EP2111922A1 - Récipient en forme libre avec piston d'asservissement - Google Patents

Récipient en forme libre avec piston d'asservissement Download PDF

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Publication number
EP2111922A1
EP2111922A1 EP08154896A EP08154896A EP2111922A1 EP 2111922 A1 EP2111922 A1 EP 2111922A1 EP 08154896 A EP08154896 A EP 08154896A EP 08154896 A EP08154896 A EP 08154896A EP 2111922 A1 EP2111922 A1 EP 2111922A1
Authority
EP
European Patent Office
Prior art keywords
wall
container
piston
free
follow
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Withdrawn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
EP08154896A
Other languages
German (de)
English (en)
Inventor
Patrick Pan
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.)
Epopack Co Ltd
Original Assignee
Epopack Co Ltd
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 Epopack Co Ltd filed Critical Epopack Co Ltd
Priority to EP08154896A priority Critical patent/EP2111922A1/fr
Publication of EP2111922A1 publication Critical patent/EP2111922A1/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Withdrawn legal-status Critical Current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
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • 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
    • B05B11/028—Pistons 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

Definitions

  • the present invention relates to a container with follow-up piston, and more particularly to a container with follow-up piston having an integrally formed double-wall body consisting of a cylindrical inner wall and a free-form outer wall, and a bottom cover closing a common open lower end of the inner and outer walls, so that the container with follow-up piston may have differently designed appearances to highlight a contained fluid and attract more consumers.
  • a push type dispensing device which includes a saddle head and a dip tube connected to a lower side of the saddle head.
  • the assembly of the saddle head and dip tube is then mounted to an open top of the container, which usually has a specific shape.
  • a pressure differential is produced in the container, bringing the cosmetic product in the form of a fluid stored in the container to move upward in the dip tube and finally flows out of the container via the saddle head.
  • Fig. 1 is a cutaway perspective view of a conventional container with a push type dispenser head.
  • the container denoted by reference numeral 20, is usually provided with a fluid dispenser head 10.
  • the fluid dispenser head 10 basically includes a spray head 11 projected from an open top of the container 20 to expose to air.
  • the spray head 11 is connected to and moves along with an actuator rod 12.
  • a dispenser member such as an airless pump or a valve, is extended into the container 20, so that a fluid stored in the container 20, such as perfume, cosmetics, or medicines, may be delivered to the spray head 11 via the dispenser member.
  • the container 20 basically has a specific size and internal volume, and has a follow-up piston 22 assembled to an inner wall surface 21 of the container 20.
  • a bottom cover 23 is assembled to an open bottom of the container 20. Please refer to Fig. 2 along with Fig. 1 .
  • the bottom cover 23 includes an upright peripheral wall 24 extended along an outer periphery of the bottom cover 23 to connect to the inner wall surface 21 of the container 20 in the manner of tight fitting.
  • the bottom cover 23 is provided on an upper side at a central area thereof with a stop ring 25, and a vent hole 26 is formed on the bottom cover 23 between the stop ring 25 and the upright peripheral wall 24.
  • the stored fluid is moved upward and dispensed mainly due to a pressure differential produced by downward pushing the spray head 11 and an upward movement of the follow-up piston 22 caused by the back pressure from the external atmosphere with higher pressure.
  • the relation between the follow-up piston 22 and the inner wall surface 21 of the container 20 is just the same as that between the piston and the cylinder in an engine.
  • the piston and the cylinder in the engine must have a matching round cross section to achieve the highest possible working efficiency. That is, the piston must have a circular cross section, and the cylinder must have a circular inner wall surface.
  • the piston and the cylinder having any other matching geometrical shapes, such as oval shape, square shape, and rectangular shape, obviously fail to provide the desired close contact between them to have the risk of leakage, and therefore could not achieve the intended function.
  • the conventional container equipped with the follow-up piston is usually limited to a round-sectioned inner space and outer peripheral wall to match the round-sectioned follow-up piston.
  • the conventional container with follow-up piston has a monotonous cylindrical appearance and is rarely changed. Therefore, cosmetic products and toiletries packaged with such monotonous cylindrical containers fail to attract consumers to buy them.
  • the free-form container with follow-up piston includes a double-wall body defining an internal volume for containing a fluid; a top cover connected to an open upper end of the double-wall body; a fluid dispenser head mounted to and projected from the top cover; and a bottom cover sealing an open lower end of the double-wall body.
  • the double-wall body includes a cylindrical inner wall defining a fully round inner wall surface and an open bottom, and a free-form outer wall integrally formed at an outer side of the inner wall.
  • a follow-up piston is mounted in the cylindrical inner wall to face toward the fluid dispenser head.
  • a vent hole is formed on the bottom cover to communicate with an inner space of the inner wall.
  • the cylindrical inner wall is formed near an upper part with a radially outward extended annular shoulder portion, and the free-form outer wall is downward extended from the shoulder portion to define an open bottom.
  • the open bottom of the outer wall and the open bottom of the inner wall together form the open lower end of the container.
  • the bottom cover has a shape matching a cross section of the open lower end of the container formed by the open bottoms of the inner and outer walls, so as to seal the open lower end of the container, and the vent hole formed on the bottom cover communicating the inner space defined in the inner wall with external air.
  • the bottom cover is provided on an upper side with a ring portion having a size matching an inner diameter of the inner wall surface of the cylindrical inner wall, and a centered stop ring.
  • the bottom cover is assembled to the open lower end of the container with the ring portion tightly fitted in the inner wall surface of the cylindrical inner wall and the stop ring located corresponding to and below the follow-up piston.
  • the air vent communicates the inner space of the inner wall with external environment, and an outer periphery of the bottom cover is abutted against the open bottom of the outer wall in a tight-fit relation.
  • the outer wall is integrally formed into a geometrical shape, such as an oval, a square, or a rectangular shape.
  • the outer wall is integrally formed to have an ornamental appearance according to actual need.
  • Fig. 3 is a cutaway perspective view of a free-form container with follow-up piston according to a preferred embodiment of the present invention.
  • the container of the present invention is generally denoted a reference numeral 30.
  • the container 30 defines a specific internal volume, and has a top cover 40 openably closed to an open upper end thereof.
  • a fluid dispenser head 50 is assembled to the open upper end of the container 30 and upward projected from the top cover 40.
  • a bottom cover 60 is fitted to an open lower end of the container 30 to seal the same.
  • the container 30 is an integrally formed double-wall container consisting of a cylindrical inner wall 31 and a free-form outer wall 32.
  • the cylindrical inner wall 31 defines a fully round inner wall surface 35 and an open bottom.
  • a follow-up piston 33 is mounted in the round inner wall surface 35 of the cylindrical inner wall 31 to face toward the fluid dispenser head 50.
  • the free-form outer wall 32 is integrally formed at an outer side of the inner wall 31.
  • the free-form outer wall 32 has an oval cross section.
  • the outer wall 32 is not limited to the oval shape but may be any other shapes. That is, the outer wall 32 may be formed into any shape, such as oval, square, rectangular, and other geometrical shapes.
  • formative arts and modeling techniques may be applied to give the outer wall 32 various ornamental appearances as desired.
  • the cylindrical inner wall 31 is formed near an upper part with a radially outward extended annular shoulder portion 34, and the free-form outer wall 32 is downward extended from the shoulder portion 34 to define an open bottom.
  • the open bottom of the outer wall 32 and the open bottom of the inner wall 31 together form the open lower end of the container 30.
  • the bottom cover 60 has a contour matching the shape of the open lower end of the container 30 to seal the open lower end.
  • a vent hole 61 is provided on the bottom cover 60 within the open bottom of the inner wall 31 to communicate an inner space defined in the inner wall 31 with external air.
  • the bottom cover 60 is provided on an upper side with a ring portion 62, which has a size matching an inner diameter of the inner wall surface 35 of the cylindrical inner wall 31, and a stop ring 63 located at a central area of the bottom cover 60.
  • the bottom cover 60 has an overall configuration matching a cross section of the free-form outer wall 32. That is, in the illustrated preferred embodiment, the bottom cover 60 is oval in shape.
  • the bottom cover 60 may be assembled to the open lower end of the container 30 with the ring portion 62 tightly fitted in the inner wall surface 35 of the cylindrical inner wall 31 and the stop ring 63 located corresponding to and below the follow-up piston 33.
  • the air vent 61 communicates the inner space of the inner wall 31 with external environment. Meanwhile, an outer periphery of the bottom cover 60 is abutted against the open bottom of the outer wall 32 in a tight-fit relation.
  • Figs. 6 and 7 are phantom perspective views showing the follow-up piston 33 at different positions in the cylindrical inner wall 31 of the container 30.
  • the follow-up piston 33 is located at a bottommost position in the inner wall 31 before the fluid dispenser head 50 is depressed to dispense a contained fluid (not shown).
  • the follow-up piston 33 is subject to pressure from the external air via the vent hole 61 and moves upward, as shown in Fig. 7 , so that the fluid (not shown) contained in the inner space defined in the cylindrical inner wall 31 is smoothly dispensed via a nozzle of the fluid dispenser head 50.
  • Fig. 8 shows another bottom cover 600 for a free-form container 300 according to another embodiment of the present invention.
  • the free-form outer wall of the container 300 has a square cross section
  • the bottom cover 600 has a matching square cross section to give the whole container 30 a different form.
  • containers with follow-up piston may still have differently designed outward appearances without being limited to a cylindrical shape. Therefore, the container with follow-up piston according to the present invention may have exterior design varied with the fluid contained therein to attract more consumers without adversely affecting the working efficiency of the follow-up piston in the cylindrical inner wall.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
EP08154896A 2008-04-21 2008-04-21 Récipient en forme libre avec piston d'asservissement Withdrawn EP2111922A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08154896A EP2111922A1 (fr) 2008-04-21 2008-04-21 Récipient en forme libre avec piston d'asservissement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08154896A EP2111922A1 (fr) 2008-04-21 2008-04-21 Récipient en forme libre avec piston d'asservissement

Publications (1)

Publication Number Publication Date
EP2111922A1 true EP2111922A1 (fr) 2009-10-28

Family

ID=39705142

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08154896A Withdrawn EP2111922A1 (fr) 2008-04-21 2008-04-21 Récipient en forme libre avec piston d'asservissement

Country Status (1)

Country Link
EP (1) EP2111922A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019105161A1 (de) * 2019-02-28 2020-09-03 Carl Hoernecke Chem. Fabrik Gmbh & Co. Kg Reizstoffkartusche sowie Reizstoff-Sprühgerät

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2724125A1 (fr) * 1994-09-06 1996-03-08 Oreal Distributeur pour un produit liquide muni d'un piston et piston destine a equiper un tel distributeur
WO2006111632A1 (fr) * 2005-04-22 2006-10-26 Rexam Dispensing Systems Distributeur de produit pateux ou en gel dont le corps comprend un fourreau et un reservoir interne

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2724125A1 (fr) * 1994-09-06 1996-03-08 Oreal Distributeur pour un produit liquide muni d'un piston et piston destine a equiper un tel distributeur
WO2006111632A1 (fr) * 2005-04-22 2006-10-26 Rexam Dispensing Systems Distributeur de produit pateux ou en gel dont le corps comprend un fourreau et un reservoir interne

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019105161A1 (de) * 2019-02-28 2020-09-03 Carl Hoernecke Chem. Fabrik Gmbh & Co. Kg Reizstoffkartusche sowie Reizstoff-Sprühgerät

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