US1543427A - Nipple - Google Patents

Description

June 23, 1925.

C. K. DENNEY NIPPLE Filed A1193. 6, 1924' Patented June 23, 1925.

UNITED STATES CARROLL K. DEI T1\TEY, OF NFFJV YGRK, N. Y.

' NIPPLE.

Application filed August 6, 1924. Serial No. 730,357.

To a whom it may concern:

Be it known that I, CARROLL K. DENNEY, a citizen of the United States, and resident of New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Nipple, of which the following is a specification.

This invent-ion relates to a nipple for nursing bottles.

One of the difiiculties encountered in the use of rubber nipples for nursing bottles has been occasioned by their becoming loose and hence being readily pulled off the bottle. Such occurrence is not desirable to have happen while feeding an infant. The nipple usually becomes loosened by the necessity of inserting the fingers therein to stretch it over the lip of the bottle. The greatest points of tension are around the lower rim of the bottle lip and the head at the bottom of the nipple in the conventional nipple. As the milk in the bottle may be shaken up in placing the nipple on it will frequently moisten the neck and lip of the bottle causing a wet surface which permits rubber to slip very easily and as the surface under the principal tension in the usual form of nipple is limited'in area a slight permanent stretching of the walls of the nipple in conjunction with the wetting of the bottle so reduces the adhesion of the nipple to'the bottle as to frequently make it only nominal. A number of efforts have been made to overcome this objection and to overcome the stretching of the rubber over the bottle neck and its subsequent loss of elasticity and failure to return to the original size. In most cases the attempts to prevent the nipple from being easily pulled off have given rise to another difficulty, that is, they have made it harder to put the nipple on the bottle.

One of the objects of this invention is to provide a nipple that is easily put on a bottle and easily removable when desired but one that cannot be readily pulled off when in use. Still another object of this invention is to provide a nipple that will retain these qualities as long as it is used. A further object of this invention is to provide a nipple that can be manufactured at small cost.

Another object is to provide a nipple which when. put on its proper position will remain in that position and not slip either down or up on the neck of the bottle even though thenippl'e has been used before.

Figure l is a view in longitudinal section of a nipple embodying the principles of my invention.

Figure 2 is a view in longitudinal section of a nipple embodying the principles of my invention attached to a bottle.

Figure 3 is'a view in longitudinal section of the nipple about to be attached to the bottle.

In carrying out my invention, I propose to provide a rubber nipple having side walls of uniform thickness with an annular preformed portion 2.

Portion 2 conforms to readily receive lip 3 of bottle l. Below portion 2, I provide collar 5. lVithin collar 5 is suction ring 6 adjacent the bottom of the nipple. The bottom of the nipple 7 is of slightly outwardly curving form to allow the fingers to more readily roll back the sidewalls when detaching the nipple. A seating ring 8 of slightly less internal diameter than that of collar 5 facilitates the rolling of collar 5 onto the lip 3 of bottle a when putting the nipple on the bottle. It also functions to prevent the nipple from being improperly placed on the bottle and from slipping down out of position.

The construction above set forth furnishes a greater surface in uniform tension. The preform'ing of the sidewalls of the nip ple and their uniform thickness distributes the tension over a greater portion of the nipple and does not concentrate it next to the bottom edge of the bottle lip and at the head but distributes it over the collar and conforming ring 2 uniformly.

lVithin the nipple near the small outlet hole I provide a ring 8 to prevent collapsing of the nipple when in use. Such construction furnishes a greater surface in tension to hold the nipple to the bottle and also distributes the tension over a greater portion.

of the nipple and does not concentrate itnext to the bottom edge of the bottle lip and at the head but distributes it over the collar and conforming ring 2.

lVhen it is desired to utilize nipple 1 after it is sterilized, turned up edge 7 is rolled back until the rolled up portion includes the conforming ring 2 (see Figure 3). It will be noted that above conforming ring 2 is an additional curved surface 9 which forms the base of the nipple 1 when the nipple is to be placed on lip 3 of bottle 4:. The curved sur face 9 is of slightly less internal diameter than the internal diameter of collar 5 in order to facilitate the rolling back of the nipple thereon and also in order that it may form a base when the collar is rolled up thereon to rest on the lip of the bottle and permit rolling the collar 5 and conforming ring 2 on to the neck of the bottle. The rolled up section is then pushed down over bottle 4 as shown in Figure 2. To remove the nipple, bead 7 is rolled by the friction of the fingers to the position shown in Figure 3. The function of section ring 6 is two fold as it facilitates the rolling of the collar of the nipple, for without suction ring 6, collar 5 will tend to fold back on itself and not roll, but, the suction ring 6 holding the collar 5 to bottle 4 enables the rolling operation to be started. In addition suction ring (5, assists collar 5, bead 7, and conforming ring 2, to prevent withdrawal of nipple 1 from the bottle.

The design of nipple l to conform to the shape of the bottle not only functions to secure a firm grip thereon but also tends to increase the life of the nipple. As the usual stretching of the ordinary nipple over the sharp edge of the lip of the bottle and the consequent stretching of the walls of the I nipple at one point over the edge of the bottle causes a breakdown or tearing of the nipple walls. The increased surface in ten sion together with conforming internal surfaces of the nipple prevents the nipple from slipping down on the bottle as sometimes occurs in the conventional form of nipple.

What I claim is 2- A nipple having a body portion of uni form thickness throughout, said body portion having a conforming ring therein to fit the lip of a nursing bottle, a collar below said conforming ring adapted to lit the neck of said bottle a vacuum ring formed in said collar portion said collar portion terminating in a bevelled edge to permit of rolling back of said collar conforming ring portion of said body and a ring formed in said body portion above said conforming ring to form a base for said nipple when said nipple is placed upon said bottle to be rolled into position.

Signed at New York, in the county of New York and State of New York, this 5th day of August A. D., 1924.

CARROLL K. DENNEY.

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