Valves and valve actuation – Valve actuator is valve casing or extension thereof – Biased valve
Patent
1997-06-30
1999-07-20
Chambers, A. Michael
Valves and valve actuation
Valve actuator is valve casing or extension thereof
Biased valve
251354, 119 75, A01K 702, F16K 106
Patent
active
059246782
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a drinking device for the watering of animals, and more specifically to a drinking device of the so-called bite-valve type, where the animal puts its mouth over the drinking device, shaped as valve housing, thereby, with some part of its mouth, e.g. the palate, influencing a actuating device by pressing it, said actuating device then opening the water-flow through the valve body and into the mouth of the animal.
An earlier embodiment of such a bite-valve is described in the Swedish laid-open publication No. 7414797-6. It comprises a tube-shaped valve housing, the one end of which valve body being designed to be mounted on a water pipe, directly or indirectly via a connecting piece, and the other end of said bite-valve being suitably shaped for an animal to put its mouth over it. A valve stem stretches axially through the valve body from a valve disc towards the outlet end of the valve body. An actuator, sticking out a bit through a hole in the side of the valve housing, is thus placed so as to be radially movable into the housing, being guided by a tap, which is fixed in the housing, extending into a guiding hole in said actuator. The actuator is coupled to the valve stem, whereby said valve stem, at the pressing of the actuator, is tilted, thereby also tilting the valve disc which opens for the water flow.
This known type of bite-valve for the watering of animals has some advantages, especially in leaving very little or no spillage, and in being easily actuable for the animal when it wants to drink, and, furthermore, in that it cannot be unintentionally actuated by an animal playing with, or scratching itself against the valve. It has, however, also some disadvantages. Thus it comprises many parts, making it, as it were, expensive to manufacture and assemble, and the demands on the precision of the valve in order to insure its safe functioning are very high. The smallest error in tolerance between the tap, the actuator and the hole in the wall of the housing can lead to the jamming of the actuator, whereby the valve will fail to close. There are other places, as well, in and on the valve where dirt and other deposits may cause malfunction with the valve, e.g. in the tap guiding hole in the actuator, and in the actuator coupling of the valve stem. In addition herewith, it is possible for the animal to reach the actuator and bite it, thereby causing damage, in the form of scratches or other types of damage, to said actuator, whereby the jamming of said actuator through the hole in the wall of said valve housing.
The object of the present invention is to solve the above-stated problems. This object is reached through a bite-valve for the watering of animals, according to the appended patent claims, in which claims is also stated that, which in particular characterizes the present invention.
The invention is described in detail in the following by means of reference to the appended drawings, wherein:
FIG. 1 shows a schematic longitudinal cross-section of a bite-valve according to the present invention.
FIG. 2 shows a front view of the bite-valve shown in FIG. 1
FIG. 3 shows a partial cross-section along the line III--III in FIG. 1.
FIG. 4 shows a schematic, partial cross-section through the outlet section of a bite-valve according to the present invention.
FIG. 5 shows a cross-section along the line V--V in FIG. 4.
FIG. 6 shows a schematic longitudinal cross-section similar to FIG. 1 through a further embodiment of said bite-valve according to the present invention.
FIG. 7 shows a front view of the bite-valve shown in FIG. 6.
FIG. 8 shows a partial cross-section along the line VII--VII in FIG. 6.
The embodiments of the water dispensing device or bite-valve 1 according to the present invention as illustrated by the drawings are basically of the same structure as the one disclosed by the Swedish laid-open publication No. 7414797-6, and involves, in practice, a valve housing 2, consisting of two assembled parts, one mounting part 3 and one outlet part 4. The valve-mechanism is co
REFERENCES:
patent: 3669077 (1972-06-01), Spierenburg
patent: 3838664 (1974-10-01), Atchley
patent: 4573433 (1986-03-01), Thompson
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