Flow control

Abstract

A flow regulator for a dispensing closure is provided. The regulator comprises a dispensing conduit. The conduit is provided with a plurality of baffle members. Baffles members are positioned at two or more different axial positions along the interior of the conduit.

Description

[0001] P13947PC01

[0002] FLOW CONTROL

[0003] The present disclosure relates generally to devices for the controlled delivery of fluids and particularly, although not exclusively, to fluid flow control features and container closures incorporating fluid flow control.

[0004] This application claims the benefit of priority from US provisional patent application number 63 / 773,851 and UK patent application number 2602520.5, the contents of which are incorporated by reference.

[0005] Aspects and embodiments of the present invention provide or relate to improvements in or relating to flow control.

[0006] An aspect provides or relates to a flow regulator for a dispensing closure. The regulator may comprise a dispensing conduit. The conduit may be provided with a plurality of baffle members. Baffles members may be positioned at two or more different axial positions along the interior of the conduit.

[0007] An aspect of the present invention provides a flow regulator for a dispensing closure, comprising a dispensing conduit, the conduit is provided with a plurality of baffle members, in which baffles members are positioned at two or more different positions axially along the interior of the conduit.

[0008] In some embodiments the baffle members are formed as sectors. For example the baffle members may be formed as quadrants of a generally circular section conduit.

[0009] The baffle members may together define a generally central hole.

[0010] The size of the central hole may be adapted for different products. For example the central hole may have a diameter in the range 1.0mm to 1.5mm. Holes / orifices less than 1.0mm and greater than 1.5mm are possible.

[0011] In some embodiments baffle members may be mutually spaced in a perimetral (e.g. circumferential) sense, as well as in an axial sense.

[0012] The baffle members may be rigid. Alternatively the baffle members may be flexible (e.g. as a result of the material choice and / or thickness). In some embodiments some members are rigid and others are flexible.

[0013] The baffle members may comprise a hinge.P13947PC01

[0014] The conduit may be generally cylindrical.

[0015] The conduit may have a generally circular section.

[0016] The conduit may be formed in or as a spout.

[0017] The conduit may be formed in an insert.

[0018] In some embodiments (only) two different axial positions are provided. The axial positions may, for example, be different by 1.0mm to 1.5mm e.g. 1.1mm. The height difference may be selected to accommodate different products.

[0019] The baffle members may be generally linear / straight.

[0020] Baffle members may extend generally orthogonally to a flow axis of the conduit.

[0021] Each baffle member may have a generally flat lower surface and an inclined / angled upper surface.

[0022] Some embodiments have exactly four baffle members, with two members positioned at a first axial position and two members positioned at a second, different axial position in the conduit.

[0023] The present invention also provides a dispensing closure for flowable product comprising a flow regulator as claimed in any preceding claim. The closure may, for example, comprise a base and a lid. Also provided is a closure in combination with a container.

[0024] An aspect of the present invention provides a closure comprising a spout with shutters. The shutters are in the spout. In some embodiments, a shutter comprises a stationary part and a pivoting part. In some embodiments, the stationary part and the pivoting part of a shutter is defined by a hinge.

[0025] An aspect of the present invention relates generally to closures and particularly, although not exclusively, to a spout of a closure.

[0026] In some embodiments a lid is hinged to a base.

[0027] In some embodiments, the spout comprises two, three, four, five or six shutters.

[0028] The pivoting part of a shutter is able to rotate from an obstructing position to an opening position.P13947PC01

[0029] In the obstructing position, the pivoting part of a shutter is essentially perpendicular to the path of a product exiting the spout.

[0030] In the opening position, the pivoting part of a shutter is essentially parallel to the path of a product exiting the spout.

[0031] In some embodiments, the pivoting part of a shutter moves from the obstructing position to the opening position by moving away from the spout.

[0032] In some embodiments, the pivoting part of a shutter can be moved from the obstructing position to the opening position by the product, e.g. when a container is squeezed so the pressure inside the container is greater than the atmospheric pressure leading to the product pushing away the pivoting part of a shutter into the opening position.

[0033] In some embodiments, the range through which the pivoting part of a shutter moves from the obstructing position to the open position is up to 180 degrees, or preferably 120 degrees or even more preferably 90 degrees.

[0034] In some embodiments, the stationary part and the pivoting part of a shutter is defined by a smaller thickness. In some embodiments, the stationary part and the pivoting part of a shutter is defined by a groove on each side of the shutter. This permits to reduce the thickness and thus allow an easier rotation.

[0035] In some embodiments, the hinge is perpendicular to the path of the product exiting the spout.

[0036] In some embodiments, the shutters have the same shape. It helps to have a homogeneous product flow.

[0037] In some preferred embodiments, the shutters are spaced. Spacing the shutters permit to avoid contact between the shutters which limit the risk of breakage or damages to the shutters.

[0038] A further aspect provides a flow regulator for a dispensing closure, comprising dispensing conduit having a plurality of flow directing ramps, the ramps are inclined from a product flow axis.

[0039] The ramps may together define a central hole

[0040] The axial sides of the ramps may be formed as intercepted arcs. The intercepted arcs may define the central hole.

[0041] The regulator may be configured to cause a generally vorticial product flow.P13947PC01

[0042] In some embodiments exactly four ramps are provided.

[0043] The inclination of all ramps may be substantially the same.

[0044] Ramps may be generally evenly distributed around the interior of the conduit.

[0045] The conduit may be generally cylindrical.

[0046] The conduit may have a generally circular section.

[0047] The conduit may be formed in, as part of, or as a dispensing member such as a spout.

[0048] The conduit may be formed in, as part of, or as an insert (e.g. suitable for insertion into a dispensing closure).

[0049] A further aspect provides a flow regulator for a dispensing closure, comprising a generally cylindrical dispensing conduit, the conduit is provided with a generally diametral baffle.

[0050] Arcuate baffle members may extend from the diametral baffle. For example, towards both ends of the diametral baffle an arcuate baffle may extends from both sides thereof (i.e. four in total).

[0051] Arcuate baffles may be inclined with respect to a main axis of the conduit (which may be the same as a product flow path).

[0052] In some embodiments, at the centre of the diametral baffle a (e.g. generally circular) hub is provided.

[0053] The diametral baffle may form part of a frusto conical portion of the conduit.

[0054] The diametral baffle may be formed at or towards a product intake end of the conduit.

[0055] The conduit may be formed in or as a spout.

[0056] The conduit may be formed as an insert.

[0057] Some aspects and embodiments of the present invention relate generally to a closure and particularly, although not exclusively, to a dispensing closure including flow control functionality.P13947PC01

[0058] A dispensing closure is one which is typically held in place on, and associated with, the mouth of a container. They often have an orifice which is associated with the orifice in the container such that the contents of the container may only be dispensed via the orifice in the closure.

[0059] Such dispensing closures often also comprise a lid which may be hinged to the dispensing closure and which may be formed integrally therewith (known, for example, as a flip-top dispensing closure). The purpose of the lid is often to seal the orifice in the closure so that, in the closed position, no product may be dispensed whether deliberately or accidentally.

[0060] The present invention provides a dispensing closure for flowable product comprising a flow regulator as described herein.

[0061] Also provided is a closure in combination with a container. The container may, for example, be a squeezable container. Squeezing the container causes dispensing of product, at least partly under the control of the flow regulator.

[0062] The present disclosure may provide an insert for a dispensing closure of the type having a housing with engagement means adapted to receive a flow control insert. The insert may have standardised insert engagement means adapted to engage the housing engagement means and thereby to be received / receivable directly into the closure housing in use.

[0063] The present disclosure may provide a single moulded component (moulded in e.g. PP, PE, TPE, TPS). The insert may be configured to fit into the same closure retention features as per existing flow control inserts. The insert may provide a dispensing “baffle”.

[0064] In some embodiments the design is envisaged to be used with any dispensing fluid for instance personal care cleaning products, drinks or sauce condiments.

[0065] Embodiments may be suitable for inverted packs (condiments, shower gels etc.) and upright packs (beverages, shampoos etc.)

[0066] All parts may be designed to be suitable for injection moulded in polypropylene or polyethylene although other materials or process could be utilised.

[0067] Flow regulators formed in accordance with the present invention may be provided as part of a dispensing closure e.g. moulded in.

[0068] Flow regulators formed in accordance with the present invention may be provided as an insert e.g. formed separately from a closure and attachable / connectable thereto.P13947PC01

[0069] An insert may consist of a single piece moulding. The insert may have a central hole pluggable by a closure spigot in use. The present disclosure also provides, in combination, a dispensing closure and an insert as described herein. The present disclosure also provides a flow control insert which is assemblable into a dispensing closure, the insert comprises a single moulding,

[0070] In some embodiments the flow control member is formed as a separate insert.

[0071] For example, the insert may be designed to fit into the same closure retention features as used by existing inserts. In one embodiment, for example, the insert engaging means may include a bead projecting radially outward from an exterior wall for snap-fitting the insert into the dispensing closure. The bead for snap-fitting may be arranged so that it seals against the dispensing closure so that the product only passes through the orifice of the insert and not around the sides. Alternatively, and / or additionally, the insert could be glued, welded and / or retained in the closure by other means. The insert may include an inner sealing bead projecting axially outward from an exterior wall for providing a seal between the insert and closure in use.

[0072] Alternatively, and / or additionally, the insert may include means to locate the insert in a closure in use, wherein the means project axially outward from an exterior wall of the insert. The locating means may provide a seal against the closure, in use. The insert may be produced from plastics, which in one embodiment are injection moulded. In another aspect, the disclosure provides a combination of a dispensing closure and an insert comprising one or more of the features described herein.

[0073] Some aspects and embodiments relate to a spout insert for a closure and / or a valve subassembly (VSA) for use in a dispensing closure.

[0074] Some embodiments provide a 1 -piece device, other embodiments provide a 2-piece device, and yet other embodiments use a 3-piece assembly, for example.

[0075] In some aspects and embodiments a spout device is formed as an integral part of a closure. In other aspects and embodiments a device is formed separately and is attachable to a closure.

[0076] In some embodiments a closure having, provided with or incorporating a flow control device is a flip-top closure having a base and lid joined by a hinge.

[0077] Some embodiments include a tamper-evident system comprising two (or more) rings frangibly joined together. The rings are split apart upon first opening of the closure (e.g. by lifting of a lid). In some embodiments a lower ring drops and an upper ring is retained in a lid.P13947PC01

[0078] Flow regulating features (e.g. baffle members or ramps) may, for example, be formed on a spout wall or spout portion wall. Such a wall may be an inner wall (and the spout / potion may comprise an outer wall).

[0079] Aspects and embodiments of the present invention are listed in the following numbered paragraphs.

[0080] 1. A flow regulator for a dispensing closure, comprising a dispensing conduit, the conduit is provided with a plurality of baffle members, in which baffles members are positioned at two or more different positions axially along the interior of the conduit.

[0081] 2. A flow regulator according to paragraph 1, in which the baffle members are formed as sectors.

[0082] 3. A flow regulator according to paragraph 1 or paragraph 2, in which the baffle members are formed as quadrants.

[0083] 4. A flow regulator as claimed in any preceding paragraph, in which the baffle members together define a generally central hole.

[0084] 5. A flow regulator according to paragraph 4, in which the central hole has a diameter in the range 1.0mm to 1 ,5mm.

[0085] 6. A flow regulator according to any preceding paragraph, in which baffle members are mutually spaced in a perimetral sense.

[0086] 7. A flow regulator according to any preceding paragraph, in which the baffle members are rigid.

[0087] 8. A flow regulator according to any preceding paragraph, in which the baffle members are flexible.

[0088] 9. A flow regulator according to any preceding paragraph, in which the baffle members comprise a hinge.

[0089] 10. A flow regulator according to any preceding paragraph, in which the conduit is generally cylindrical.

[0090] 11. A flow regulator according to any preceding paragraph, in which the conduit has a generally circular section.P13947PC01

[0091] 12. A flow regulator according to any preceding paragraph, in which the conduit is formed in or as a spout.

[0092] 13. A flow regulator according to any preceding paragraph, in which the conduit is formed in an insert.

[0093] 14. A flow regulator according to any preceding paragraph, in which two different axial positions are provided and the axial positions are different by 1.0mm to 1.5mm.

[0094] 15. A flow regulator according to any preceding paragraph, in which the baffle members are generally linear.

[0095] 16. A flow regulator according to any preceding paragraph, in which baffle members extends generally orthogonally.

[0096] 17. A flow regulator according to any preceding paragraph, in which each baffle member has a generally flat lower surface and an inclined upper surface.

[0097] 18. A flow regulator according to any preceding paragraph, having exactly four baffle members, with two members positioned at a first axial position and two members positioned at a second, different axial position in the conduit.

[0098] 19. A dispensing closure for flowable product comprising a flow regulator according to any preceding paragraph.

[0099] 20. A closure according to paragraph 19 in combination with a container.

[0100] 21. A flow regulator for a dispensing closure, comprising a dispensing conduit, the conduit is provided with a plurality of shutters, each shutter comprises a stationary part and a pivoting part.

[0101] 22. A flow regulator according to paragraph 21, in which the stationary part and the pivoting part of each shutter is defined by a hinge.

[0102] 23. A flow regulator according to paragraph 21 or paragraph 22, comprising two, three, four, five or six shutters.

[0103] 24. A flow regulator according to any of paragraphs 21 to 23, in which the pivoting part of a shutter is able to rotate from an obstructing position to an opening position.P13947PC01

[0104] 25. A flow regulator according to paragraph 24, in which in the obstructing position the pivoting part of a shutter is essentially perpendicular to the path of a product exiting the spout.

[0105] 26. A flow regulator according to paragraph 24 or paragraph 25, in which in the opening position, the pivoting part of a shutter is essentially parallel to the path of product flow through the conduit.

[0106] 27. A flow regulator according to any of paragraphs 24 to 26, in which the pivoting part of a shutter moves from the obstructing position to the opening position by moving away from the terminus of the conduit.

[0107] 28. A flow regulator according to any of paragraphs 24 to 27, in which the pivoting part of a shutter is configured to be moved from the obstructing position to the opening position by the product.

[0108] 29. A flow regulator according to any of paragraphs 24 to 28, in which the range through which the pivoting part of a shutter moves from the obstructing position to the open position is up to 180 degrees, or up to 120 degrees or up to 90 degrees.

[0109] 30. A flow regulator according to any of paragraphs 21 to 29, in which the stationary part and the pivoting part of a shutter is defined by a smaller thickness.

[0110] 31. A flow regulator according to any of paragraphs 21 to 30, in which the stationary part and the pivoting part of a shutter is defined by a groove on each side of the shutter.

[0111] 32. A flow regulator according to any of paragraphs 21 to 31, in which the hinge is perpendicular to the path of the product exiting the conduit.

[0112] 33. A flow regulator according to any of paragraphs 21 to 32, in which all shutters have generally the same shape.

[0113] 34. A flow regulator according to any of paragraphs 21 to 33, in which the shutters are spaced.

[0114] 35. A flow regulator according to any of paragraphs 21 to 34, in which the conduit is formed in or as a spout.

[0115] 36. A flow regulator according to any of paragraphs 21 to 35, in which the conduit is formed in an insert.P13947PC01

[0116] 37. A dispensing closure for flowable product comprising a flow regulator according to any of paragraphs 21 to 37.

[0117] 38. A closure according to paragraph 37 in combination with a container.

[0118] 39. A flow regulator for a dispensing closure, comprising dispensing conduit having a plurality of flow directing ramps, the ramps are inclined from a product flow axis.

[0119] 40. A flow regulator according to paragraph 39, in which the ramps together define a central hole

[0120] 41. A flow regulator according to paragraph 39 or paragraph 40, in which the axial sides of the ramps are formed as intercepted arcs.

[0121] 42. A flow regulator according to any of paragraphs 39 to 41, configured to cause a generally vorticial product flow.

[0122] 43. A flow regulator according to any of paragraphs 39 to 42, in which exactly four ramps are provided.

[0123] 45. A flow regulator according to any of paragraphs 39 to 43, in which the inclination of all ramps is substantially the same.

[0124] 46. A flow regulator according to any of paragraphs 39 to 46, in which ramps are generally evenly distributed around the interior of the conduit.

[0125] 47. A flow regulator according to any of paragraphs 39 to 46, in which the conduit is generally cylindrical.

[0126] 48. A flow regulator according to any of paragraphs 39 to 47, in which the conduit has a generally circular section.

[0127] 49. A flow regulator according to any of paragraphs 39 to 48, in which the conduit is formed in or as a spout.

[0128] 50. A flow regulator according to any of paragraphs 39 to 48, in which the conduit is formed in an insert.

[0129] 51. A dispensing closure for flowable product comprising a flow regulator according to any of paragraphs 39 to 50.P13947PC01

[0130] 52. A closure according to paragraph 51 in combination with a container.

[0131] 53. A flow regulator for a dispensing closure, comprising a generally cylindrical dispensing conduit, the conduit is provided with a generally diametral baffle.

[0132] 54. A flow regulator according to paragraph 53, in which arcuate baffle members extend from the diametral baffle.

[0133] 55. A flow regulator according to paragraph 54, in which towards both ends of the diametral baffle an arcuate baffle extends from both sides thereof.

[0134] 56. A flow regulator according to paragraph 54 or paragraph 55, in which the arcuate baffles are inclined.

[0135] 57. A flow regulator according to any of paragraphs 53 to 56, in which at the centre of the diametral baffle a generally circular hub is provided.

[0136] 58. A flow regulator according to any of paragraphs 53 to 56, in which the diametral baffle forms part of a frusto conical portion of the conduit.

[0137] 59. A flow regulator according to any of paragraphs 53 to 57, in which the diametral baffle is formed at a product intake end of the conduit.

[0138] 60. A flow regulator according to any of paragraphs 53 to 59, in which the conduit is formed in or as a spout.

[0139] 61. A flow regulator according to any of paragraphs 53 to 59, in which the conduit is formed in an insert.

[0140] 62. A dispensing closure for flowable product comprising a flow regulator according to any of paragraphs 53 to 61.

[0141] 63. A closure according to paragraph 62 in combination with a container.

[0142] An aspect of the present invention relates generally to closures and particularly, although not exclusively, to a spout of a closure.

[0143] The closure may comprise a base and a lid.

[0144] In some embodiments a lid is hinged to a base.P13947PC01

[0145] Different aspects and embodiments may be used separately or together.

[0146] The example embodiments are described herein in sufficient detail to enable those of ordinary skill in the art to embody and implement the systems and processes herein described. It is important to understand that embodiments can be provided in many alternative forms and should not be construed as limited to the examples set forth herein.

[0147] Accordingly, while embodiments can be modified in various ways and take on various alternative forms, specific embodiments thereof are shown in the drawings and described in detail herein. There is no intent to limit to the particular forms disclosed.

[0148] Unless otherwise defined, all terms (including technical and scientific terms) used herein are to be interpreted as is customary in the art. It will be further understood that terms in common usage should also be interpreted as is customary in the relevant art and not in an idealised or overly formal sense unless expressly so defined herein.

[0149] All orientational terms, such as upper, lower, radially and axially, are used in relation to the drawings and should not be interpreted as limiting on the invention.

[0150] Further particular and preferred aspects of the present invention are set out in the accompanying independent and dependent claims. Features of the dependent claims may be combined with the features of the independent claims as appropriate, and in combination other than those explicitly set out in the claims.

[0151] The present invention is described, by way of example, with reference to the accompanying drawings, in which:

[0152] Figure 1 illustrates a top view of an embodiment of the present invention;

[0153] Figure 2 illustrates a bottom view of an embodiment of the present invention;

[0154] Figure 3 illustrates a section of an embodiment of the present invention;

[0155] Figure 4 illustrates a section of an embodiment of the present invention;

[0156] Figure 5 is a perspective view of a moulded-in flow regulator formed according to an aspect of the present invention;

[0157] Figure 6 is a section of the regulator of Figure 5;

[0158] Figure 7 is a plan view of the regulator of Figure 5;

[0159] Figure 8 shows a perspective view of a flow regulator formed according to an aspect of the present invention;

[0160] Figure 9 is a section of the regulator of Figure 8;

[0161] Figure 10 is a plan view of the regulator of Figure 8;

[0162] Figure 11 is a perspective view of a dispensing closure formed according to an aspect of the present invention and shown in an open position;P13947PC01

[0163] Figure 12 is a plan view of the closure of Figure 11;

[0164] Figure 13 is an underplan view of the closure of Figure 11 ;

[0165] Figure 14 is a magnified perspective view of a flow regulator forming part of the closure of Figure 11;

[0166] Figure 15 is a plan view of the regulator of Figure 14;

[0167] Figure 16 shows the underside of the regulator of Figure 14;

[0168] Figure 17 is a perspective view of a flow regulator formed according to a further embodiment; Figure 18 is a section of the regulator of Figure 17;

[0169] Figure 19 is a plan view of the regulator of Figure 17;

[0170] Figure 20 is a perspective view of a flow regulator formed according to a further embodiment; Figure 21 is a section of the regulator of Figure 20;

[0171] Figure 22 is a plan view of the regulator of Figure 20;

[0172] Figure 23 is a perspective view of a flow regulation insert formed according to the present invention;

[0173] Figure 24 is a section of the insert of Figure 23;

[0174] Figure 25 is a plan view of the insert of Figure 23;

[0175] Figure 26 is a perspective view of a flow regulation spout formed according to the present invention;

[0176] Figure 27 is a section of the spout of Figure 23;

[0177] Figure 28 is a plan view of the spout of Figure 23;

[0178] Figure 29 is a perspective view of a dispensing closure formed according to an aspect of the present invention and shown in an open position;

[0179] Figure 30 is a plan view of the closure of Figure 29;

[0180] Figure 31 is an underplan view of the closure of Figure 30;

[0181] Figure 32 is a magnified perspective view of a flow regulator forming part of the closure of Figure 29;

[0182] Figure 33 is a plan view of the regulator of Figure 32;

[0183] Figure 34 shows the underside of the regulator of Figure 32;

[0184] Figure 35 is a further perspective view of the flow regulator of Figures 29 to 34;

[0185] Figure 36 is a section of the regulator of Figure 35;

[0186] Figure 37 is a plan view of the regulator of Figure 35;

[0187] Figure 38 illustrates the flow pattern of the regulator of Figures 29 to 37;

[0188] Figure 39 is a perspective view of a flow regulation insert formed according to the present invention;

[0189] Figure 40 is a section of the insert of Figure 39;

[0190] Figure 41 is a plan view of the insert of Figure 39;

[0191] Figure 42 shows a closure suitable for shower gel and suitable to receive a flow regulation insert formed in accordance with the present invention;

[0192] Figure 43 shows a closure base suitable for condiments and suitable to receive a flow regulation insert formed in accordance with the present invention;P13947PC01

[0193] Figure 44 shows a section of a flip-top sports closure suitable to include a moulded-in flow regulator, or to receive a flow regulation insert formed in accordance with the present invention; and

[0194] Figure 45 shows a perspective section of the closure of Figure 44.

[0195] Example embodiments are described in sufficient detail to enable those of ordinary skill in the art to embody and implement the systems and processes herein described. It is important to understand that embodiments can be provided in many alternate forms and should not be construed as limited to the examples set forth herein.

[0196] Accordingly, while embodiments can be modified in various ways and take on various alternative forms, specific embodiments thereof are shown in the drawings and described in detail below as examples. There is no intent to limit to the particular forms disclosed. On the contrary, all modifications, equivalents, and alternatives falling within the scope of the appended claims should be included. Elements of the example embodiments are consistently denoted by the same reference numerals throughout the drawings and detailed description where appropriate.

[0197] The terminology used herein to describe embodiments is not intended to limit the scope. The articles “a,” “an,” and “the” are singular in that they have a single referent, however the use of the singular form in the present document should not preclude the presence of more than one referent. In other words, elements referred to in the singular can number one or more, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises,” “comprising,” “includes,” and / or “including,” when used herein, specify the presence of stated features, items, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, items, steps, operations, elements, components, and / or groups thereof.

[0198] Unless otherwise defined, all terms (including technical and scientific terms) used herein are to be interpreted as is customary in the art. It will be further understood that terms in common usage should also be interpreted as is customary in the relevant art and not in an idealized or overly formal sense unless expressly so defined herein.

[0199] Referring first to Figures 1 to 4, there is shown a closure 1 formed according to the present invention.

[0200] Figures 1 to 4 illustrate a closure 1 comprising a spout 3 with shutters.

[0201] The closure 1 comprises a base 2 and a lid (not represented on the Figures).

[0202] The base comprises an essentially cylindrical dispensing spout 3 with four shutters 4.P13947PC01

[0203] Each shutter 4 comprises a stationary part 41, a pivoting part 42 and a hinge 43 in-between.

[0204] The pivoting part 42 of the shutters has essentially a triangular shape. The pivoting part 42 of the shutters 4 are represented in an obstructing position wherein the pivoting part 42 is essentially perpendicular to the path of a product exiting the spout.

[0205] The hinge 43 is formed by a groove on each side of the shutter 42.

[0206] The shutters 4 are spaced one from another.

[0207] Figures 5 to 7 show a spout region of a dispensing closure. The spout 103 comprises a flow regulator 150.

[0208] The flow regulator 150 comprises a generally cylindrical wall 152 defining a flowthrough conduit along a flow axis X with an intake end 154 and an outlet end 156.

[0209] The interior of the wall 152 is provided with four (in this embodiment) flow regulation ramps 160. In this embodiment each of the ramps is substantially the same.

[0210] The ramps 160 are inclined with respect to the axis X, in this embodiment by approximately 20 degrees. The ramps may be thought of as “slanted webs”.

[0211] The four ramps 160 are arranged around the interior of the wall with approximately even spacing. In this embodiment the ramps are all positioned at the same axial level. There is circumferential spacing between ramps.

[0212] The interior / inboard side 162 of each ramp 160 is arcuate and each ramp extends radially inwards towards the centre of the conduit. As a result a generally central hole 164 is defined.

[0213] In use, flowable product from an associated container (not shown) is forced through the conduit. The ramps 160 induce a generally spiral / vorticial flow in product as it flows through the conduit, which can result in a cleaner dispensing flow.

[0214] Figures 8 to 10 is an alternative version of the regulator of Figures 5 to 7 and formed as an insert 270. The insert 270 has the same flow regulating ramp arrangement.

[0215] The insert 270 is insertable into a dispensing closure; for example into a spout. Engagement means may be provided on the insert; and cooperating engagement means may be provided on a closure.P13947PC01

[0216] Figures 11 to 19 illustrate a flow regulator formed according to a further aspect.

[0217] Figures 11 to 13 show a dispensing closure generally indicated 301.

[0218] The closure 301 comprises a base 302 and a lid 305 that are joined by a hinge 306.

[0219] The base 302 comprises a sunken (in this embodiment) conical spout 303.

[0220] The lid 305 comprises a depending spigot 306 that fits sealingy into the outlet end 356 of the wall to seal the closure when the lid is in a closed position.

[0221] Figures 14 to 19 show a flow regulator portion 357 forming part of the spout 303 in more detail.

[0222] The interior of a wall 352 is provided with baffle members 375a-d (four in this embodiment).

[0223] In plan / underplan view (Figures 15 and 16) the baffle members 375a-d are generally quadrant shaped.

[0224] The apex 377 of each quadrant is truncated so as to be arcuate. This provides a hole 364 at the centre of the flow conduit.

[0225] The members 375a-d are circumferentially mutually spaced (in plan), which provides radial slots / gaps 366. In this embodiment the circumferential extent of each member is the same and the spacing between members is equal.

[0226] As shown best in Figure 18, there is axial offset between members along the length of the conduit wall. More specifically, diametrically opposed members 375a, 375c are at the same level and 375b, 375d are at the same level, but the pairs are at different levels i.e. the pairs are offset with respect to each other. In other words, two of the baffle members are at a first axial position and two are at a second position; with the positions being axially offset to produce a stepped configuration.

[0227] In this embodiment each baffle member 375a-d extends generally orthogonally from the wall. The upper face 377 of each member is inclined; and the lower face 379 of each member is generally flat.

[0228] In use products flows through the conduit and is regulated by the baffle members.

[0229] Figures 20 to 22 shows a spout 403 formed according to a further embodiment using the same principle of stepped baffle members.P13947PC01

[0230] Figures 23 to 25 show an alternative version of the regulator of Figures 11 to 19 and 20 to 22 and formed as an insert 570. The insert 570 has the same flow regulating arrangement.

[0231] The insert 570 is insertable into a dispensing closure; for example into a spout. Engagement means may be provided on the insert; and cooperating engagement means may be provided on a closure.

[0232] Figures 26 to 28 show a spout 603 formed according to a further embodiment.

[0233] The spout 603 is similar to the spout 303 and the spout 403, with offset baffles. In this embodiment each of the baffle members includes a hinge 643, being similar to the shutter arrangement of the spout 3 of Figures 1 to 4.

[0234] Figures 29 to 38 illustrate a flow regulator formed according to a further aspect.

[0235] Figures 29 to 31 show a dispensing closure generally indicated 701.

[0236] The closure 701 comprises a base 702 and a lid 705 that are joined by a hinge 606.

[0237] The base 702 comprises a sunken (in this embodiment) conical spout 703.

[0238] The lid 705 comprises a depending spigot 706 that fits sealingy into the outlet end 756 of the wall to seal the closure when the lid is in a closed position.

[0239] Figures 32 to 37 show a flow regulator forming part of the spout in more detail.

[0240] The conduit wall 752 is formed with a generally cylindrical, straight upper portion 758 at the outlet end, and a generally frusto conical lower portion 659 at the intake end.

[0241] An inclined annular wall 780 extends / depends from the upper portion.

[0242] A diametral baffle member 782 extends across the centre space of the wall 780. A generally circular hub 784 is provided at the middle of the member 782 to define first 786 and second baffle 788 portions either side thereof.

[0243] An arcuate baffle 790 extends from each side of the first and second baffle members.

[0244] The flow channel defined by the regulator portion 757 is illustrated in blue in Figure 38. In some ways this could be though of as a partial annular outer flow channel defined between the inclined annular wall and the arcuate baffles (being two almost semi-circular slots separated by the first and second baffle portions) and a partial annular inner flow channel defined betweenP13947PC01

[0245] the arcuate baffles and the hub (being two almost semi-circular slots separated by the hub and the first and second baffle portions). The outer and inner flow channels are connected by gaps formed between the free ends of arcuate baffles.

[0246] Figures 39 to 41 show an alternative version of the regulator of Figures 29 to 38 and formed as an insert 870. The insert 870 has the same flow regulating arrangement.

[0247] The insert 870 is insertable into a dispensing closure; for example into a spout. Engagement means may be provided on the insert; and cooperating engagement means may be provided on a closure.

[0248] Figure 42 shows a closure 901 of the type suitable for a flow regulator (moulded in or insert) formed in accordance with the present invention. The closure could, for example, be configured as a shower gel variant.

[0249] Figure 43 shows a closure base 1001 of the type suitable for a flow regulator (moulded in or insert) formed in accordance with the present invention. The closure could, for example, be configured as a condiments variant (e.g. for sauces, ketchups etc.). A lid (not shown) may be provided.

[0250] Figures 44 and 45 show a flip-top sports closure 1101 of the type suitable for a flow regulator (moulded in or insert) formed in accordance with the present invention.

[0251] Although illustrative embodiments of the invention have been disclosed in detail herein, with reference to the accompanying drawings, it is understood that the invention is not limited to the precise embodiments shown and that various changes and modifications can be effected therein by one skilled in the art without departing from the scope of the invention as defined by the appended claims and their equivalents.

Claims

P13947PC01CLAIMS1. A flow regulator for a dispensing closure, comprising a dispensing conduit, the conduit is provided with a plurality of baffle members, in which baffles members are positioned at two or more different positions axially along the interior of the conduit.

2. A flow regulator as claimed in claim 1, in which the baffle members are formed as sectors.

3. A flow regulator as claimed in claim 1 or claim 2, in which the baffle members are formed as quadrants.

4. A flow regulator as claimed in any preceding claim, in which the baffle members together define a generally central hole.

5. A flow regulator as claimed in claim 4, in which the central hole has a diameter in the range 1.0mm to 1 ,5mm.

6. A flow regulator as claimed in any preceding claim, in which baffle members are mutually spaced in a perimetral sense.

7. A flow regulator as claimed in any preceding claim, in which the baffle members are rigid.

8. A flow regulator as claimed in any of claims 1 to 6, in which the baffle members are flexible.

9. A flow regulator as claimed in any preceding claim, in which the baffle members comprise a hinge.

10. A flow regulator as claimed in any preceding claim, in which the conduit is generally cylindrical.

11. A flow regulator as claimed in any preceding claim in which the conduit has a generally circular section.

12. A flow regulator as claimed in any preceding claim, in which the conduit is formed in or as a spout.

13. A flow regulator as claimed in any preceding claim, in which the conduit is formed in an insert.P13947PC0114. A flow regulator as claimed in any preceding claim, in which two different axial positions are provided and the axial positions are different by 1.0mm to 1.5mm.

15. A flow regulator as claimed in any preceding claims, in which the baffle members are generally linear.

16. A flow regulator as claimed in any preceding clam, in which baffle members extends generally orthogonally.

17. A flow regulator as claimed in any preceding claim, in which each baffle member has a generally flat lower surface and an inclined upper surface.

18. A flow regulator as claimed in any preceding claim, having exactly four baffle members, with two members positioned at a first axial position and two members positioned at a second, different axial position in the conduit.

19. A dispensing closure for flowable product comprising a flow regulator as claimed in any preceding claim.

20. A closure as claimed in claim 19 in combination with a container.

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