Fluent material handling – with receiver or receiver coacting mea – Diverse fluid containing pressure filling systems involving... – Filling with exhausting the receiver
Patent
1986-10-08
1988-06-07
Bell, Jr., Houston S.
Fluent material handling, with receiver or receiver coacting mea
Diverse fluid containing pressure filling systems involving...
Filling with exhausting the receiver
141115, 141286, 141302, 141374, B65B 3100
Patent
active
047490101
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to an arrangement for a tapping tube intended for the filling of container-like receptacles, such as bottles, with a liquid, said tapping tube preferably communicating with a metering pump, whereby the liquid in question is intended to flow through the tube and to be interrupted during removal and replacement of the receptacles in question.
Previously disclosed tapping tubes of the kind referred to above often suffer from the disadvantage that dribbling or dripping occur during removal and replacement of the receptacles, even if the flow of liquid is interrupted during this period. What this means is that liquid is spilled outside the receptacle, which poses a particularly serious problem when handling environmentally harmful liquids.
This problem is eliminated with an arrangement in accordance with the invention, which is characterized essentially in that there is connected to the tapping tube a suction channel which discharges in the vicinity of its lower end and which is so arranged as to be actuated in such a way as to provide a suction effect at least for the duration of the aforementioned interruption in the flow of liquid through the tapping tube, for the purpose of preventing dripping or dribbling during removal and replacement of the receptacles.
An illustrative embodiment in accordance with the invention is described below with reference to the accompanying drawings, in which:
FIG. 1 shows a tapping pipe 1 fitted with the arrangement in accordance with the invention in an inactive state, that is to say when filling is not taking place;
FIG. 2 shows the same tapping tube arrangement in an active state, that is to say introduced down into a bottle intended for filling;
FIG. 3 shows the part of the tapping tube arrangement in accordance with FIG. 2 situated adjacent to the neck of the bottle;
FIG. 4 shows the lower part of the tapping tube arrangement in accordance with FIG. 2 introduced down into the bottle; and
FIG. 5 shows the lower part of the tapping tube arrangement in accordance with FIG. 1.
The reference designation 1 is used in FIG. 1 to indicate in its entirety a so-called tapping tube, that is to say a tube through which the liquid which is to be introduced into a container-like receptacle, such as a bottle in the illustrative embodiment shown, is caused to flow, preferably under the control of a metering pump or some other metering arrangement which may be of a previously disclosed kind and may be attached to a line connected to the upper end of the tapping tube. Since the invention is not affected directly by this arrangement, which may, furthermore, be of a previously disclosed kind, there is no reason to describe it in more detail here. The tapping tube 1 exhibits at the bottom an end seal consisting of a body 2, which internally inside the tapping tube exhibits an upper cone-shaped part 2a which widens out in the downward sense and which exhibits an externally threaded part 2b at the bottom. Screwed securely onto the thread of the end sealing body 2 at the bottom is a guide cone 3, which tapers in a downward sense from an upward-facing shoulder 4 which forms the base for a sealing ring 5 of the `O`-ring type. The upward-facing end surface of the guide cone 3 is sealed against a downward-facing shoulder on the end sealing body by means of a further sealing ring 6 of the `O`-ring type. The cone 2a of the end sealing body is terminated at the bottom by a cylindrical part 2c before the flange 2d, which forms the shoulder against which the sealing ring 6 makes contact. The cylindrical part 2c has a diameter which corresponds to the internal diameter of the tapping tube 1, in which case the end sealing body with the cylindrical part 2c is pressed or screwed into the tapping tube 1. The tapping tube exhibits wall openings 7 distributed around its periphery adjacent to the end sealing body. The reference designation 8 is used to identify a sliding sleeve surrounding the lower part of the tapping tube, which internally exhibits a slightly larger diameter than tha
REFERENCES:
patent: 3741263 (1973-06-01), Waxlax
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