US2303997A - Feeding bottle - Google Patents

Description

J. H. S. HOGG FEEDING BOTTLE Dec. 1, 1942.

Filed Nov. 16, 1939 r9 7ORNEX Patented Dec. 1, 1942 UNiTED snares harem time FEEDING BOTTLE John Herbert Scott Hogg, Settlement of Empire, Ontario, Canada Application November 16, 1939, Serial No. 304,810

7 Claims.

My invention relates to a feeding bottle.

The usual or standard feeding bottle has a number of disadvantages. For instance, it has to be tilted from time to time to the proper feeding position so that milk, rather than air, will feed to the infants mouth; if the bottle is not suitably tilted, air, and not milk, or air and milk, will be sucked and swallowed, instead of milk only, which, as is well known, is a frequent cause of baby discomfort, the infant suffering from stomach pains.

The object of the invention is to provide a feeding bottle which IWlll eliminate the disadvantages of the usual or standard bottle, as aforesaid.

More specifically, an object of the invention is to so design a feeding bottle that no air, or substantially no air, will accumulate in the portion of the bottle next to the nipple as the milk is being consumed.

Another specific object of the invention is to provide in a feeding bottle a piston forming the effective bottom of the bottle, which piston gradually slides in the bottle as the milk is being consumed.

Another object of the invention is to so design the feeding bottle that the piston will have little tendency to jam or freeze in the bottle.

Another object of the invention is to so design the bottle that the piston will be moved upwardly as the milk is being consumed, simply by the action of the infant as it sucks, and will not recede when suction is removed.

In the drawing there is shown a feeding bottle made in accordance with my invention, the bottle being shown partly in section and partly in elevation, and partly broken away.

Referring now by numerals to the drawing, II] is the body portion of the bottle, having a neck portion II suitably formed to removably receive a nipple I2. The body portion I is open at the bottom, and the side or vertical wall formed with a spiral recess or groove as at I3. I4 is the piston, which is formed or sized to slide vertically on the inside face or surface of the wall of the body portion, the wall and piston being sufficiently smooth or finished to provide a sliding fit between wall and piston, in the manner that a piston slides in a cylinder. The upper face of the piston is formed to correspond as closely as possible with the upper part of the body portion, so that very little milk or feeding mixture will be left within the bottle, and very little will be wasted, when the piston has reached its uppermost position.

i6 is the bottom of the bottle, being provided with a spiral thread Il adapted to engage and thread in the spiral groove I3 of the body portion, tothe end that the bottom I6 may be applied to, and removed from, the body portion. That the piston I4 may better slide and be guided through the body portion without tendency to bind or freeze, and be easily removed from the bottle when the bottom I6 has been removed, it is preferably provided with a depending plunger or rod I5, which is made to slide in a tubular sleeve or extension I8, depending from the bottom I6. This sleeve will also prevent the accidental displacement of the piston, if made long enough to cover or shield the piston at all times. The sleeve is preferably closed at the bottom except for an air vent I9 which enables the piston rod to move easily and freely within the sleeve I8.

That the piston I4 may rise in the body portion as when the infant is sucking, but not lower in the body portion when suction is removed, there is provided a one-way valve means indicated at'20, and which, as shown, is located within or forms an integral part of the bottom I6. In the form shown, there is provided a chamber 2! having oppositely-disposed reduced inlet and outlet passages or ports 22 and 22A, respectively, extending through the opposite parallel faces of the bottom. From a point preferably mid-length of the chamber II is a by-pass 23 leading to and through the upper face of the bottom. Within the chamber 2| is a valve in the form of a ball 24. As will be obvious, the ball operates to either open or close the inlet, according as to whether the infant is or is not sucking, and in the latter case, according to the position or tilt of the bottle.

When in the position shown, the ball will prevent any air lodged in the bottle between the bottom I6 and the piston I4 from escaping. When the ball is in a position next to the outlet 22A, air will be admitted into the inlet 22, the chamber ZI and by-pass 23, thus enabling the piston to rise in the body portion. It is proposed to make the component parts of the bottle, other than the nipple, of glass, although, conceivably, it might be possible to use other materials from which to make these component parts.

The operation of the bottle will be easily understood. When it is desired to refill the bottle, the bottom It is removed by unscrewing the same from the body portion, and the piston I4, now free to slide out of the body portion, is also removed. The nipple I2 is also removed from the neck II. As the thread I1 is formed exteriorly of the edge of the bottom, and the groove I3 is formed inwardly in the wall of the bottle to accommodate the thread, the piston can be easily removed. These component parts of the bottle may now be washed and sterilized. When assembling the parts together, the piston is applied in position on the bottom l6, and the bottom, with piston I 4, applied to the body portion by screwing or threading the bottom to the body portion. The piston now rests upon or engagesthe upper face of the bottom, as shown.

The feeding mixture or milk is next poured into the body portion through the neck II, and the nipple applied in position. The bottle is now ready to be used. As the infant sucks and consumes the milk or mixture, the piston l4 rises in the body portion l0 until it engages the upper part of the body portion, when the milk will have been substantially all consumed.

I claim:

1. A feeding bottle having a neck portion at the upper end to receive the nipple and open at the lower end, a removable member closing the lower end of said bottle, a piston slidable in said bottle and lying between said neck portion and said member, and valve means associated with said member permitting of said piston to rise toward said neck portion by suction applied to the nipple but not to lower when suction is removed.

2. A feeding bottle having a. neck portion at the upper end to receive the nipple and open at the lower end, a removable member closing the lower end of said bottle, a piston slidable in said bottle and lying between said neck portion and said member, and valve means associated with said member permitting of said piston to rise toward said neck portion by suction applied to the nipple but not to lower when suction is removed, unless said member is in process of being removed from said bottle.

3. A feeding bottle having a neck portion at the upper end to receive the nipple and open at the lower end, a removable member closing the lower end of said bottle, a piston slidable in said bottle between said member and said neck portion, and valve means associated with said member permitting of said piston to rise toward said neck portion by suction applied to the nipple but not to lower when suction is removed.

4. A feeding bottle having a neck. portion at the upper end to receive the nipple and open at the lower end, a removable member closing the lower end of said bottle, a piston slidable in said bottle between said member and said neck portion, and valve means associated with said member permitting of said piston to rise toward said neck portion by suction applied to the nipple but not to lower when suction is removed unless said member is in process of being removed from said bottle.

5. In a feeding bottle as set forth in claim 1, said piston having a depending plunger co-operating with said member to guide said piston in its sliding movement within said bottle.

6'. In a feeding bottle as set forth. in claim 1, said piston having a depending plunger co-operating with said member to guide said piston in its sliding movement within said bottle and said member having a depending sleeve within which said plunger is slidably guided.

7. In a feeding bottle as set forth in claim 1, said piston having a depending plunger co-operating with said member to guide said piston in its sliding movement within said bottle and said member having a'depending sleeve within which said plunger is slidably guided, said sleeve being of a length to substantially encompass said plunger irrespective of the position of said piston.

JOHN HERBERT SCOTT HOGG.

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