Bottles and jars – Nursing bottles and nipples – With valve for liquid
Patent
1997-04-09
1999-01-19
Weaver, Sue A.
Bottles and jars
Nursing bottles and nipples
With valve for liquid
215 111, A01K 900, A61J 1100
Patent
active
058605410
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to improvements in teats of the type used in the feeding of animals particularly the rearing of young animals such as calves.
DESCRIPTION OF THE RELATED ART
In my New Zealand Patent Specification 247058 there is described and claimed a teat for the feeding of young animals, this teat having proved in use to be extremely effective as an animal suckling on the teat can over a given period of time obtain a greater volume of feed than with conventional teats. I have now developed an improvement to that teat to make it even easier and more effective for an animal to obtain maximum flow of feed with a minimum of effort.
SUMMARY OF THE INVENTION
Broadly, the present invention provides a teat comprising a hollow body made of a resilient material, said body having an inlet end and an outlet end, said outlet end including one or more slits through the wall of the body characterised in the said at least one slit does not extend into that area of the wall of the body which forms the extremity of the outlet end, said inlet end having a bung inserted therein, said bung incorporating a valve, said valve in its relaxed state being open to permit flow from the inlet end of the body to the outlet end to occur. Preferably the bung and valve are moulded as a single unit from an elastomeric plastics material.
In the preferred form of the invention the valve includes a flap or flaps which are located within the hollow interior of the body and which close the valve immediately a pressure differential occurs between the hollow interior and that part of the bung which opens to the exterior of the teat body.
BRIEF DESCRIPTION OF THE DRAWINGS
In the following more detailed description of the invention reference will be made to the accompanying drawings in which:
FIG. 1 is a cross-sectional illustration of the teat disclosed in my New Zealand Patent Specification 247058,
FIG. 2 is a perspective view of a bung for insertion into the inlet end of the teat,
FIG. 3 is a cross-sectional illustration of a second form of the valved bung inserted in the end of the teat,
FIG. 4 is a cross-sectional illustration of a valve arrangement for incorporation as an integral part of the bung, the valve being shown in the closed position,
FIG. 5 is a view similar to FIG. 3 but showing the valve in an opened position,
FIG. 6 is a perspective view of a further embodiment of the bung and valve arrangement according to the invention,
FIG. 7 is an end view of the valve of FIG. 6,
FIG. 8 is a cross-sectional view taken on line A--A of FIG. 6,
FIG. 9 is a side elevation view of the bung and valve arrangement of FIG. 6,
FIG. 10 is a further side elevation view of the bung and valve arrangement of FIG. 6,
FIG. 11 is a cross-sectional view taken on line B--B of FIG. 6, and
FIG. 12 is a perspective view of a tool part used in the molding of the valve and bung arrangement of FIG. 6.
The content of my New Zealand Patent Specification 247058 is incorporated herein by way of specific reference.
As shown in FIG. 1 the teat 10 has an inlet end 11 and an outlet end 12. The inlet end 11 is provided with a radially disposed flange 13 adjacent which is a groove 14. This groove 14 is defined by flange 13 and an end wall surface of an outwardly flared body portion 15.
A bung 16 is inserted in the inlet end 11, this bung having a plurality of annular ribs 16a which engage in correspondingly spaced and shaped grooves in flange 13. Other means of retaining the bung in the inlet end can be employed as will be appreciated by those skilled in the art. For example bung 16 could be held in place by a suitable adhesive or a bonding method suited to the plastic materials used for the bung and teat.
The outlet end has a nipple 17 with a forwardly facing curved end wall 18 and a side wall 19 which merges into the curved wall portion defining the outlet end 12. A plurality of slits 20 are provided for the outflow of feed, these slits extending alongside wall 19 from generally the point where it merges into the curved end wall p
REFERENCES:
patent: 1270693 (1918-06-01), Caldwell
patent: 2143661 (1939-01-01), Schrader
patent: 2219604 (1940-10-01), Trotter
patent: 2223179 (1940-11-01), Lougheed
patent: 2350215 (1944-05-01), Christensen
patent: 2597483 (1952-05-01), Head, Sr.
patent: 2607319 (1952-08-01), Shappee
patent: 2628591 (1953-02-01), Coyner
patent: 2688326 (1954-09-01), Lerman
patent: 2697414 (1954-12-01), Coyner
patent: 2708421 (1955-05-01), Jauch
patent: 2747573 (1956-05-01), Schaich
patent: 2800107 (1957-07-01), Niggeler
patent: 2831484 (1958-04-01), Garner
patent: 2960088 (1960-11-01), Witz
patent: 3424157 (1969-01-01), Di Paolo
patent: 4633814 (1987-01-01), Eastman et al.
patent: 4915242 (1990-04-01), Marte
patent: 4969564 (1990-11-01), Cohen et al.
patent: 5072842 (1991-12-01), White
patent: 5638769 (1997-06-01), McIntyre et al.
McIntyre Robert Dymock
Whitfield Robin
McIntyre Robert Dymock
Weaver Sue A.
LandOfFree
Teat with relaxed inlet valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Teat with relaxed inlet valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Teat with relaxed inlet valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1240860