|Publication number||US3718140 A|
|Publication date||Feb 27, 1973|
|Filing date||Oct 13, 1971|
|Priority date||Oct 13, 1971|
|Publication number||US 3718140 A, US 3718140A, US-A-3718140, US3718140 A, US3718140A|
|Original Assignee||A Yamauchi|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (3), Referenced by (67), Classifications (9), Legal Events (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent [191 Yamauchi 1 Feb. 27, 1973 NURSING BOTTLE NIPPLE  Inventor: Akira Yamauchi, Sasayama-cho,
Taki-gun, Hyogo-prefecture, Japan  Filed: Oct. 13, 1971  Appl. No.: 188,841
Related US. Application Data  Division of Ser. No. 23,681, March 30, 1970, Pat.
Primary ExaminerDonald F. Norton Att0rneyE. F. Wenderoth et a1.
[ ABSTRACT An improved nursing bottle nipple particularly adaptable for use with a nursing bottle assembly of the collapsible milk bag type. In such an assembly, the nipple and milk bag full of milk are secured by a fastening ring overlaying the mouth end of a milk bag and bottle housing wherein the open mouth end of the bag is folded outwardly over the housing mouth. The improvement in the nipple structure resides in a novel fluid-passing outlet portion of non-return, self-closing character regardless of the attitude of the nursing bottle assembly. More particularly, the fluid-passing outlet includes a small generally hemispherically convex membrane of thinner material than the rest of the bulbous end body portion of the nipple, which membrane constitutes a miniature form of nipple recessed within and generally not extending beyond the outer surface of the bulbous end portion of the nipple, and is punctured in a Y-shape or X-shape to form a valve of the self-closing character when not in nursing use. The convex membrane has a thicker radially flaring peripheral margin connecting it with a substantially thickened portion of the bulbous end body portion of the nipple, which collectively contribute to both reenforce the non-return type outlet as well as to preclude inward collapse of the convex, nipple-like membrane even under increased negative pressure within the interior of a bottle assembly when in use therewith.
4 Claims, 5 Drawing Figures PATENTED ZY UYS AKLRA YAMAUCHI ATTORN E Y5 NURSING BOTTLE NIPPLE This application is a division of my co-pending application Ser. no. 23,681 filed Mar. 30, 1970, now US. Pat. No. 3,651,973.
The present invention relates to an improvement in a nursing bottle nipple to be used generally for infants.
According to a conventional nursing bottle assembly, a nursing bottle is provided with a nipple attached directly to the mouth of a bottle of a non-variable shape. Another type of nursing bottle assembly more recently in use comprises a bottle shell, a collapsible tubular container such as a sack made of a polyethylene film placed in the bottle shell and having an opening portion adapted to be folded over the mouth of the bot tie, and an annular fastening member for securing the folded portion to the mouth together with a nipple.
When a nursing bottle of the type described is used for feeding an infant, the bottle must be so positioned that the interior of the nipple is filled with milk. Accordingly, there is a need to incline the bottle sufficiently to direct the nipple downward with the face of the infant upward. In addition, the inclination of the bottle, if it is to excess, causes a greater amount of the milk to flow out to choke the infant, while if, on the other hand, the bottle is not sufficiently inclined, outflow of the milk consequently decreases along with increase in sucking resistance. Furthermore, the conventional nursing bottle is found disadvantageous in that continuous sucking action reduces the pressure within the bottle or milk container thereby making suction difficult to cause the milk container, which is normally in cylindrical form, to wrinkle near the shoulder of the bottle during sucking action, and thereby hinders flow of the milk.
A primary object of the present invention is to provide an improved nursing nipple for use with a nursing bottle assembly which is provided with a bottom member adapted to be generally telescopically moved upward or downward so as to keep the interior of the nipple filled with milk without inverting the bottle, the nursing bottle assembly thus insuring feeding operation regardless of the posture of the infant to be nursed.
Another object of the present invention is to provide a nursing bottle nipple having a milk or liquid passing outlet of a special nonreturn formation for completely preventing inflow of air even when the pressure in the milk container decreases due to outflow of the milk, so as to keep the interior of the bottle free of air.
Another object of the present invention is to provide a sanitary nursing bottle nipple of improved character, which is relatively simple in structure and easy to use.
The present invention will hereinafter be described with reference to the accompanying drawings, in which:
FIG. 1 is a view showing a nursing bottle assembly of the collapsible bag type showing the nipple and portions of the assembly partially in vertical cross-section and partly in elevation;
FIG. 2 is a plan view of one form of the improved nipple useable in a nursing bottle assembly of the flexible bag type, which nipple is provided with an outlet of non-return structure;
FIG. 3 is an enlarged fragmentary view shown in cross-section taken along the line 33 in FIG. 2;
FIG. 4 is a view showing another form of collapsible bag type bottle assembly shown also partly in elevation and partly in vertical cross-section; and
FIG. 5 is a fragmentary plan view of an alternate nipple opening.
Referring now to FIG. 1, an outer shell designated at l constitutes a main body of a nursing bottle, and an inner shell or member 2 constitutes a bottom member formed substantially in cyclindrical shape which is adapted to be moved slidably upward or downward by being telescopically guided by the outer shell of the main body 1 at its outer peripheral wall. In the illustrated embodiment, the bottom member 2 is disposed inside the main body 1 for vertical movement in contact with the inner wall of the main body 1. Body 1 is provided with a mouth 3 on which the flange of the nipple seats to be held in place by a nipple fastening ring 4. The nipple S is provided with a particular form of selfclosing, non-return outlet structure 6 for preventing inflow of air. The collapsible milk bag 7 is made, for example, of a soft polyethylene film. The milk bag 7 is placed in the main body 1 with the mouth portion thereof folded over the mouth 3 of the main body 1 along its peripheral edge and the nipple fastening ring 4 is fitted over the nipple 5 placed on the folded portion so as to secure the upper end of the milk bag 7 to the mouth 3.
The structure of the improved nipple 5 in accordance with the present invention is shown in greater detail in FIGS. 2 and 3. It will be seen from these drawings that the generally designated nipple 5 is generally made of soft rubber and embodies an enlarged open end bottle-mouth-cooperating portion 5a, a generally inverted funnel-shape intermediate portion 5b connecting the portion 5a with a constricted generally oval-shape bulbous nipple end Sc. The bulbous nipple end 5c further comprises a center top membrane portion 13 formed in hemispherical convex shape, has a definite predetermined radius, and is generally of much lesser thickness than the wall of the bulbous end 5c. The nipple further embodies a substantially thicker wall portion 12 surrounding the top membrane portion 13, the latter of which is formed integrally therewith and does not project in any substantial manner above the bulbous end portion.
As clearly seen in FIG. 3, the membrane 13 at its marginal juncture with the thickened wall portion 12 is enlargingly flared in both axial directions with the axially inward margin l2a having a notably greater flared thickness than that of the axially outward margin of 12b. These flared portions, particularly that of portion 12a taken in combination with the substantially thickened wall portion 12, serve not only to reenforce the nonreturn outlet 6 to preclude inflow of air, but also to preclude inward collapse of the nipple-like membrane portion 13, even under increased negative pressure within the interior of the bottle assembly when in use. The top center membrane portion 13 is provided with an outlet 6 which is formed by cutting the portion vertically in at least three radial directions in a Y-shape, as shown in FIG. 5, or in the cross-shape, as shown in FIG. 2.
The outlet 6 formed in this manner can be readily opened when subjected to suction externally exerted thereon, while when the interior pressure decreases, the respective parts provided by cutting are brought closer together inward with tight-fit contact effected between cut surfaces, with the result that the inflow of air can be prevented with a high degree of certainty.
Indicated at 8 is a hood or nipple cover, and at the opposite end of the assembly in bottom member 2 an air venting aperture 9 is provided to vent air from the main body 1. The lower peripheral portion of the main body 1 is slightly turned inward to preclude bottom member 2 from dropping therefrom.
To use the nursing bottle of the described character, the bottom member 2 is first brought to the lowermost position of the main body 1. The milk bag 7 with a suitable amount of milk powder placed therein previously or at the time of use is inserted into the main body 1 through the mouth 3 of the milk bottle. The upper end portion of the milk bag 7 is then folded over the peripheral edge of the mouth 3, a desired amount of hot water is poured into the bag 7, and the nipple fastening ring 4 is fitted over the folded portion of the bag 7 with the nipple 5 interposed therebetween so as to secure the folded portion to the upper peripheral edge of the main body 1.
When the bottom member 2 is slowly moved upward, the liquid level is also elevated, causing the air within the milk bag to escape through the outlet 6 in the nipple 5, with the result that the interior of the nipple 5 is completely filled with milk. The nursing bottle thus prepared now enables the infant to suck the milk in an amount in proportion to the suction force, regardless of the degree of inclination and the posture of the infant. Upon suction of an amount of milk, the pressure within the milk bag decreases due to reduction in the interior volume corresponding to the amount, but the nipple outlet 6, which is provided with the special non-return structure described hereinabove, perfectly prevents inflow of air to keep the interior free of air. The milk bag thereby continues to contract and continuously maintains milk within the nipple 5. Even when nursing is discontinued, such state is always ensured for further sucking action. Choke-free feeding with low suction resistance is therefore insured which has not been the case with conventional nursing bottles. This is particularly aided by use of the improved nipple hereof. As nursing proceeds, contraction of the milk bag 7 takes place immediately below the fastening ring 4, and further develops downward, drawing the inner opposite faces of the bag toward each other. In this condition the portion of the milk retained in the nipple 5 and the other portion of the milk in the lower part of the milk bag 7 are communicated through a decreasing passageway formed between the inner faces as the latter are brought closer toward each other by the suction action, with the passage consequently serving as a straw to feed the lower portion of the milk with ease and to effect complete drainage of the milk. For this reason the difficulties heretofore encountered such as wrinkles produced beneath the shoulder of the bottle to hinder the flow of milk can be prevented for smooth and perfect nursing. The improved nursing nipple of the present invention operates to preclude the inflow of air into the milk bag 7, even when sucking action is discontinued, and not only enables the infant to resume nursing under the same conditions as when interrupted, but also precludes invasion of germs to protect milk from decomposition for sanitary preservation.
The FIG. 4 modified assembly embodiment provides for a bottom member 2' of greater skirt length which is telescopically fitted within a main body 1 of the nursing bottle shell. Designated at 10 is an inner projection corresponding generally to the flange formed on the inner wall of the main body 1, said projection 10 being disposed at the lower portion to be engaged with an outwardly projecting complemental flange-like part 11 formed on the outer wall of the bottom member 2' at its upper portion so as to keep the bottom member 2 retained in the main body 1'. With this modified construction the bottle requires only about one-half the volume of the bottle of a regular size.
In addition to the advantages described, the nursing bottle nipple of the present divisional application is unique and efficient and competitively economical to manufacture. Reference should be made to the appended claims for a scope of the invention hereof.
What is claimed is:
1. An improved nursing bottle nipple particularly adaptable for use with a nursing bottle assembly of the flexible, collapsible bag type, said nipple composed of a rubber or similar essentially permanently elastic material having one enlarged open-end bottle-mouthcooperating portion, a generally funnel-shaped intermediate portion connecting said first-mentioned portion with a constricted generally oval-shaped nipple end portion having a bulbous body portion and punctured so as to form a nursing fluid-passing outlet of an improved non-return and self-closing character when not in use, regardless of the attitude of the nursing bottle, said nipple punctured end comprising a small generally hemispherically convex-shaped punctured membrane formed of substantially thinner material than the rest of the bulbous body portion, the material of the bulbous body portion in the area directly adjacent and completely surrounding an outer margin of said membrane being substantially thicker than that of said bulbous body portion, said membrane having a thicker radially flaring peripheral margin connecting it with said substantially thicker area of the bulbous portion, said membrane thicker peripheral margin being flared in both an axially inward and axially outward manner with said axially inward flared margin having a thickness greater than said axially outward flared margin, said thicker flared marginal portion of said membrane together with the substantially thicker portion of the bulbous body portion surrounding said membrane collectively serving to give added strength thereto to preclude inwardly collapse of said nipple and membrane portion, even when subjected to a negative pressure from within the assembled bottle and nipple, whereby the fluid outlet closes in a tighter more effective leakproof manner, and wherein said hemispherically convex membrane portion is at least partially recessed below the exterior bulbous surface of the nipple at least in its marginal area connecting it with said thicker portion of the bulbous body portion, thereby forming a smaller scale hemispherical nipple-like fluidpassing portion within the exterior bulbous portion of the nipple.
2. A nipple as defined in claim 1 wherein said membrane is punctured in at least three radially diverse directions such as in a generally Y-shape to form a valve of said improved self-closing character for passage of the nursing fluid when sucked upon during nursing use.
3. A nursing bottle assembly as defined in claim 1 wherein said membrane is punctured by cutting through same diametrically in two directions at 90 apart to form a valve of said self-closing character for passage of the nursing fluid when sucked upon during 5 end Pomon' nursing use.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2063424 *||Dec 1, 1934||Dec 8, 1936||Ferguson Eimer||Nursing nipple|
|US2223179 *||Aug 14, 1937||Nov 26, 1940||Lougheed Victor||Nursing nipple|
|US3161311 *||Jan 30, 1963||Dec 15, 1964||Dunhill International Inc||Disposable nurser|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4993568 *||Sep 26, 1989||Feb 19, 1991||Jex Co., Ltd.||Nipple for nursing bottles|
|US5078287 *||Dec 17, 1990||Jan 7, 1992||Holmes Iii Wendell R||Variable size nursing bottle|
|US5101991 *||Aug 27, 1990||Apr 7, 1992||Jex Company, Limited||Nipple for nursing bottle|
|US5301825 *||Jul 28, 1992||Apr 12, 1994||Luciano Di Scala||Air removal device for use with a nursing bottle|
|US5395322 *||Oct 9, 1991||Mar 7, 1995||Moser; Ramon||Baby feeding nipple and conduit system|
|US5573507 *||Mar 7, 1995||Nov 12, 1996||Moser; Ramon||Multi-use infant-feeding nipple system|
|US5688238 *||Mar 7, 1996||Nov 18, 1997||Ez Drink Baby Products, L.C.||Multi-use infant-feeding nipple system|
|US5699920 *||Aug 21, 1995||Dec 23, 1997||Ida; Frank||Pump nurser for expelling air from disposable liners|
|US6042850 *||Dec 16, 1997||Mar 28, 2000||Ida; Frank||Nursing bottle utilizing air pressure to expel air from disposable liners and methods using same for feeding an infant|
|US6116457 *||Sep 2, 1996||Sep 12, 2000||Haberman; Mandy Nicola||Drinks containers|
|US6126679 *||Apr 12, 1999||Oct 3, 2000||Botts; Lynne Marie||Nipple for use with liquid and medicine dispensing bottle|
|US6138710 *||Dec 10, 1998||Oct 31, 2000||Playtex Products, Inc.||Vent disc for baby bottle and method and apparatus for manufacture thereof|
|US6270519||Aug 1, 2000||Aug 7, 2001||Pedia Med Pharmaceuticals, Inc.||Nipple for use with liquid and medicine dispensing bottle|
|US6365202||Oct 14, 1999||Apr 2, 2002||Frank Ida||Pneumatic squeezable nursing bottle and process of using|
|US6422415||Feb 4, 2000||Jul 23, 2002||Playtex Products, Inc.||Leak-proof cup assembly with flow control element|
|US6994225 *||Aug 5, 2003||Feb 7, 2006||Hakim Nouri E||No-spill drinking products|
|US7147121||Apr 3, 2003||Dec 12, 2006||Abc Development Inc.||Valve for non-spill cup|
|US7163113||Jul 16, 2001||Jan 16, 2007||Playtex Products, Inc.||Vent disc with center knob|
|US7204386||Nov 27, 2001||Apr 17, 2007||Hakim Nouri E||No-spill drinking cup apparatus|
|US7243814||Feb 25, 2002||Jul 17, 2007||Hakim Nouri E||No-spill drinking cup apparatus|
|US7395941 *||Oct 31, 2002||Jul 8, 2008||Suk-Chu Hong||Artificial nipple with reinforcement|
|US7540388 *||May 5, 2005||Jun 2, 2009||Medela Holding Ag||Artificial feeding nipple tip with variable flow construction|
|US7789263||Apr 17, 2007||Sep 7, 2010||Luv N' Care, Ltd.||No-spill drinking cup apparatus|
|US7789264||Jul 9, 2007||Sep 7, 2010||Luv N' Care, Ltd.||No-spill drinking cup apparatus|
|US8016142||Sep 13, 2011||Playtex Products, Inc.||Vent valve assemblies for baby bottles|
|US8100276||May 10, 2005||Jan 24, 2012||Ev (Baby Limited)||Collapsible fluid containers|
|US8567619||Mar 22, 2011||Oct 29, 2013||Playtex Products, Llc||Vent valve assemblies for baby bottles|
|US8695841||Jun 9, 2010||Apr 15, 2014||Luv N' Care, Ltd.||No-spill drinking cup apparatus|
|US8827107||Jan 10, 2012||Sep 9, 2014||Luv N' Care, Ltd.||No-spill drinking cup apparatus|
|US9010568||Sep 7, 2010||Apr 21, 2015||Admar International, Inc.||No-spill drinking cup apparatus|
|US9161886 *||Dec 22, 2008||Oct 20, 2015||Haberman Products Limited||Feeding apparatus|
|US20020156430 *||Apr 19, 2001||Oct 24, 2002||Haarala Brett T.||Catheter slit valves|
|US20030098312 *||Nov 27, 2001||May 29, 2003||Hakim Nouri E.||No-spill drinking cup apparatus|
|US20040164043 *||Aug 5, 2003||Aug 26, 2004||Hakim Nouri E.||No-spill drinking products|
|US20040188373 *||Mar 25, 2003||Sep 30, 2004||Lewis Julie Maureen||Vented, low-drip nursing bottle|
|US20040211787 *||Nov 27, 2001||Oct 28, 2004||Hakim Nouri E.||No-spill drinking cup apparatus|
|US20050072788 *||Sep 29, 2003||Apr 7, 2005||Playtex Products, Inc.||Flow control element for use with leak-proof cup assemblies|
|US20050258123 *||May 5, 2005||Nov 24, 2005||Silver Brian H||Artificial feeding nipple tip|
|US20060060551 *||Oct 31, 2002||Mar 23, 2006||Suk-Chu Hong||Artificial nipple|
|US20070102388 *||Oct 28, 2005||May 10, 2007||Lewis Julie M||Vented, low-drip nursing nipple|
|US20070124943 *||Oct 11, 2006||Jun 7, 2007||Donna Hougland||Method for feeding a child during the child's transition from bottle- to spoon-feeding|
|US20070221604 *||Aug 5, 2003||Sep 27, 2007||Hakim Nouri E||No-Spill Drinking Products|
|US20080061023 *||May 10, 2005||Mar 13, 2008||Moor Timothy N||Collapsible Fluid Containers|
|US20080073306 *||Jan 16, 2007||Mar 27, 2008||Mali Arel||Feeding Bottles|
|US20080173612 *||Dec 20, 2007||Jul 24, 2008||Playtex Products, Inc.||Vent valve assemblies for baby bottles|
|US20080173654 *||Jul 9, 2007||Jul 24, 2008||Hakim Nouri E||No-spill drinking cup apparatus|
|US20100011592 *||Jan 21, 2010||Donna Hougland||Method for feeding a child during the child's transition from bottle- to spoon-feeding|
|US20100270322 *||Oct 28, 2010||Playtex Products, Inc.||Flow control element for use with leak-proof cup assemblies|
|US20100314347 *||Dec 22, 2008||Dec 16, 2010||The Anywayup Company Limited||Feeding apparatus|
|US20110000910 *||Sep 7, 2010||Jan 6, 2011||Hakim Nouri E||No-Spill Drinking Cup Apparatus|
|US20110036852 *||Jun 9, 2010||Feb 17, 2011||Hakim Nouri E||No-spill drinking cup apparatus|
|US20140374372 *||Jul 20, 2011||Dec 25, 2014||MAPA GmbH a corporation||Closure System for a Leak-Proof Bottle for Baby Food|
|USD448242||Jun 12, 2000||Sep 25, 2001||Johnson & Johnson Consumer Companies, Inc.||Trainer cup|
|USD448976||Dec 30, 1999||Oct 9, 2001||Johnson & Johnson Consumer Companies, Inc.||Pinched trainer cup|
|USD450535||May 14, 2001||Nov 20, 2001||Mcdonough Justin E.||Trainer cup|
|USD452116||Jun 6, 2001||Dec 18, 2001||Mcdonough Justin E.||Trainer cup|
|USD452415||Jun 6, 2001||Dec 25, 2001||Mcdonough Justin E.||Pinched trainer cup|
|USD463216||Dec 30, 1999||Sep 24, 2002||Johnson & Johnson Consumer Companies, Inc.||Trainer cup|
|USD667558||Sep 18, 2012||Luv N' Care, Ltd.||Drinking cup cap|
|USD671793||Dec 4, 2012||Luv N' Care, Ltd.||Drinking product|
|USRE43077||Jan 10, 2012||Luv N' Care, Ltd.||No-spill drinking cup apparatus|
|EP0647442A1 *||Oct 5, 1994||Apr 12, 1995||JOHNSON & JOHNSON CONSUMER PRODUCTS, INC.||Nipple for baby bottle|
|EP2407416A1 *||Jul 4, 2011||Jan 18, 2012||Commissariat à l'Énergie Atomique et aux Énergies Alternatives||Method for manufacturing a membrane device retaining a fluid|
|WO1996027362A1 *||Mar 7, 1996||Sep 12, 1996||Ramon Moser||Multi-use infant-feeding nipple system|
|WO2004013001A2 *||Aug 5, 2003||Feb 12, 2004||Hakim Nouri E||No-spill drinking products|
|WO2004013001A3 *||Aug 5, 2003||Apr 7, 2005||Nouri E Hakim||No-spill drinking products|
|WO2005107680A1 *||May 10, 2005||Nov 17, 2005||Elan Vital (Uk) Limited||Collapsible fluid containers|
|International Classification||A61J11/00, A61J9/00|
|Cooperative Classification||A61J11/0015, A61J11/008, A61J9/001|
|European Classification||A61J9/00A, A61J11/00Z2, A61J11/00F2|
|Oct 16, 1980||AS02||Assignment of assignor's interest|
Owner name: JEX CO., LTD., 2-25, ITOYA-CHO, HIGASHI-KU, OSAKA-
Effective date: 19800916
Owner name: YAMAUCHI, AKIRA