Bottles and jars – Nursing bottles and nipples – With temperature responsive indicator
Patent
1996-04-19
1999-01-19
Weaver, Sue A.
Bottles and jars
Nursing bottles and nipples
With temperature responsive indicator
215 111, 220278, A61J 902, A61J 1100, A61J 1104
Patent
active
058605401
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND
1. Field of the Invention
The present invention concerns a teat unit for use when dispensing directly into the mouth from a fluid-containing disposable package of thin sheet-shaped plastics or cardboard material, said teat unit comprising an upwardly extending teat part, an intermediate radial flange and a downwardly extending insertion part, which comprises holding means adapted to hold the teat unit in position during dispensing with the radial flange in external engagement with the container side after the insertion part has broken the package side and has been moved through an exposed opening in it.
2. Description of the Prior Art
DE Offenlegungsschrift 35 35 653 discloses a disposable package which contains a sterilely packaged milk container of powdered milk or liquid milk concentrate, which must be mixed with water before the contents can be consumed. The sealed opening must therefore be broken before the water can be added to the concentrated contents of the package, involving no small danger of the contents being contaminated by bacteria via the water. It is particularly important that the baby milk is so bacteria-free as at all possible when it is consumed by the baby. When heating the contents to the desired temperature, the old-fashioned method must be used, comprising applying a small drop of the milk to the back of the hand, or using a thermometer which is immersed in the milk involving a greatly increased risk of contaminating it with bacteria.
SUMMARY OF THE INVENTION
The object of the present invention is to provide both a teat unit and a disposable package which is particularly easy to use without having to consider the risk of contaminating the contents with bacteria.
The novelty of the invention is that the radial flange of the teat unit is shaped as a cover plate of substantially the same extent as the area of the said package side for the package size with which the teat unit concerned is used, and that the holding means are adapted to hold the opening rim in direct sealing engagement at the downwardly facing side of the cover plate. The advantages of this is that the baby's mouth and the dispensed fluid contents, such as the warm milk, do not contact the exterior side of the package, which may be contaminated with bacteria.
According to the invention the holding means may comprise external threads on the insertion part which terminate in an annular groove directly below the cover plate to receive the package material. This ensures a particularly good retention of the teat unit during dispensing.
Furthermore, according to the invention, the threads may expand conically in an upward direction toward the groove, so that the package material in the opening rim is pressed radially outwardly when the teat unit is screwed on, thereby providing a special seal and retention.
It should be mentioned that the annular groove ensures that it is difficult to screw the teat unit out of the opening again, since the teat unit merely rotates without the threads biting the opening rim, which contributes to providing safe retention during dispensing.
According to the invention, the cover plate may also comprise parts protruding beyond the package side of the associated package and even extending downwardly over the adjoining package sides with a downwardly extending, annular edge.
The invention provides a disposable package which exteriorly comprises a section having a temperature sensitive coating adapted to change its colour during heating. This entails that the fluid contents of the package, such as a milk supply, is so sterile and bacteria-free as at all possible before the milk is to be consumed. The milk supply can be heated in the unopened state of the package, said package being merely placed in a microwave oven or immersed in hot water, and when the temperature sensitive coating has changed to the correct colour it is certain that the desired temperature has been reached, and the sealed opening can be broken, the teat means can be placed in the opening, and the milk can be consume
REFERENCES:
patent: 3253753 (1966-05-01), Barton et al.
patent: 3266910 (1966-08-01), Barnby et al.
patent: 3796337 (1974-03-01), Seunevel
patent: 3838784 (1974-10-01), Barton et al.
patent: 4801007 (1989-01-01), Rule
patent: 4830205 (1989-05-01), Hammond et al.
patent: 4867324 (1989-09-01), Rogosich et al.
patent: 4919983 (1990-04-01), Fremin
patent: 4946040 (1990-08-01), Ipenburg
Baby Pack Holding ApS
Weaver Sue A.
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