GB2030121A - A dispensing closure for liquid, paste or powder products - Google Patents

A dispensing closure for liquid, paste or powder products Download PDF

Info

Publication number
GB2030121A
GB2030121A GB7929388A GB7929388A GB2030121A GB 2030121 A GB2030121 A GB 2030121A GB 7929388 A GB7929388 A GB 7929388A GB 7929388 A GB7929388 A GB 7929388A GB 2030121 A GB2030121 A GB 2030121A
Authority
GB
United Kingdom
Prior art keywords
outlet
tube
dispenser
outlet tube
flexible tube
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Withdrawn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
GB7929388A
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.)
Les Produits Associes Broxo SA
Original Assignee
Les Produits Associes Broxo SA
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 Les Produits Associes Broxo SA filed Critical Les Produits Associes Broxo SA
Publication of GB2030121A publication Critical patent/GB2030121A/en
Withdrawn legal-status Critical Current

Links

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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/065—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages with hinged, foldable or pivotable spouts
    • B65D47/066—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages with hinged, foldable or pivotable spouts the spout being either flexible or having a flexible wall portion, whereby the spout is foldable between a dispensing and a non-dispensing position
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2031—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure the element being formed by a slit, narrow opening or constrictable spout, the size of the outlet passage being able to be varied by increasing or decreasing the pressure
    • B65D47/2037—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure the element being formed by a slit, narrow opening or constrictable spout, the size of the outlet passage being able to be varied by increasing or decreasing the pressure the element being opened or closed by actuating a separate element which causes the deformation, e.g. screw cap closing container slit
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/30—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge with plug valves, i.e. valves that open and close a passageway by turning a cylindrical or conical plug without axial passageways
    • B65D47/305—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge with plug valves, i.e. valves that open and close a passageway by turning a cylindrical or conical plug without axial passageways provided with a spout, e.g. "escargot"-type valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Coating Apparatus (AREA)

Abstract

A dispensing closure for liquid, paste or powder products is provided on a flexible container (1) and comprises an outlet connection (3) and a pivotable outlet tube (4). A flexible tube (10) is pressed into the outlet connection (3) and passes internally through the greater part of the length of the outlet tube (4) which can be moved through approximately 90 DEG into a closed position, Fig. 2 (not shown), in which the tube (10) is clamped by a shoulder (7) at the end of the outlet tube (4). In this way the tube is completely closed to seal the closure. In other embodiments, flexible tube (10) is twisted to seal the closure, Figs. 5, 6 (not shown), or collapsed axially, Figs. 7, 8 (not shown). <IMAGE>

Description

SPECIFICATION A dispenser for liquid, paste or powder products The present invention relates to a dispenser for liquid, paste or powder products for use particularly in dentistry.
Existing dispensers of this type have an outlet tube which is connected to a body of the dispenser via a shut-off valve that rotates in a cup formed in an outlet connection comprising a cylindrical bearing through which the centre drilling of the outlet tube runs. In an open position the outlet tube is aligned with the outlet opening of the connection, whilst in a closed position the cylindrical bearing of the outlet tube covers the outlet opening.
In this existing arrangement the various parts of the dispenser are usually made of plastics material and they must be accurately produced in order to adequately seal the dispenser in the closed position. Otherwise the contents of the dispenser, especially if they are liquid, can leak from the joint. Even in the closed position liquid droplets may still be able to reach the outlet tube.
A dispenser leaking in this way is particularly unpleasant and the object of the present invention is to provide a dispenser of simple operation and construction and in which the outlet tube is completely sealed in the closed position.
According to the present invention there is provided a dispenser for liquid, paste or powder products comprising a product container defining an outlet, a movable outlet tube fitted to the outlet of the container and adjustable between an open position and a closed position, and a flexible tube which is fitted tightly in the outlet and which passes at least partly into the interior of the outlet tube, the flexible tube being closed off when the outlet tube is in the closed position to seal off the product container.
It can be seen that in the present invention the joint between the outlet tube and the outlet connection is not in contact with the product at all so that only in the closed position is it necessary to clamp the flexible tube, which in itself is simple. The dispenser according to the invention can be manufactured economically since the joints need not comply with fine tolerances and only a simple piece of flexible tube, preferably a silicon tube, is required to produce the desired effect.
A further advantage results from the fact that one can use a narrow bore tube so that the outlet for the product is of low volume.
This is important for the following reason: if the dispenser were fitted with a container with flexible walls whereby the product is dis pensed by pressing the container, the suction effect created when the flexible container wall is released would draw the product from the outlet tube back into the vessel, thus emptying the outlet tube. This then prevents a leakage of any product remaining in the outlet tube. A narrow bore tube when used in this dispenser produces this effect very easily.
The present invention will now be described by way of example with reference to the accompanying drawings in which: Figure 1 is a cross-sectional view of a first embodiment of dispenser according to the invention with an outlet tube therefore open; Figure 2 is a view similar to Fig. 1 but showing the outlet tube in a closed position; Figure 3 is a sectional view along the line Ill-Ill in Fig. 2; Figure 4 is a cross-sectional view of a variation of the dispenser shown in Fig. 1 with the outlet tube in the closed position; Figure 5 is a cross-sectional view of a second embodiment of dispenser according to the invention with its outlet tube in the open position; Figure 6 is a cross-sectional view similar to Fig. 5 but with the outlet tube in the closed position;; Figure 7 is a cross-sectional view of a third embodiment of a dispenser according to the invention with its outlet tube in the open position; and Figure 8 is a view similar to Fig. 7 but showing the outlet tube in the closed position.
Referring to Fig. 1 and 2, the dispenser is fitted with a flexible container 1 with a circular flange 2 to which is glued or welded an outlet connection 3 in which a pivotable outlet tube 4 is fitted. The opening 3a of the outlet connection has a conical wall and the inner end of a flexible tube 10 is pressed therein and partly protrudes into the outlet tube 4. In this example the tube 10 travels the greater part of the interior of the outlet tube 4 and is connected at its front end to an internal circular shoulder 4a of the outlet tube 4.
The pivoted end of the outlet tube 4 comprises a cylindrical bearing 5 with two diametrically opposite cylindrical lugs 6 (Fig. 3) and lies in a cut-away portion 8 of the outlet connection 3 which has two diametrically opposed bearing openings 9 for the lugs 6.
These openings 9 form an inner section of longitudinal holes which are open to the outside and directly above the mounting area for the lugs 6 are slightly narrower than the latter so that the outlet tube 4 can be press-fitted into the bearing openings 9, simply by locat ing the lugs 6.
The cut-away portion 8 is additionally open to one side, in Figs. 1 to 3 to the righthand side, of the outlet connection 3 so that the outlet tube 4 can be pivoted through approxi mately 90 from an open position as shown in Fig. 1 to a closed position as shown in Fig. 2.
The bearing 5 of the outlet tube 4 is fitted with a cam 7 which runs parallel to the axis of the outlet tube 4 and in the closed position, shown in Fig. 2, presses the hose 10 against the inner wall of the cut-away portion 8 so as to form a seal. After the outlet tube 4 is moved to the open position the flexible hose 10 takes on a straight shape again, as shown in Fig. 1. This simple method provides a reliable seal for the dispenser without the need for the moving parts of the joint to comply with fine tolerances. Thus the dispenser according to the invention can be mass produced very economically.
The hose 10 preferably consists of silicon rubber and has a relatively small diameter of 1 mm or less, so that the dead space in the outlet is kept low. Thus the liquid remaining in the outlet tube 4 or the flexible tube 10 is drawn back completely into the container 1 so that contamination by leakage is prevented.
In the example shown in Fig. 4 the tube 10 in the closed position is clamped by a projection 1 7 which protrudes through a cut-away portion 1 8 of the outlet tube 14. In addition, in this design the outer end 11 of the tube 10 which protrudes through the outlet tube 14 is sealed before the dispenser is first used so that after the dispenser has been manufactured and filled no special securing methods are necessary to prevent accidental operation.
Before using the dispenser for the first time the operator need only cut off the outer end 11 of the tube 10.
The opening 1 3a of the outlet connection 1 3 in which the tube 10 is pressed is in this case formed in the shape of a double cone.
In the embodiments shown in Figs. 5 and 6 an outlet tube 24 has a hollow cylindrical section 25 at its inner end which is snap fitted to and grips an outlet connection 23 of the container 1 and which can rotate to a certain extent on this connection. In addition the outlet tube 24 is located eccentrically to the outlet connection 23. Shoulders 27 and 28 respectively are provided on the opposite inside walls of the outlet connection 23 and the section 25 of the outlet tube 24, at an angle to the tube 10.The arrangement is such that in the open position shown in Fig. 5 the tube 10 can take on a slightly curved shape, unhindered by the shoulders 27 and 28 whilst in the closed position shown in Fig. 6, in which it is turned through approximately 90 to the axis of the outlet connection 23, the tube 10 is clamped and thereby closed between the two shoulders 27 and 28. For better manual operation the outer surface of the section 25 is ribbed as at 29.
In the embodiment according to Figs. 7 and 8 an outlet tube 34 has at its inner end a hollow section 35 with which it can telescope between an extended open position (Fig. 7) and a retracted closed position (Fig. 8) on an outlet connection 33 which is in turn attached to the container 1. The section 35 locks in both positions, for which purpose locking shoulders 32 are provided on the outer surface of the outlet connection 33 and an inner edge 36 at the bottom end of the section 35 whereby the outlet tube 34 is snap fitted to the outlet connection 33. The inside diameter of the section 35 is greater than the diameter of the tube 10 so that in the closed position according to Fig. 8 this hose can form a side fold. On the opposite inside walls of the outlet connection and the section 35 circular shoulders 37 and 38 are provided to clamp the tube fold in the closed position. In the example shown, the inside diameter of the section 35 is more than three times the tube diameter, so that a fold adequate to ensure a seal is provided. A ribbed area 39 on the outside edge of the section 35 simplifies operation.
A lock in the closed and open positions can also be provided in the other embodiments described above.
The dispenser described can be used advantageously, for example as a replaceable dispenser for a fluorescent solution in an existing diagonistic lamp for fluorescent treatment of teeth to make dental decay visible.

Claims (12)

1. A dispenser for liquid, paste or powder products comprising a product container defining an outlet, a movable outlet tube fitted to the outlet of the container and adjustable between an open position and a closed position, and a flexible tube which is fitted tightly in the outlet and which passes at least partly into the interior of the outlet tube, the flexible tube being closed off when the outlet tube is in the closed position to seal off the product container.
2. A dispenser as claimed in claim 1, in which in the closed position of the outlet tube the flexible tube is clamped by at least one edge defined by the outlet tube and a rim defining the outlet.
3. A dispenser as claimed in claim 1 or 2, in which the outlet tube is pivotable in the outlet and in the open position is at least approximately aligned with the axis of the outlet, whilst in the closed position it is at an angle of substantially 90 to the axis of the outlet.
4. A dispenser as claimed in claim 3 when dependent on claim 2, in which an edge is provided at the pivoted end of the outlet tube which edge is directed towards the pivot formed by the outlet tube in the outlet.
5. A dispenser as claimed in claim 3, in which a edge defining the outlet projects towards the outlet tube and can compress the flexible tube through a cut-away portion of the outlet tube when it is in the closed position.
6. A dispenser as claimed in claim 1, in which the outlet tube can rotate on or in the outlet by means of a hollow cylindrical joint formed at its inner end and located eccentrically to its axis, the flexible tube being clamped between two walls located on the hollow cylindrical joint and the outlet of which at least one wall forms an edge to compress the flexible tube when the outlet tube is in its closed position.
7. A dispenser as claimed in claim 1, in which the outlet tube has a hollow joint defining an inside diameter larger than twice the diameter of the flexible tube the outlet tube being mounted telescopically on or in the outlet and can be extended into the open position wherein the flexible tube is at least approximately straight and retracted into the closed position wherein the flexible tube forms a side fold which is clamped between opposing wall sections of the hollow joint and of the outlet, at least one of which wall sections having a ring-shaped edge.
8. A dispenser as claimed in claim 1, in which the flexible tube protrudes from the outer end of the outlet tube and is closed at the outer end before the dispenser is used.
9. A dispenser as claimed in claim 1, in which the outlet tube locks in both the open and closed positions.
10. A dispenser as claimed in claim 6 or 7, in which the outlet is snap fitted to a connection defining the outlet and is ribbed on its outer circumference.
11. A dispenser as claimed in claim 1, in which the rim defining the outlet is in the form of a cone or a double cone into which outlet the end of the flexible tube is press fitted.
12. A dispenser as claimed in claim 1, in which the flexible tube consists of a silicon rubber.
1 3. A dispenser for liquid, paste or powder products substantially as hereinbefore described with reference to and as shown in Figs. 1 to 3, or Fig. 4, or Figs. 5 and 6, or Figs. 7 and 8 of the accompanying drawings.
GB7929388A 1978-09-26 1979-08-23 A dispensing closure for liquid, paste or powder products Withdrawn GB2030121A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1001578A CH632462A5 (en) 1978-09-26 1978-09-26 DISPENSER FOR LIQUID, PASTE-SHAPED OR POWDER-SHAPED PRODUCTS, PREFERABLY FOR BODY CARE.

Publications (1)

Publication Number Publication Date
GB2030121A true GB2030121A (en) 1980-04-02

Family

ID=4358430

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7929388A Withdrawn GB2030121A (en) 1978-09-26 1979-08-23 A dispensing closure for liquid, paste or powder products

Country Status (6)

Country Link
JP (1) JPS5548067A (en)
CH (1) CH632462A5 (en)
DE (1) DE2937393A1 (en)
FR (1) FR2437355A1 (en)
GB (1) GB2030121A (en)
IT (1) IT1123322B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004086A1 (en) * 1984-03-13 1985-09-26 Jill Lesley Dent Drinking vessel
EP0427495A2 (en) * 1989-11-04 1991-05-15 Carters Drinks Group Limited Improvements in or relating to dispensers
GB2393946A (en) * 2002-09-21 2004-04-14 Pbi Home & Garden Ltd Granule distributing apparatus
WO2004063042A3 (en) * 2003-01-16 2004-09-23 Erich Drazdansky Drinking device
JP2016011143A (en) * 2014-06-30 2016-01-21 株式会社吉野工業所 Foam discharge container
CN111619954A (en) * 2020-04-30 2020-09-04 宁波谱莱实验仪器有限公司 Self-closed flow bottle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5867845U (en) * 1981-10-30 1983-05-09 帝人株式会社 Bobbin tension device
GB9213534D0 (en) * 1992-06-25 1992-08-12 Courtaulds Packaging Ltd Closure for container
DE102020111149A1 (en) 2020-04-23 2021-10-28 Aesculap Ag Medical device and cooling / irrigation fluid tubing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE508572A (en) *
FR973069A (en) * 1948-09-14 1951-02-07 Automatic shutter for vials and bottles
US3278095A (en) * 1964-02-21 1966-10-11 Lever Brothers Ltd Closure for bendable spout on container
US3392887A (en) * 1966-09-13 1968-07-16 Bross Helmut Karl Container closure

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004086A1 (en) * 1984-03-13 1985-09-26 Jill Lesley Dent Drinking vessel
EP0160372A1 (en) * 1984-03-13 1985-11-06 Jill Lesley Dent Drinking vessel
EP0427495A2 (en) * 1989-11-04 1991-05-15 Carters Drinks Group Limited Improvements in or relating to dispensers
EP0427495A3 (en) * 1989-11-04 1991-08-07 Carters Drinks Group Ltd Improvements in or relating to dispensers
GB2393946A (en) * 2002-09-21 2004-04-14 Pbi Home & Garden Ltd Granule distributing apparatus
GB2393946B (en) * 2002-09-21 2006-05-24 Pbi Home & Garden Ltd Granule distributing apparatus
US7500622B2 (en) 2002-09-21 2009-03-10 Pbi Home And Garden Limited Granule distributing apparatus
WO2004063042A3 (en) * 2003-01-16 2004-09-23 Erich Drazdansky Drinking device
JP2016011143A (en) * 2014-06-30 2016-01-21 株式会社吉野工業所 Foam discharge container
CN111619954A (en) * 2020-04-30 2020-09-04 宁波谱莱实验仪器有限公司 Self-closed flow bottle

Also Published As

Publication number Publication date
JPS5548067A (en) 1980-04-05
FR2437355B1 (en) 1983-09-23
CH632462A5 (en) 1982-10-15
IT7925974A0 (en) 1979-09-25
IT1123322B (en) 1986-04-30
FR2437355A1 (en) 1980-04-25
DE2937393A1 (en) 1980-04-03

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)