pump device considerably. Further more, according to the present invention, the air pressure is directly applied to the fluid to drive them out of the container device via a shorter passageway, in contrast to the prior approaches which sucks the fluid out through a longer passageway. The present invention is therefore more responsive to the user operation, requires less user effort, and does not have the dripping problem, even for fluid of high viscosity.
  • a pump device 10 mainly contains a head element 1, an actuating rod 2, a fastening element 3, a piston element 4, a resilient element 5, a body member 6, and a fluid valve element 7.
  • the head element 1 is provided on the top end of the actuating rod 2, and a screw thread 11 is configured around the bottom portion of the head element 1.
  • a corresponding screw thread 31 is configured around the inner wall of the ring-shaped fastening element 3 so that, when the pump device is not in use, the head element 1 can be screwed into the fastening element 3.
  • the other end of the actuating rod 2 is embedded inside a through hole 41 in the center of the piston element 4. The head element 1, the actuating rod 2, and the piston element 4 therefore can be engaged in vertical movement together.
  • the body member 6 has a hollow chamber 62 configured on top of an enclosure cap 63 with a discharging spout 61 extended from the outer wall of the chamber 62.
  • the chamber 62 is partitioned into two separate rooms: a pressure room 621 and a fluid room 622.
  • the actuating rod 2 penetrates into the pressure room 621 via the fastening element 3 which seals the piston element 4 from the top.
  • the resilient element 5 is positioned beneath the piston element 4 inside the pressure room 621.
  • an air valve element 42 is provided that will be opened and closed synchronously with the up and down movement of piston element 4, thereby achieving the air induction and exhaust for the pressure room 621.
  • An air duct 12 is provided all the way from the head element 1 to the bottom of the actuating rod 2, connecting to the through hole 41 of the piston element 4.
  • the air valve element 42 automatically closes the through hole 42 and the air inside the pressure room 621 is expelled through an outlet hole 6211 configured around the bottom of the pressure room 621.
  • the air valve element 42 automatically opens the through hole 42 and air is drawn into the pressure room 621 via the air duct 12.
  • the fluid valve element 7 is fixedly positioned at the bottom of the body member 6, sealing the fluid room 622 from the bottom.
  • the fluid valve element 7 has a valve body 71 and a valve lid 72.
  • the valve lid 72 is attached to the valve body 71 which has a through hole 712 in the center surrounded by an indented lid seat 711. By flipping the valve lid 72 toward the valve body 71, the valve lid 72 will fit inside the lid seat 711 and seal the through hole 712.
  • FIG 8 in which the pump device 10 is tightly installed on a container device B by the enclosure cap 63, the inner pressure inside the container device B is increased when the piston element 4 is pushed downward and the air in the pressure room 621 is forced into the container device B via the outlet hole 6211.
  • the fluid C inside the container device B therefore, is forced into the dip tube D, pushes open the valve lid 72, enters into the fluid room 622, and then flows out from the discharge spout 61.
  • a positioning element 6221 provided inside the fluid room 622 appropriately presses the folded section of the valve lid 72 so that the valve lid 72 normally closes the through hole 712 of the fluid valve element 7 at all times.
  • the fluid C is stored in a storage member B1 inside the container device B.
  • the lower portion of the storage member B1 i.e., the portion close to the bottom of the container device B
  • the body member 6 of the pump device 10 is fixedly joined to the opening of the storage member B1 on the top.
  • the fluid C in the storage member B1 is 'squeezed' out of the storage member B1 literally
  • FIG 6 another embodiment of the piston element 4 is shown in FIG 6, in which the body of the piston element 4 is surrounded with a number of washer rings 40 to provide improved air-tightness as the piston element 4 is moved inside the pressure room 621.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP06001838A 2006-01-30 2006-01-30 Pompe à air pour un distributeur de fluide Withdrawn EP1818108A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06001838A EP1818108A1 (fr) 2006-01-30 2006-01-30 Pompe à air pour un distributeur de fluide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06001838A EP1818108A1 (fr) 2006-01-30 2006-01-30 Pompe à air pour un distributeur de fluide

Publications (1)

Publication Number Publication Date
EP1818108A1 true EP1818108A1 (fr) 2007-08-15

Family

ID=36063311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06001838A Withdrawn EP1818108A1 (fr) 2006-01-30 2006-01-30 Pompe à air pour un distributeur de fluide

Country Status (1)

Country Link
EP (1) EP1818108A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1834705A3 (fr) * 2006-03-13 2008-07-16 Ing. Erich Pfeiffer GmbH Dispositif de pulvérisation pour un produit fluide
FR3019531A1 (fr) * 2014-04-04 2015-10-09 Techniplast Procede d'extraction de liquide d'un appareil de distribution de liquide par injection de gaz
WO2017129477A1 (fr) * 2016-01-25 2017-08-03 Boehringer Ingelheim International Gmbh Nébuliseur

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE837298C (de) * 1949-04-06 1952-04-21 David Rathsprecher Selbsttaetiger Verschluss fuer Behaelter, die gleichzeitig als Giesser, Verteiler, Dosierer oder Zerstaeuber dienen
FR59866E (fr) * 1949-12-17 1954-08-23 Débiteur de liquide goutte à goutte
US3940030A (en) * 1974-08-16 1976-02-24 Hirosi Kondo Dispenser device for taking out contents
EP0000093A1 (fr) * 1977-06-06 1978-12-20 Aladdin Industries, Incorporated Distributeur à pompe pour une bouteille à vide
JPH0275368A (ja) * 1988-09-12 1990-03-15 Atsuko Kagawa 加圧式スプレー装置
FR2650763A1 (fr) * 1989-08-10 1991-02-15 Bedou Patrick Vaporisateur portatif rechargeable pour liquides
US5197866A (en) * 1990-04-11 1993-03-30 Kim Cheong Ho Air pump for a natural mineral water bottle
JPH10120054A (ja) * 1996-10-11 1998-05-12 Toyo Kagaku Kk 注出容器
US5797517A (en) * 1996-10-25 1998-08-25 Primary Delivery Systems, Inc. Liquid pump dispenser with tri-purpose nozzle

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE837298C (de) * 1949-04-06 1952-04-21 David Rathsprecher Selbsttaetiger Verschluss fuer Behaelter, die gleichzeitig als Giesser, Verteiler, Dosierer oder Zerstaeuber dienen
FR59866E (fr) * 1949-12-17 1954-08-23 Débiteur de liquide goutte à goutte
US3940030A (en) * 1974-08-16 1976-02-24 Hirosi Kondo Dispenser device for taking out contents
EP0000093A1 (fr) * 1977-06-06 1978-12-20 Aladdin Industries, Incorporated Distributeur à pompe pour une bouteille à vide
JPH0275368A (ja) * 1988-09-12 1990-03-15 Atsuko Kagawa 加圧式スプレー装置
FR2650763A1 (fr) * 1989-08-10 1991-02-15 Bedou Patrick Vaporisateur portatif rechargeable pour liquides
US5197866A (en) * 1990-04-11 1993-03-30 Kim Cheong Ho Air pump for a natural mineral water bottle
JPH10120054A (ja) * 1996-10-11 1998-05-12 Toyo Kagaku Kk 注出容器
US5797517A (en) * 1996-10-25 1998-08-25 Primary Delivery Systems, Inc. Liquid pump dispenser with tri-purpose nozzle

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 261 (C - 0725) 6 June 1990 (1990-06-06) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 10 31 August 1998 (1998-08-31) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1834705A3 (fr) * 2006-03-13 2008-07-16 Ing. Erich Pfeiffer GmbH Dispositif de pulvérisation pour un produit fluide
FR3019531A1 (fr) * 2014-04-04 2015-10-09 Techniplast Procede d'extraction de liquide d'un appareil de distribution de liquide par injection de gaz
US9834369B2 (en) 2014-04-04 2017-12-05 Techniplast Method for extracting liquid from a liquid dispenser by injecting gas
WO2017129477A1 (fr) * 2016-01-25 2017-08-03 Boehringer Ingelheim International Gmbh Nébuliseur
CN108697866A (zh) * 2016-01-25 2018-10-23 勃林格殷格翰国际有限公司 雾化器
US10973997B2 (en) 2016-01-25 2021-04-13 Boehringer Ingelheim International Gmbh Nebulizer
CN108697866B (zh) * 2016-01-25 2021-08-20 勃林格殷格翰国际有限公司 雾化器

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