EP0218666A1 - Tetine de biberon - Google Patents

Tetine de biberon

Info

Publication number
EP0218666A1
EP0218666A1 EP86902455A EP86902455A EP0218666A1 EP 0218666 A1 EP0218666 A1 EP 0218666A1 EP 86902455 A EP86902455 A EP 86902455A EP 86902455 A EP86902455 A EP 86902455A EP 0218666 A1 EP0218666 A1 EP 0218666A1
Authority
EP
European Patent Office
Prior art keywords
nipple
cap
moulded
feeding
rubber
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Withdrawn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
EP86902455A
Other languages
German (de)
English (en)
Inventor
Plaphongphanich Vichai
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.)
Lsr Baby Products (uk) Ltd
Original Assignee
Lsr Baby Products (uk) 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
Priority claimed from GB858510348A external-priority patent/GB8510348D0/en
Application filed by Lsr Baby Products (uk) Ltd filed Critical Lsr Baby Products (uk) Ltd
Publication of EP0218666A1 publication Critical patent/EP0218666A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J11/00—Teats
    • A61J11/04—Teats with means for fastening to bottles
    • A61J11/045—Teats with means for fastening to bottles with interlocking means, e.g. protrusions or indentations on the teat
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J11/00—Teats
    • A61J11/04—Teats with means for fastening to bottles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J17/00—Baby-comforters; Teething rings
    • A61J17/001—Baby-comforters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J17/00—Baby-comforters; Teething rings
    • A61J17/10—Details; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1657—Making multilayered or multicoloured articles using means for adhering or bonding the layers or parts to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
    • B29C2045/1678—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part first moulding the soft material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2083/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material
    • B29K2083/005—LSR, i.e. liquid silicone rubbers, or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2283/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen or carbon only, in the main chain, as reinforcement

Definitions

  • This invention relates to babies's feeding bottles and also to pacifiers, which provide a nipple or a nipple substitute.
  • nipple which term is to include a nipple substitute
  • liquid silicone rubber which is vulcanised to provide the required stiffness/flexibility
  • the conventional construction of babies' feeding bottle has the nipple provided with a radially extending flange which is trapped between the end of the bottle per se and a threaded cap.
  • the flange has to be substantial in surface area and also in thickness to provide a reasonable degree of security, which increases the volume of material required, and even then there is the possibility of the nipple being pulled out of the cap by the baby.
  • a feeding or pacifying nipple for a baby is made of liquid silicon rubber and has an adjacent mouth shield, and is characterised in that the shield is made of a different stiffer material moulded separately from the nipple but connected therewith.
  • Polypropylene may be used for the shield.
  • Suitable grades of liquid silicon rubber and polypropylene have melting points separated by a temperature difference of the order of 200 ⁇ F
  • the required pressure of injection of the plasticized materials may be of the order of 10:1 in the reverse direction as compared to the melting points; that is to say the lower melting point polypropylene needs the higher injection pressure.
  • FIG. 1 is an elevation, partly in section, showing a baby's feeding bottle
  • Figure 2 is an enlarged fragmentary view; and Figure 3 is a somewhat diagrammatic sectional elevation to illustrate the method employed in the design according to Figures 1 to 3; Figure 4 is a view similar to Figure 1 of the second embodiment;
  • Figure 5 is a sectional plan taken on the line 5-5 of Figure 4;
  • Figure 6 is a sectional elevation taken on the line6-6 of Figure 4;
  • Figure 7 is a sectional elevation through a multi-station moulding machine.
  • Figures 8 and 9 show, on a larger scale, further details of the apparatus and moulding cycle.
  • a feeding bottle comprises an entirely conventional bottle per se 10 provided with male screwthreads 11 around the opening or mouth of the bottle.
  • Cap 12 has complementary female screw threads and is, in the illustrated assembly of Figure 1 ready for use, effectively integral and of one piece construction with the nipple 14, although made of two pieces. That is to say it is not intended to be separable.
  • the nipple may be of circular cross-section throughout its length or it may be of any required and different cross-section for example of so-called orthodontic shape in which the nipple is symmetrical about a plane containing the longitudinal axis, and is shaped to conform more closely to the contour of the human mouth.
  • nipple is a true nipple as illustrated or is a nipple substitute, viz a baby pacifier or "dummy" the nipple is to be made substantially unitary with the screw cap part 12 which may be considered to be a mouth-shield, by moulding the materials of the cap 12 and the nipple in a manner which interlocks the two together.
  • the nipple comprises a cylindrical portion 16, a relatively narrow radially and externally directed flange 18 at one end of this portion, and a further, but larger diameter, cylindrical portion 20 extending parallel to the part 16.
  • An annular opening 24 is left between the tapering portion 26 ( (which leads to the tubular portion 28 through which food is extracted by the baby) and said opening may be of the same dimensions axially of the bottle as the gap radially separating the cylindrical portions 16 and 20 (but in the illustrations is larger).
  • the nipple is moulded with a hook shape as viewed in radial section.
  • the nipple may be made in a mould cavity including a core defining the internal configuration, by an injection moulding process with the material of the nipple, that is to say with silicon rubber, being subsequently vulcanised in the mould.
  • the mould parts are separated and the nipple peeled from the core.
  • the cap 12 is then moulded from a material having a lower melting point than that of the rubber, and polypropylene is a suitable and preferred mate-rial.
  • the cap is moulded in a cavity which largely provides for the exterior and interior shape of the cap, but which also accommodates the nipple and provides a core to support the interior of the nipple.
  • Figure 3 shows one possible assembly arrangement with the nipple 14 supported on a plug-like core piece 34 carried in a central circular recess in an internal mould part 36 cooperating with an external mould part 38.
  • the mould part 36 is provided with a configuration at 42 to form an internal screwthread or like in the cap part 12 which is to be moulded in the cavity, the injected molten material filling the annulus 24 of the space 30 to interlock the parts together against inadvertent separation, particularly by the baby when the article is in use.
  • the plug or mandrel 34 is waisted to allow the injected material forming the cap to form an annulus 44 about the plug and inside the part 16 but connected to the body of the cap.
  • the relatively soft and flexible rubber of the nipple is locked into the moulded configuration of the polypropylene or like.
  • the hook shape becomes substantially enclosed and its interior filled with the stiffer material to interlock the parts.
  • the core part 34 could be made integral with the part 36.
  • the design of the screw-thread is such that mould rotation is unnecessary and the cap can be pulled off the forming tool.
  • the cap 12 will be replaced by a mouth shield, and the nipple 14 by a nipple substitute.
  • the interengagement of the latter and the mouth shield will be generally the same as that of nipple and cap in the illustrated embodiment.
  • this second embodiment of the invention uses a similar bottle and indeed generally similar cap which forms a mouth shield, but the cap as best seen in Figures 5 and 6 is moulded first instead of second.
  • the cap is also made of polypropylene or like, with a central large circular aperture 50 and a ring of small apertures 52 surrounding that aperture 50.
  • liquid silicon rubber is injected into a cavity defined in part by the cap to form tne nipple (or the substitute in the case of a pacifier) per se terminating in a generally cylindrical portion 54 extending through the aperture 50.
  • a planar flange 5b is moulded with the portion 50, on the inside (in use) of the cap with the peripheral bead 58 of dovetail section to key into a like slot moulded in the polypropylene or like.
  • the radially innermost marginal area of the flange 56 is located below (in the illustration of Figure 6) the area of the ring of small apertures.
  • a like flange 60 overlies them, and the liquid silicon rubber also fills them, forming a series of posts 62. These anchor the soft rubber to the hard polypropylene in a particularly efficacious manner ensuring that the nipple cannot be separated from the mouth shield except by an actual shearing of the rubber at each and everyone of those posts.
  • the required injection pressure for the rubber is relatively low so that the relative stiffness of the first moulded part, which even if hot, is at a temperature below its actual melting point at the time when the rubber is injected, can serve to maintain the shape of the first moulded part at least until the injection cycle is completed, whereafter the injected rubber contact with the first moulded part will support the polypropylene cap, and thereafter the temperature of the rubber falls so that any risk of damage to the first moulded part decreases.
  • the polypropylene or like pre-mould with an enlarged beaded or headed section next to the opening 50, at 64, and preferably also with grooves or serrations 66 on the flange adjacent faces.
  • the fine detail of these may be blurred as a result of softening action of the higher temperature rubber, but in Applicants' experiments this has not been found disadvantageous.
  • Figure 7 illustrates details of a practical apparatus for making the Figures 4 to 6 version.
  • This utilises a rotatable structure 70 carrying a series of generally cylindrical sleeves 72 which co-operate with core mandrels 74 to define the required internal shape of the caps to be moulded from a harder material, that is the polypropylene or the like.
  • core mandrels 74 to define the required internal shape of the caps to be moulded from a harder material, that is the polypropylene or the like.
  • two caps are moulded simultaneously in side by side cavities.
  • the members 74 also form the large central holes and the ring of small holes in each cap.
  • a second mould part 76 is employed which is clamped against the adjacent face of the rotatable part 70 and also against the end face of the mandrel 74.
  • Injection ports 78 provide for flow of the plasticized material.
  • mould parts 76 and mandrels 74 are moved in opposite directions (arrows A Figure 7) to withdraw the mandrels from the sleeves 72 and withdraw the mould part 76 from the formed caps.
  • the mandrels are moved in opposite directions (arrows A Figure 7) to withdraw the mandrels from the sleeves 72 and withdraw the mould part 76 from the formed caps.
  • the mould parts 80 are arranged to hold the caps in place, for example by contact between the parts 80 and the caps at a pair of annular zones, in particular 5 82, 84, as best seen in Figure 9. Between these zones the mould part 80 is spaced from the cap to minimise heat transfer between the mould part 80 and the cap. Such heat transfer may be further limited by arranging for the part 80 to be water-cooled, 10 for example by flow through passages 88.
  • the new mandrels used in this subsequent and teat forming stage are provided with an appropriate teat-forming shape complementary to the like cavity in the parts 86 and contact the formed caps at 15 an annular zone 90 generally facing the zone 82 at which the mould part 80 contacts the cap. Hence each cap is firmly gripped between the confronting zones 82, 90.
  • the mandrel may also be water-cooled if required, 20 and conveniently is provided with a thermo-couple 92 for temperature sensing.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pediatric Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Abstract

Tétine (14) de biberon pour bébé fait en caoutchouc silicieux liquide façonné dans un moule et en partie vulcanisé dans ledit moule, ladite tétine étant reliée à un couvercle (12) en polypropylène ou en matériau similaire rigide. Le couvercle (12) et la tétine (14) sont fixés solidaires l'un à l'autre par des opérations de moulage. La présente invention se rapporte également à un substitut de tétine comparable utilisé dans une sucette pour bébé, la tétine étant moulée à un protège-bouche par une technique généralement similaire.
EP86902455A 1985-04-23 1986-04-16 Tetine de biberon Withdrawn EP0218666A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB858510348A GB8510348D0 (en) 1985-04-23 1985-04-23 Nipple
GB8510348 1985-04-23
GB8526456 1985-10-28
GB858526456A GB8526456D0 (en) 1985-04-23 1985-10-28 Nipple

Publications (1)

Publication Number Publication Date
EP0218666A1 true EP0218666A1 (fr) 1987-04-22

Family

ID=26289156

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86902455A Withdrawn EP0218666A1 (fr) 1985-04-23 1986-04-16 Tetine de biberon

Country Status (4)

Country Link
EP (1) EP0218666A1 (fr)
AU (1) AU5777886A (fr)
GB (1) GB8526456D0 (fr)
WO (1) WO1986006273A1 (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62264920A (ja) * 1986-05-13 1987-11-17 Toray Silicone Co Ltd シリコ−ンゴムと熱可塑性樹脂からなる複合体の製造方法
GB8717331D0 (en) * 1987-07-22 1987-08-26 Cannon Babysafe Ltd Disposable fluid dispenser
FR2618683B1 (fr) * 1987-07-31 1992-03-06 Aguettant Lab Procede de fabrication de pieces d'acces de recipients de liquides de perfusion
AT392211B (de) * 1987-10-09 1991-02-25 Mam Babyartikel Saugflasche
US5275619A (en) * 1991-01-03 1994-01-04 Board Of Regents, The University Of Texas System Low birth weight infant pacifier
US5464578A (en) * 1992-03-18 1995-11-07 Hewlett-Packard Company Method of making a compact fluid coupler for thermal inkjet print cartridge ink reservoir
DE19520540C2 (de) * 1995-06-03 2002-02-28 Mapa Gmbh Gummi Plastikwerke Verfahren zum Herstellen eines Saugers für Befestigung an Flaschen
DE19533137C1 (de) * 1995-09-07 1996-12-19 Krauss Maffei Ag Vorrichtung zur Herstellung eines Thermoplast-Silikon-Verbundspritzgießteils
FR2747372B1 (fr) * 1996-04-12 1998-06-26 Central Labo Europ Sarl Bouchon presentant une bague et une partie en forme de tetine
US6003698A (en) * 1997-04-14 1999-12-21 Playtex Products, Inc. One piece nipple/ring
US6032810A (en) * 1997-07-17 2000-03-07 Gerber Products Company One-piece nipple/collar for nursers and the like
NZ506845A (en) * 1998-02-21 2003-09-26 Steribottle Ltd Single use feed bottles for babies
GB2391191C (en) * 2002-07-24 2008-01-21 Vital Innovations Ltd Marking plastics products
US7712617B2 (en) 2002-11-08 2010-05-11 Medela Holding Ag Artificial nipple
GB2402712B (en) * 2003-06-13 2006-04-19 Ten Cate Plasticum Improvements relating to dispensing apparatus
US7540388B2 (en) 2004-05-07 2009-06-02 Medela Holding Ag Artificial feeding nipple tip with variable flow construction
WO2007145732A2 (fr) 2006-05-04 2007-12-21 Csp Technologies, Inc. Procédé de moulage par injection de couplages mécaniques entre des éléments moulés
GB2485399B (en) * 2010-11-12 2014-02-12 Mark Harrison Container preventing contact with plastics
CH704758A1 (de) 2011-03-29 2012-10-15 Medela Holding Ag Saugnippeleinheit.
JP7273486B2 (ja) * 2018-11-29 2023-05-15 日本クロージャー株式会社 スリットバルブ付容器蓋
GB201905182D0 (en) * 2019-04-11 2019-05-29 Obrist Closures Switzerland Valve

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB584080A (en) * 1944-11-23 1947-01-07 Frank Alan Middleton Improvements in or relating to baby soothers or the like
FR1118226A (fr) * 1954-01-25 1956-06-01 Thomson Houston Comp Francaise Tétines en caoutchouc de silicone
US3650270A (en) * 1970-02-18 1972-03-21 West Co Nipple-retaining ring assembly
US4297313A (en) * 1978-08-18 1981-10-27 Duckstein Stuart S Method for manufacturing a pacifier
US4195638A (en) * 1978-08-18 1980-04-01 Duckstein Stuart S Pacifier
DE3316824A1 (de) * 1983-05-07 1984-11-08 Mapa GmbH Gummi- und Plastikwerke, 2730 Zeven Verfahren zur herstellung eines saugers mit mundplatte und nach diesem verfahren hergestellter sauger

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8606273A1 *

Also Published As

Publication number Publication date
WO1986006273A1 (fr) 1986-11-06
AU5777886A (en) 1986-11-18
GB8526456D0 (en) 1985-11-27

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