Fluid handling – Systems – System with plural openings – one a gas vent or access opening
Patent
1997-01-27
1999-09-07
Rivell, John
Fluid handling
Systems
System with plural openings, one a gas vent or access opening
137572, 137587, 2511496, F16K 2400
Patent
active
059471549
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND AND SUMMARY OF THE INVENTION
The invention concerns a container for liquids, which is equipped with an outlet, to which a discharge hose having an interior hose space can be connected, and where the outlet is located in a container wall, which encloses an interior space of the container, and where in the region of the outlet a through-passage leading to the interior space of the container is disposed.
In addition to this, the invention concerns a container for liquids, which is equipped with an outlet, which opens into an interior space of the container in a region of the lower extension of a container wall in a vertically downward direction, and where the outlet can be closed off by means of a closing element.
During the handling of liquids which are stored in containers, the problem arises, that when the liquid is poured out of the container, the volume inside the container, which had previously been occupied by the liquid, must now be replaced by air from the area outside the container. When the liquid is poured out in the usual manner, the air enters the container in the form of bubbles as a result of the negative pressure, which is generated inside the container as a consequence of the pouring process. This results in an erratic pouring behavior. A further problem can be observed when a discharge hose is attached to the container. If in the use of such a discharge hose a closing element is disposed in the region where the hose enters the container, the volume of liquid, which is present inside the hose, runs out of the hose at a slow rate and air bubbles enter the hose in a direction opposite to that of the direction of discharge. Such a discharge of the hose takes a relatively long time, and furthermore, as a result of the erratic discharge behavior caused by the air bubbles, a contamination of the environment by spilled liquid can be expected.
When containers are emptied, which can be closed off by means of a closing element in the region of their lower vertical extension, for example, when objects containing oil are emptied, a problem arises due to the fact that the liquid is discharged immediately after the closing element is opened. For example, if used oil is discharged from the engine of a vehicle in which the closing element is constructed in the form of an oil drain plug, which is located in the region of the oil pan of the vehicle, the oil is discharged immediately after the oil drain plug is removed. Due to the threads of the oil drain plug the time of the complete separation of the oil drain plug from the oil pan is not exactly predictable, so that nearly every time when oil is discharged contamination occurs. A multiplicity of accidents was, moreover, caused by the fact that the oil drain plug had not been reconnected sufficiently tightly to the oil pan after the oil change process had been terminated.
In order to make it easier to empty the container while it is in an ergonomically favorable position, it is proposed that the outlet be disposed in a vertically lower region of the container.
It will be made easier to substantially empty the container if the two-position valve is disposed in a vertically lower region of the interior of the container.
An embodiment, which can be easily produced mechanically, consists in providing a tube for the actuation of the two-position valve, which tube is extended upward in an essentially vertical direction and which is made in the form of an aerating line, which contains an actuating handle in the region of its extension facing away from the two-position valve.
In order to avoid the generation of a negative pressure within the container, it is proposed that in the region where the aeration line extends through a head portion of the container, a compensating valve be placed in order to aerate the interior space of the container.
A simple design of a device for aerating the interior space of the container can be devised in such a manner that the compensating valve is made from the aerating line and a tube sleeve, which envelops the aerating
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Rivell John
Schoenfeld Meredith H.
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