EP0066016A1 - Appareil pour la distribution et l'évacuation - Google Patents

Appareil pour la distribution et l'évacuation Download PDF

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Publication number
EP0066016A1
EP0066016A1 EP81302314A EP81302314A EP0066016A1 EP 0066016 A1 EP0066016 A1 EP 0066016A1 EP 81302314 A EP81302314 A EP 81302314A EP 81302314 A EP81302314 A EP 81302314A EP 0066016 A1 EP0066016 A1 EP 0066016A1
Authority
EP
European Patent Office
Prior art keywords
tube
ball
nozzle
piston
dispensing
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Withdrawn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
EP81302314A
Other languages
German (de)
English (en)
Inventor
Roman Jan Chudzikowski
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 EP81302314A priority Critical patent/EP0066016A1/fr
Publication of EP0066016A1 publication Critical patent/EP0066016A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/24—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices
    • B65D35/28—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices for expelling contents
    • B65D35/30—Pistons

Definitions

  • This invention relates to dispensers for dispensing fluids,in particular liquid, semi-liquid or pasty materials such as toothpaste or cosmetics pastes and creams.
  • the invention also relates to evacuating devices of the same basic form as the dispenser but in which fluids are drawn into, rather than dispensed from, the device.
  • This invention is based on a need for improvement in the well known collapsible tubes used for dispensing liquid, semi-liquid and pasty materials.
  • a dispensing device comprising a flexible elastic tube having a nozzle which may be fixed or detachable, at one end and containing a free piston dimensioned so that it slightly distends,and so is gripped by,the flexible tube, the flexibility of the tube being such that the piston can be moved within the tube by squeezing the tube.
  • This invention also provides an evacuating device having the same structure as the dispensing device.
  • the tube is squeezed or pinched adjacent the piston on its side distant from the nozzle to propel the piston towards the nozzle to expel fluid contents stored between the nozzle and the piston.
  • the tube In an evacuator the tube is squeezed or.pinched adjacent the piston on its side nearest the nozzle to propel the piston away from the nozzle to suck fluids into the cavity between the piston and the nozzle.
  • the basic structure of the dispensing and evacuating devices is the same but in practice the different applications of the two forms will result in differences of detailed structure.
  • the nozzle of the dispenser will normally be threaded for engagement with a cap.
  • the evacuator will normally be provided with a narrower pipette-type nozzle.
  • the end of the tube opposite to the nozzle is generally provided with means for preventing accidental loss of the piston, for example a peripheral flange or a closure means such a simple plug.
  • the closure is desirably perforated to allow access of atmospheric air to prevent movement of the piston being impeded due to build-up of a vacuum between the piston and the closure.
  • a cylindrical tube and a spherical ball as piston are preferred.
  • the nozzle and closure may be molded in plug form to be simply inserted in the tube.
  • one of the nozzle or other end closure may be formed integrally with the tube.
  • Figure 1 shows a filled dispenser in longitudinal section
  • Figure 2 shows the same tube being manipulated to expell its contents
  • Figure 3 shows a pipette being manipulated to suck-up a liquid.
  • this embodiment of the dispenser comprises a flexible cylindrical tube 1.
  • the tube may be of flexible elastic plastics material, for example low density polyethylene or plasticized P.V.C.
  • the material must of course be selected to be compatible with the contents of the tube.
  • a nozzle member 2 At one end of the tube 1 is a nozzle member 2 having a cap 3 over the nozzle.
  • the tube 1 is filled with a pasty material 4 such as toothpaste and at the end opposite to the nozzle contains a piston in the form of a ball 5 with a plug 6 preventing accidental loss of the ball from the tube.
  • the ball 5 may for example be of plastics e.g. polystyrene, or nylon, glass or steel.
  • the plug 6 has a through-bore which allows air to enter the tube behind the ball, so that manipulation of the ball within the tube is not hindered by the formation of a vacuum between the ball 5 and the plug 6.
  • the cap 3 is removed and manual pressure is applied to the tube 1 by squeezing the tube adjacent the ball 5 and between the ball 5 and plug 6. This forces the ball 5 towards the nozzle member 2, so that the ball acts as a piston and expells some of the contents 4 through the nozzle.
  • the manual pressure is removed the ball remains in its new position still in contact with the contents, and even if the flexible tube has a resilience which returns the walls to their original position, the position of the ball can easily be seen where it is gripped by the flexible tube and this gives a visual indication of the amount of the contents remaining in the tube.
  • substantially all the contents can be expelled, especially if the rear end of the nozzle is shaped to be complementary to the piston.
  • the dispenser of the present invention may be used with a very wide range of liquid, semi liquid or pasty contents.
  • the dimensions of the tube, piston and nozzle may be varied to suit any desired discharge amount of the contents.
  • an extension nozzle may be provided to fit over the normal nozzle, or the nozzle member can be formed initially with an elongate nozzle.
  • the simplicity of the component parts of the dispenser means that the ⁇ components can be manufactured and assembled economically, and the dispenser can be filled with its contents without any of the complex machinery conventionally associated with collapsible tubes.
  • an evacuator of the invention is shown as a pipette based on a flexible elastic tube 11 which may be of transparent plastics and marked with graduations.
  • One end of the tube is closed with a tapering nozzle 12 and the other end is closed with a perforated plug 16.
  • a ball 15 of diameter slightly larger than the tube 11 is positioned within the tube so as to slightly distend the walls of the tube, so that the ball is gripped by the tube but is movable within the tube by manual pressure.
  • the ball By squeezing the tube adjacent the ball and on the nozzle side of the ball, the ball may be moved towards the plug to suck up liquid 14 into the tube when the nozzle is placed in a beaker of the liquid.
  • the liquid may be dispensed from the tube by manipulating the ball in the opposite direction as described with respect to Figure 2.
  • the most important aspect of the invention is the .ability to displace the tube's contents, by externally operating the ball, either positively by exerting pressure, or negatively by creating vacuum.
  • the former is directly applicable to dispensing the contents of the tube, which in this case has a role of a container, fitted with a nozzle appropriate for the handled medium, and the intended purpose.
  • the latter can be used for withdrawals, and would be applicable to pipettes, syringes, syphons, samplers, and generally to evacuators of all kinds.
  • a dispenser or evacuator for a particular application, development work should be - in the first instance - directed towards finding the most "universal" container material, preferably a co-extruded laminate, which combines the necessary mechanical properties with chemical inertness of the contact surface (e.g. a suitable elastomer, or a thin layer of a closed cell foam for "cushioning" the ball) ensuring toxicological 'acceptance,'impermeability, good slip, acceptable costs, aesthetic appearance, etc.
  • the propelling balls can be solid (especially when the dimensions are small) or hollow e.g.
  • a conventional plastic tube is in many respects an inadequate container. Its production is by no means cheap, with the necessity of inside and outside lacquering, tricky marrying by spin welding of an extruded tube with a moulded shoulder, and above all, the necessity of sealing the end of tube, which is a troublesome, costly (energy, and time consuming) operation, requiring constant vigilance, and.beset with a high rate of rejects, and failures in production, and after.
  • For a consumer dispensing becomes increasingly difficult with time the user never knows at any one time how much product there is left in the tube, and is never able to use all its contents.
  • the habitual "sucking-back" of the contents while dispensing is a source of annoyance, and of harmful microbial contamination.
  • Its other disadvantage is the "fishtail" aspect of the sealed tube, which causes difficulties in packaging, and storage,
  • assembly of the dispenser of the present invention requires no use of power: (heating), and the existing filling machines can be easily adapted for assembly at the present heating and sealing stations.
  • the familiar "fishtail” seal is replaced by a "push fit” base, housing a propelling ball of a suitable size, and material.
  • Aesthetics are improved, and storage facilitated because of the upright packing and standing.
  • the consumer is able to avail him/herself of practically the full contents of the tube, dispensed easily, with no suck-back, by one hand operation, while leaving the other hand free to perform additional actions, like, for instance, in applying shampoo.
  • There is also the ability to use such a container as a metering device and there is a well defined indication of the quantity of the product still remaining in the container due to the , distension pf the tube by the ball.
  • the dispenser of the invention is equally advantageous when compared with a metal collapsible tube. Even the cheapest variety, the aluminium tube, is rapidly increasing in price. Furthermore, aluminium, being a base metal requires internal coating to ensure compatibility with the packaged media; a costly and by no means foolproof operation. There are also other disadvantages, like the tube's vulnerability to an unsightly damage by bruising, which is no problem in a tube of a suitable laminate, fitted with a ball piston.
  • a teat can be cheaply, and conveniently replaced by a piece of tubing containing a ball piston.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Tubes (AREA)
EP81302314A 1981-05-26 1981-05-26 Appareil pour la distribution et l'évacuation Withdrawn EP0066016A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP81302314A EP0066016A1 (fr) 1981-05-26 1981-05-26 Appareil pour la distribution et l'évacuation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP81302314A EP0066016A1 (fr) 1981-05-26 1981-05-26 Appareil pour la distribution et l'évacuation

Publications (1)

Publication Number Publication Date
EP0066016A1 true EP0066016A1 (fr) 1982-12-08

Family

ID=8188314

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81302314A Withdrawn EP0066016A1 (fr) 1981-05-26 1981-05-26 Appareil pour la distribution et l'évacuation

Country Status (1)

Country Link
EP (1) EP0066016A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011068892A3 (fr) * 2009-12-01 2011-10-20 Amanda Pascatore Dispositif de stockage et de distribution de fluides
CN103281928A (zh) * 2010-12-02 2013-09-04 高爽工业公司 可佩戴分配器
WO2017077458A1 (fr) * 2015-11-03 2017-05-11 Bantjes Neville Don Distributeur à porter sur la personne
WO2020048918A1 (fr) * 2018-09-03 2020-03-12 Rigshospitalet Dispositif de distribution de médicament

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH459875A (de) * 1966-07-04 1968-07-15 Ciba Geigy Dosiertube
US3521795A (en) * 1968-03-04 1970-07-28 Bahl Associates Full discharge dispensing container
US3698561A (en) * 1971-05-12 1972-10-17 Warner Lambert Co Filtering pipette

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH459875A (de) * 1966-07-04 1968-07-15 Ciba Geigy Dosiertube
US3521795A (en) * 1968-03-04 1970-07-28 Bahl Associates Full discharge dispensing container
US3698561A (en) * 1971-05-12 1972-10-17 Warner Lambert Co Filtering pipette

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011068892A3 (fr) * 2009-12-01 2011-10-20 Amanda Pascatore Dispositif de stockage et de distribution de fluides
US8708194B2 (en) 2009-12-01 2014-04-29 Amanda R. PASCATORE Dispenser with movable dispensing component anchored by a filament
CN103281928A (zh) * 2010-12-02 2013-09-04 高爽工业公司 可佩戴分配器
WO2017077458A1 (fr) * 2015-11-03 2017-05-11 Bantjes Neville Don Distributeur à porter sur la personne
WO2020048918A1 (fr) * 2018-09-03 2020-03-12 Rigshospitalet Dispositif de distribution de médicament

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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18D Application deemed to be withdrawn

Effective date: 19831114