Fluent material handling – with receiver or receiver coacting mea – Automatic control of flow cutoff or diversion – Level or overflow responsive
Patent
1995-07-12
1997-05-20
Walczak, David J.
Fluent material handling, with receiver or receiver coacting mea
Automatic control of flow cutoff or diversion
Level or overflow responsive
141331, 141339, 141340, B65B 104
Patent
active
056304528
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention pertains to a funnel with a level indicator for filling liquids into containers safely and including a mount for a measuring rod. The mount passes transversely through the funnel tube, wherein the measuring rod is guided along the axis of the funnel and carries under the mount a piston-like float acting as a lifting element that is movable in the funnel tube. A plurality of passage slots for the liquid to be filled in are located in the wall of the funnel tube, and the movement of the measuring rod is limited in both directions.
BACKGROUND OF THE INVENTION
Such an arrangement has become known from DE-GM 75 29 052. Attention was called there to the problem associated with the filling of larger amounts of solvents, which is linked with the determination of the liquid level or the amount in nontransparent vessels and especially with the prevention of overflow.
In this prior-art solution, the mount passing through the funnel tube consists of a disk, which has a central hole and is located relatively in the lower area of the funnel tube. Under the disk, a measuring rod guided in the disk has a float. The float's buoyancy caused by the liquid filled into the vessel is recognizable from the movement of the measuring rod. In the upper area, this measuring rod has a plate-like indicating means, which signals that the container has been sufficiently filled when a defined level has been reached in relation to the wall of the flare of the funnel.
The problem of this level indicator means is that the passage slots are located above the mount transversely passing through the funnel tube. Liquid can therefore be filled unhindered into the funnel when the float has already reached its topmost position. The liquid then continues to pass as before, into the container through the passage slots. As a consequence of which, the buoyancy of the float causes the entire funnel to be lifted as well because the float comes into contact with the mount passing transversely through the funnel tube from below.
The level position of the measuring rod must therefore be carefully checked during filling in order to prevent the liquid being filled in from overflowing.
The present invention is based on this state of the art according to German Utility Model DE-GM 75 29 052, and has the task of improving the level indicator means such that it is not necessary to resort to the observation of the measuring rod alone, but additional indications for the filling level of the nontransparent container are also obtained, and that the filling especially of nontransparent containers and especially with fuel, is facilitated, in general.
SUMMARY AND OBJECTS OF THE INVENTION
It is an object of the present invention to provide a funnel with a level indicator for filling fluids safely into a non transparent container. The present invention accomplishes this by providing a float inside the funnel tube of a funnel. The float can move inside the funnel tube due to its buoyancy in the fluid in the container. A measuring rod is connected to the float and extends upstream from the float along an axis of the funnel tube, and extends out into the funnel flare of the funnel. A perforated plate mounted at a connection between the funnel tube and the funnel flare surrounds and guides the measuring rod along the axis of the funnel tube. The perforated plate, the funnel tube, and the funnel flare are designed so that the perforated plate is repetitively replaceable in the funnel without damaging or destroying the funnel or requiring special tools. The funnel tube also defines passage slots on the radial surfaces of the funnel tube. These passage slots are positioned downstream of the perforated plate.
The liquid is thus filled from the flare of the funnel through the perforated plate into the funnel tube, from which it can enter the container through the passage slots. When the float according to the present invention has reached its top end position due to the buoyancy of the liquid, it covers the perforations in the p
REFERENCES:
patent: 530690 (1894-12-01), James
patent: 1303890 (1919-05-01), Gustafson
patent: 1333756 (1920-03-01), Heimgartner
patent: 2689651 (1954-09-01), Horsdal
Schmid Dieter
Schmid Oliver
Douglas Steven O.
Walczak David J.
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