US2907485A - Baby nursing and feeding bottle - Google Patents

Description

Oct. 6, 1959 R. K. LUNDEN BABY NURSING AND FEEDING BOTTLE Filed June 9, 1958 Robert K. Lunden INVENTOR.

BY y 4u/#wy M0515" listet-Staf@ Patent O y 2,901,485 BABY NURSING AND FEEDnvG BoTrLE Raben K. Landen, Bound Brook, NJ. Application June 9, 195s, serial Nb. 740,735 4 claims. (ci. 215-1'1) The present invention relates to new and useful improvements in baby bottles and has for its primary object to provide, in a manner as hereinafterset forth, a device of this character which maybe used for feeding either liquid or semi-solid foods, thus permitting the continued use of the bottle as the infant grows into childhood.'

Another very important object of the invention is to provide a combination baby bottle of the aforementioned character comprising novel` means fonjpreventing the intake of air with the uid, thereby avoiding colic.

Still another important object of the present invention is to provide a combination baby bottle of the character described which includes unique means for ejecting the food. A

Other objects of the invention are to provide a baby nursing and feeding bottle of the character set forth which will be comparatively 'simple in construction, strong, durable, compact, of light weight, which may be easily cleaned and maintained in a highly sanitary condition at all times, and which may be manufactured at low cost.

These together with other objects and advantages which 'will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout,` and in which:

Figure 1 is a View in vertical section through a baby bottle constructed in accordance with the present invention;

Figure 2 is a View in horizontal section, taken substantially upon the line 2-2 of Figure l;

Figure 3 is a horizontal sectional view, taken substantially on the line 3-3 of Figure 1; and

Figure 4 is a perspective view of the feeding nipple.

Referring now to the drawing in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a substantially cylindrical container 5 of suitable rigid material. The container 5, which may also be of any desired dimensions, is open at both ends. The container 5 comprises, on its upper end, a reduced, externally threaded neck 6 which terminates in an inturned flange 7.

Suspended in the container 5 is a removable bag or sack 8 of rubber or other suitable resilient material for the reception of the milk or food, as indicated at 9. The bag S comprises a reduced, open top portion 10 which passes upwardly through the neck 6 of the container 5 and terminates in an outturned flange 11 which rests on the flange 7. The ange 11 receives thereon the base flange 12 of a nursing nipple 13 having perforations 14 in the tip thereof. The assembly is secured by a retaining cap or ring 15 which is threaded on the neck 6 of the container 5, said cap or ring including an inturned ange 16 which is engaged on the nipple flange 12. As shown to advantage in Figure 1 of the drawing, the walls of the bag 8 progressively decrease in thickness from the top to the bottom of said bag.

Removably mounted on the lower end of the container 5 is a check valve 17 for the entrance of air. The valve 17 includes a flexible disk 18 having therein a centrally located opening 19. Mounted on the disk 18 is a relatively thin exible disk 20 having in its outer portion a plurality of perforatons 21 which, it 'will be noted, are

i out of alignment with the opening 19.

. Mounted beneath the valve 17 is a removable air pump 22 of the collapsible bulb type. The pump 22 includes an out-turned attaching flange 23 which is; yengaged beneath the disk 18 of the valve 17. Theassemf bly is secured through the medium of aretaining cap or ring 24 which is screwed on the externally threaded lower end portion 25 of the container 5, said cap or vring comprising an inturned flange 26 which is engaged beneath the ange 23 of the pump 22.L `The pump 22 further includes an air intake 27.

In Figure 4 of the drawing, reference character 28 designates a feeding nipple which may be mounted on the bottle in lieu of the nipple 13. The feeding nipple 28 comprises in its tipf'a single, relatively large discharge opening 29. In other respects the nipple 28 is substantially similar to the nursing nipple 13. t l. It is thought that the use of the device 'will be readily apparent from a consideration of the foregoing. Briefly, when milk, for instance, is to be fed to the infant, the bag 8 is filled therewith, as indicated at 9, and the nipple 13 is secured in position. As the uid is consumed, the bag 8 contracts or collapses from the bottom up and air from the atmosphere is dralwn into the lower portion of the container 5 beneath said bag. As shown in broken lines in Figure 1 of the drawing, the relatively thin, flexible upper disk 20 is raised out of contact with the central portion of the disk 18, permitting the air to flow through the opening 19, between the disks and through the perforations 21 into the container, This air is trapped in the container 5 by the check valve 17. In this manner the fluid 9 is prevented from dropping back in the bag 8 and the nipple 13 is kept substantially full thereof. The construction and arrangement is such that the infant may nurse with the bottle in any position. Also, no air can become mixed with the milk or other fluid to be drawn therewith into the mouth. If desired, the pump 22 may be removed when lthe infant is to nurse from the bottle. When the child is to be given semi-solid food, the bag 8 is filled to the desired level therewith and the nipple 28 is mounted on the bottle in lieu of the nipple 13. The pump 22 is then actuated for forcing air runder pressure into the container 5 past the check valve 17. The air under pressure in the container 5 collapses the bag 8 and forces the food therefrom through the single opening 29 in the nipple 28 in an obvious manner. The device may quickly be completely disassembled for cleaning orother purposes by simply unscrewing the retaining caps or rings 15 and 24. The walls of the bag 8, progressively decreasing in thickness from the top to the bottom thereof, cause said bag to contract or collapse from the bottom up. y

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling Within the scope of the invention as claimed.

What is claimed as new is as follows:

l. A baby bottle of the character described comprising: a container open at its upper end, a collapsible bag, for the reception of food, suspended in said container from said upper end thereof, a nipple on the container communicating with the bag, and a check` valve on the lower portion of the container for admitting air thereto and trapping said air therein, the walls of said bag progre'ssively decreasing in thickness from the top to the bottom thereof for causing said bag to collapse from the bottom up as the food is removed therefrom.

2, A baby bottle comprising: a substantially cylindrical container having open upper and lower ends, a collapsible bag suspended in the container from the upper endthereof, a nipple onthe container communicating with the bag, said bag 'for the reception of food, and la check valve on the lower end of the container for admitting airthereto beneath the ,bag and for trapping the air in said container, said check valve including a lower disk having a centralV opening therein and an upper disk havinga multiplicity of perforations therein outwardly of the opening, and a ring threaded on the lower end yporofthe container for securing the check valve thereon,

said ring including anA inturned liange engaged beneath the lower disk;

3. A baby bottle of the character described comprising: a substantially cylindrical container open at both ends, a collapsible bag for the reception of food, suspended in the container from one end thereof, a nipple on one end of said container communicating with the bagrfor receiving the food therefrom, a pump on the other end of the container for injecting air under pressure thereinto, and a check valve interposed between the pump and the container for trapping the. air in said container.

4. A ,baby bottle of the character described comprist 4 I 'l ing: a substantially cylindrical container open at both ends, a collapsible bag, for the reception of food, suspended in the container from one end thereof, a nipple mounted on said one end of the container and communicating with the bag for receiving the food therefrom, ya check valve on the other end of the container for admitting air thereto and for trapping said air therein, said check valve including a exible upper disk having a plurality of perforations in its outer portion for the pasf References Cited in the tile of this patent UNITED STATES PATENTS 921,387 Etter May 11, 1909 2,846,103 Maxwell Aug. 5, 1958 l FOREIGN PATENTS s 1,058,610 France Nov. 4, 1953v

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