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EP1702881B1 - Containerpump - Google Patents

Containerpump Download PDF

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Publication number
EP1702881B1
EP1702881B1 EP06003464A EP06003464A EP1702881B1 EP 1702881 B1 EP1702881 B1 EP 1702881B1 EP 06003464 A EP06003464 A EP 06003464A EP 06003464 A EP06003464 A EP 06003464A EP 1702881 B1 EP1702881 B1 EP 1702881B1
Authority
EP
European Patent Office
Prior art keywords
container
container pump
pump according
opening
closing element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP06003464A
Other languages
German (de)
French (fr)
Other versions
EP1702881A1 (en
Inventor
Horst Krüger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Flux Geraete GmbH
Original Assignee
Flux Geraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Flux Geraete GmbH filed Critical Flux Geraete GmbH
Publication of EP1702881A1 publication Critical patent/EP1702881A1/en
Application granted granted Critical
Publication of EP1702881B1 publication Critical patent/EP1702881B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/06Units comprising pumps and their driving means the pump being electrically driven
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67DDISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06Details or accessories
    • B67D7/58Arrangements of pumps
    • B67D7/68Arrangements of pumps submerged in storage tank or reservoir
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/06Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08Units comprising pumps and their driving means the pump being electrically driven for submerged use

Definitions

  • the invention relates to a container pump according to the preamble of claim 1.
  • container pumps media are pumped from containers.
  • the containers have a closed by a lid opening. After removing the cover, the container pump is inserted into the opening and attached to the edge. With the container pump, the medium is pumped out of the container. If the pumping process is completed and / or the container must be transported, the container pump is released from the edge of the opening, pulled out and placed on the opening of the container again the lid. The handling is obviously cumbersome.
  • a known container pump ( WO 00/75518 A . DE 41 13 638 A1 . DE 81 15 960 U1 . DE 103 36 947 A1 ) is used as a closure element, a disc-shaped lid which is attached to the opening edge of the container.
  • the invention has the object of providing the generic container pump in such a way that with her problem-free pumping of containers is possible.
  • the container pump according to the invention which is preferably provided for conveying urea, is provided with the closure element with which an opening in the container to be evacuated can be closed.
  • the lid of the container opening is removed and the container pump according to the invention is used.
  • Your closure element now closes the container opening, so that a trouble-free pumping is guaranteed.
  • the closure element is designed as a hollow body, which is bounded by the bottom, the lid and the side wall connecting them.
  • the bottom and the lid of the closure element have the opening for the passage of the container pump.
  • the lid is provided with a further opening in which a coupling piece can be attached, with which a dispensing hose is connected.
  • a container pump With a container pump, the contents of a container 1 is pumped out, which may consist of any suitable material, in particular plastic.
  • the container 1 is located in a cage 2, which encloses and supports the container on all sides.
  • the cage 2 consists of individual cage bars 3, which are on the side walls of the container 1 at a distance from each other and are arranged crossing each other.
  • the located on the side walls of the container 1 cage bars 3 are with its lower end attached to a frame-like support 4, on which the container 1 stands up.
  • the container 1 has at its top an opening 5 which is closable by a lid.
  • a container pump 10 In order to pump out the container contents, the lid is removed and inserted into the opening 5, a container pump 10. It has a closure element 6, which closes the opening 5 tight when the container pump 10 is inserted.
  • the closure element 6 is formed as a hollow body ( Fig. 1 ) and has a bottom 7, which is provided with a passage opening 8 for an inner tube 9 of the container pump 10. To the passage opening 8, an outer tube 11 of the container pump 10 connects, which is close to the bottom 12 (FIG. Fig. 4 ) of the container 1 is sufficient.
  • the passage 8 is located immediately adjacent to a side wall 13 of the closure element 6.
  • the bottom 7 of the closure member 6 is spaced by a lid member 14 with respect to, in which an opening 15 is provided, the equiaxial to the passage opening 8 is located.
  • the cover part 14 has a further opening 16 which can receive a connection for a dispensing hose in a manner to be described.
  • the cover part 14 can also be provided with at least one vent opening 17 and a filling opening 46 (FIG. Fig. 3 ) be provided.
  • the container 1 can thus be filled via the opening 5 (after removal of the container pump 10), the opening 16 or the filling opening 46.
  • the opening 5 is defined by a raised edge 18 (FIG. Fig. 6 ) in the top of the container 1 limited.
  • the closure element 6 On its front side, the closure element 6 is fitted with a radially outwardly projecting flange 19.
  • the outer diameter of the flange 19 is equal to the outer diameter of the edge 18 of the container 1.
  • a screw ring 20 is provided which in the exemplary embodiment has approximately Z-shaped cross-section ( Fig. 1 ).
  • the threaded ring 20 is screwed onto the edge 18. With an upper, radially inwardly angled edge 21 of the threaded ring 20 engages the radially outwardly directed flange 19 of the Closing element 6.
  • the flange 19 of the closure element 6 rests on the end face of the edge 18 of the opening 5.
  • the threaded ring 20 is screwed so far on the edge 18, that the sealing ring 22 is elastically compressed, so that a perfect seal of the opening 5 is achieved.
  • a cylindrical jacket 23 of the screw ring 20 is provided on the outside with a profiling 24.
  • the distance between the side wall 13 of the closure element 6 and the cylindrical shell 23 of the screw ring 20 corresponds to the wall thickness of the opening 5 limiting edge 18.
  • the cage 2 and the container 1 are known per se and are therefore not explained in detail.
  • the cage bars 3, 25 have a small thickness, are band-shaped and made of metal.
  • the container 1 is placed with the support 4, which is designed as a circumferential ring on a pad 26, which is also known per se and therefore not explained in detail.
  • the base 26 has a peripheral annular portion 27 slightly recessed with respect to the outer surface 28 of the base ( Fig. 5 ).
  • the cage 2 with the container 1 is placed on the base 26 so that the annular support 4 rests on the circumference of the ring member 27. As a result, the container 1 is reliably secured against lateral displacement.
  • the container 1 is firmly connected to the base 26, which is formed in the manner of a pallet and, for example, with a forklift can be transported.
  • the base 26 with the container 1 sitting on it can be placed on a container 1, if previously a drive motor 32 (FIG. Fig. 1 ) and the dispensing hose located in the lower container 1 container pump 10 has been deducted.
  • a drive motor 32 FIG. Fig. 1
  • the dispensing hose located in the lower container 1 container pump 10 has been deducted.
  • the containers 1 with inserted container pump 10 can be easily stacked.
  • the container pump 10 is formed in a known manner and has the inner tube 9, in which the pump shaft (not shown) is rotatably supported. It carries at the lower end a rotor 29.
  • the inner tube 9 is surrounded over most of its length by the outer tube 11 at a distance. In this way, an annular channel 30 is formed between the inner tube 9 and the outer tube 11, in which the medium contained in the container 1 is conveyed upwards into the closure element 6. For this reason, the diameter of the passage opening 8 is greater than the outer diameter of the inner tube 9.
  • the outer tube 11 has suction openings 31 at the lower end, through which the medium in the container 1 is pumped into the annular channel 30.
  • the pump shaft is provided at the upper end at the level of the flange 21 of the threaded ring 20 with a coupling part 45 which is engaged with a coupling part (not shown) on a motor shaft of the drive motor 32.
  • the drive motor 32 which is advantageously an electric motor, attached to the container pump 10 or deducted from it.
  • the drive motor 32 is secured by a rotation, for example a lock, against rotation during startup. It can also be secured against rotation by a union nut in a known manner.
  • the drive motor 32 is seated on the container pump 10 so that it extends above the top of the container 1 via the threaded ring 20 addition.
  • a sleeve-shaped spacer 33 is provided between the container pump 10 and the drive motor 32, is ensured by the fact that the drive motor 32 with sufficient distance above the flange 21 of the screw ring 20 is located.
  • a bellows 34 is advantageously provided at the lower end of the outer tube 11, which projects beyond the lower end of the outer tube 11.
  • the bellows 34 is more or less compressed axially elastic.
  • the container pump 10 can be easily inserted into the container 1, that the bellows 34 rests on the bottom 12 of the container 1.
  • the suction ports 31 are provided in the side wall of the bellows 34.
  • the outer tube 11 in this case ends at a distance above the suction openings 31.
  • the bellows 34 is open at the bottom, so that the medium can be pumped through this end when the bellows 34 distance from the bottom 12 of the container 1 has.
  • the container pump 10 is attached to the screw ring 20 on the container 1, so that it does not have to be pulled out during transport of the container. Only the drive motor 32 and the dispensing hose are removed.
  • a coupling piece 36 is attached, which can be connected to a mating coupling piece 37.
  • a dispensing hose is connected, via which the medium pumped by the container pump 10 is discharged.
  • the counter-coupling piece 37 has a locking lever 39 pivotable about a horizontal axis 38, with which the counter-coupling piece 37 can be fixedly connected to the coupling piece 36 after pushing.
  • FIG. 1 Two additional coupling and counter coupling pieces are shown, to which a dispensing hose can be connected. While the counter-coupling piece 37 is pushed transversely to the axis of the coupling piece 36, the counter-coupling piece 40 is inserted into the coupling piece 41, which in turn is fixed in the opening 16 of the cover part 14. For locking the counter-coupling piece 40, a locking lever 42 is provided, which is pivotable about a horizontal axis on the counter-coupling piece 40 is stored.
  • the coupling pieces 40, 41 are also known.
  • the opening 5 of the container 1 is initially closed with a lid which is screwed onto the edge 18.
  • the lid is unscrewed and inserted into the opening 5, the container pump 10.
  • the integrally formed with the outer tube 11 closure element 6 of the container pump 10 is located below the intermediate position of the ring seal 22 with its flange 19 on the end face of the edge 18.
  • the container pump 10 is fixed by screwing the screw ring 20 on the edge 18 on the container 1. It is only the drive motor 32 set up on the mounted container pump to pump out the container contents can.
  • the dispensing hose is tightly connected via one of the couplings with the closure element 6.
  • the rotor shaft By turning on the drive motor 32, the rotor shaft is rotated, so that the rotor 29 pumps the medium via the intake ports 31.
  • the medium is conveyed in the annular channel 30 between the inner tube 9 and the outer tube 11 upwards and enters the closure element 6. From here, this medium flows through the respective dispensing hose coupling into the dispensing hose.
  • the container pump 10 After removing the drive motor 32, the container pump 10 is not or only a little above the screw ring 20, so that there is the possibility, in spite of inserted container pump 10, the containers 1, for example, to stack. As it turned out Fig. 6 shows, sitting on the rotor shaft coupling piece 45 is only slightly above the screw ring 20, so that the stackability of the containers 1 is not impaired.
  • the couplings for connecting the dispensing hose can also be removed.
  • a lid can be placed on the closure element 6 for safety reasons, to avoid contamination of the coupling parts, for example, during transport of the container safely. Since the container pump 10 can remain in the container 1 during transport, contamination of the medium in the container is excluded.
  • the container pump 10 may also be equipped without an inner tube.
  • the rotor shaft must then consist of such a material that is resistant to the medium to be pumped.
  • the container pump 10 may be formed in a known manner.
  • a self-priming pump can be used. It is located outside of the container 1 and has a suction hose which, like the dispensing hose, is connected with a coupling piece to the coupling piece fastened in the opening 16.
  • the outer tube 11 serves as a suction tube, through which the medium is pumped to the closure element 16 and from there into the suction hose.
  • the container pump 10 may remain in the container 1 when using the self-priming pump. Then the medium is pumped up in the annular channel 30. However, the inner tube 9 can also be pulled out, so that the medium is pumped through the outer tube 11 in the manner described above.
  • the opening 15 is closed in this case by a lid.
  • a safety device e.g. a seal to secure against unauthorized removal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Closures For Containers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

Container pump (10) has rotor shaft, which can be rotate in an external pipe (11). Rotor (20) which is arranged at the lower end of container pump, can be connected to the drive. The container pump is provided with a sealing element (6) which is at the opposite area of the rotor. An independent claim is also included for the pump.

Description

Die Erfindung betrifft eine Behälterpumpe nach dem Oberbegriff des Anspruches 1.The invention relates to a container pump according to the preamble of claim 1.

Mit solchen Behälterpumpen werden Medien aus Behältnissen gepumpt. Die Behältnisse haben eine durch einen Deckel verschlossene Öffnung. Nach dem Entfernen des Deckels wird die Behälterpumpe in die Öffnung gesteckt und an deren Rand befestigt. Mit der Behälterpumpe wird das Medium aus dem Behältnis herausgepumpt. Ist der Pumpvorgang beendigt und/oder muss das Behältnis transportiert werden, wird die Behälterpumpe vom Rand der Öffnung gelöst, herausgezogen und auf die Öffnung des Behältnisses wieder der Deckel aufgesetzt. Die Handhabung ist ersichtlich umständlich.With such container pumps, media are pumped from containers. The containers have a closed by a lid opening. After removing the cover, the container pump is inserted into the opening and attached to the edge. With the container pump, the medium is pumped out of the container. If the pumping process is completed and / or the container must be transported, the container pump is released from the edge of the opening, pulled out and placed on the opening of the container again the lid. The handling is obviously cumbersome.

Bei einer bekannten Behälterpumpe ( WO 00/75518 A , DE 41 13 638 A1 , DE 81 15 960 U1 , DE 103 36 947 A1 ) wird als Verschlusselement ein scheibenförmiger Deckel verwendet, der am Öffnungsrand des Behälters befestigt wird.In a known container pump ( WO 00/75518 A . DE 41 13 638 A1 . DE 81 15 960 U1 . DE 103 36 947 A1 ) is used as a closure element, a disc-shaped lid which is attached to the opening edge of the container.

Der Erfindung liegt die Aufgabe zugrunde, die gattungsgemäße Behälterpumpe so auszubilden, dass mit ihr ein problemloses Auspumpen von Behältnissen möglich ist.The invention has the object of providing the generic container pump in such a way that with her problem-free pumping of containers is possible.

Diese Aufgabe wird bei der gattungsgemäßen Behälterpumpe erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruches 1 gelöst.This object is achieved in the generic container pump according to the invention with the characterizing features of claim 1.

Die erfindungsgemäße Behälterpumpe, die vorzugsweise zum Fördern von Harnstoff vorgesehen ist, ist mit dem Verschlusselement versehen, mit dem eine Öffnung im auszupumpenden Behältnis verschlossen werden kann. Um ein solches Behältnis auszupumpen, wird der Deckel der Behälteröffnung entfernt und die erfindungsgemäße Behälterpumpe eingesetzt. Ihr Verschlusselement verschließt nunmehr die Behälteröffnung, so dass ein problemloses Auspumpen gewährleistet ist. Es ist auch möglich, die Behälterpumpe bereits beim Befüllen des Behältnisses einzusetzen. Dies ist insbesondere bei sehr empfindlichen Medien von Vorteil. Dann kann die Behälterpumpe zunächst einwandfrei gereinigt werden, so dass eine unerwünschte Kontaminierung der Medien durch an der Behälterpumpe anhaftende Bestandteile, die mit dem Medium reagieren könnten, sicher vermieden wird. Das Verschlusselement ist als Hohlkörper ausgebildet, der durch den Boden, den Deckel und die diese verbindende Seitenwand begrenzt wird. Der Boden und der Deckel des Verschlusselementes haben die Öffnung für den Durchtritt der Behälterpumpe. Zusätzlich ist der Deckel mit einer weiteren Öffnung versehen, in der ein Kupplungsstück befestigt werden kann, mit dem ein Zapfschlauch angeschlossen wird.The container pump according to the invention, which is preferably provided for conveying urea, is provided with the closure element with which an opening in the container to be evacuated can be closed. Around To empty such a container, the lid of the container opening is removed and the container pump according to the invention is used. Your closure element now closes the container opening, so that a trouble-free pumping is guaranteed. It is also possible to use the container pump already when filling the container. This is particularly advantageous for very sensitive media. Then the container pump can be properly cleaned first, so that an undesirable contamination of the media by adhering to the container pump components that could react with the medium, is safely avoided. The closure element is designed as a hollow body, which is bounded by the bottom, the lid and the side wall connecting them. The bottom and the lid of the closure element have the opening for the passage of the container pump. In addition, the lid is provided with a further opening in which a coupling piece can be attached, with which a dispensing hose is connected.

Weitere Merkmale der Erfindung ergeben sich aus den weiteren Ansprüchen, der Beschreibung und den Zeichnungen.Further features of the invention will become apparent from the other claims, the description and the drawings.

Die Erfindung wird anhand einiger in den Zeichnungen dargestellter Ausführungsformen näher erläutert. Es zeigen

Fig. 1
teilweise in Seitenansicht und teilweise im Schnitt eine erfindungsgemäße Behälterpumpe sowie verschiedene Ausführungsbeispiele für Kupplungen zum Anschluß eines Zapfschlauches,
Fig. 2
eine Draufsicht auf die Behälterpumpe gemäß Fig. 1,
Fig. 3
eine Draufsicht auf ein Behältnis mit Deckel,
Fig. 4
den unteren Teil des Behältnisses,
Fig. 5
eine Auflage für das Behältnis,
Fig. 6
den oberen Teil des Behältnisses, teilweise in Ansicht und teilweise im Schnitt.
The invention will be explained in more detail with reference to some embodiments shown in the drawings. Show it
Fig. 1
partly in side view and partly in section a container pump according to the invention and various embodiments of couplings for connecting a dispensing hose,
Fig. 2
a plan view of the container pump according to Fig. 1 .
Fig. 3
a top view of a container with a lid,
Fig. 4
the lower part of the container,
Fig. 5
a support for the container,
Fig. 6
the upper part of the container, partly in view and partly in section.

Mit einer Behälterpumpe wird der Inhalt eines Behältnisses 1 ausgepumpt, der aus jedem geeigneten Material, insbesondere aus Kunststoff, bestehen kann. Das Behältnis 1 befindet sich in einem Käfig 2, der das Behältnis an allen Seiten umschließt und abstützt. Der Käfig 2 besteht aus einzelnen Käfigstäben 3, die an Seitenwänden des Behältnisses 1 mit Abstand voneinander liegen und einander kreuzend angeordnet sind. Die an den Seitenwänden des Behältnisses 1 befindlichen Käfigstäbe 3 sind mit ihrem unteren Ende an einer rahmenartigen Auflage 4 befestigt, auf welcher das Behältnis 1 aufsteht.With a container pump, the contents of a container 1 is pumped out, which may consist of any suitable material, in particular plastic. The container 1 is located in a cage 2, which encloses and supports the container on all sides. The cage 2 consists of individual cage bars 3, which are on the side walls of the container 1 at a distance from each other and are arranged crossing each other. The located on the side walls of the container 1 cage bars 3 are with its lower end attached to a frame-like support 4, on which the container 1 stands up.

Das Behältnis 1 hat an seiner Oberseite eine Öffnung 5, die durch einen Deckel verschließbar ist. Um den Behälterinhalt auszupumpen, wird der Deckel entfernt und in die Öffnung 5 eine Behälterpumpe 10 eingesetzt. Sie hat ein Verschlußelement 6, das bei eingesetzter Behälterpumpe 10 die Öffnung 5 dicht verschließt. Das Verschlußelement 6 ist als Hohlkörper ausgebildet (Fig. 1) und hat einen Boden 7, der mit einer Durchtrittsöffnung 8 für ein Innenrohr 9 der Behälterpumpe 10 versehen ist. An die Durchtrittsöffnung 8 schließt ein Außenrohr 11 der Behälterpumpe 10 an, das bis nahe an den Boden 12 (Fig. 4) des Behältnisses 1 reicht. Durch das Außenrohr 11 ragt das Innenrohr 9 der Behälterpumpe 10. Die Durchtrittsöffnung 8 befindet sich unmittelbar benachbart zu einer Seitenwand 13 des Verschlußelementes 6. Dem Boden 7 des Verschlußelementes 6 liegt mit Abstand ein Deckelteil 14 gegenüber, in dem eine Öffnung 15 vorgesehen ist, die gleichachsig zur Durchtrittsöffnung 8 liegt. Der Deckelteil 14 hat eine weitere Öffnung 16, die in noch zu beschreibender Weise einen Anschluß für einen Zapfschlauch aufnehmen kann. Der Deckelteil 14 kann außerdem mit mindestens einer Entlüftungsöffnung 17 und einer Befüllöffnung 46 (Fig. 3) versehen sein. Das Behältnis 1 kann somit über die Öffnung 5 (nach Herausnehmen der Behälterpumpe 10), die Öffnung 16 oder die Befüllöffnung 46 gefüllt werden.The container 1 has at its top an opening 5 which is closable by a lid. In order to pump out the container contents, the lid is removed and inserted into the opening 5, a container pump 10. It has a closure element 6, which closes the opening 5 tight when the container pump 10 is inserted. The closure element 6 is formed as a hollow body ( Fig. 1 ) and has a bottom 7, which is provided with a passage opening 8 for an inner tube 9 of the container pump 10. To the passage opening 8, an outer tube 11 of the container pump 10 connects, which is close to the bottom 12 (FIG. Fig. 4 ) of the container 1 is sufficient. The passage 8 is located immediately adjacent to a side wall 13 of the closure element 6. The bottom 7 of the closure member 6 is spaced by a lid member 14 with respect to, in which an opening 15 is provided, the equiaxial to the passage opening 8 is located. The cover part 14 has a further opening 16 which can receive a connection for a dispensing hose in a manner to be described. The cover part 14 can also be provided with at least one vent opening 17 and a filling opening 46 (FIG. Fig. 3 ) be provided. The container 1 can thus be filled via the opening 5 (after removal of the container pump 10), the opening 16 or the filling opening 46.

Die Öffnung 5 wird durch einen hochgestellten Rand 18 (Fig. 6) in der Oberseite des Behältnisses 1 begrenzt. Auf seine Stirnseite wird das Verschlußelement 6 mit einem radial nach außen ragenden Flansch 19 aufgesetzt. Der Außendurchmesser des Flansches 19 ist gleich dem Außendurchmesser des Randes 18 des Behältnisses 1. Um das Verschlußelement 6 zu sichern, ist ein Schraubring 20 vorgesehen, der im Ausführungsbeispiel etwa Z-förmigen Querschnitt hat (Fig. 1). Der Schraubring 20 wird auf den Rand 18 geschraubt. Mit einem oberen, radial nach innen abgewinkelten Rand 21 übergreift der Schraubring 20 den radial nach außen gerichteten Flansch 19 des Verschlußelementes 6. Unter Zwischenlage eines Dichtringes 22 liegt der Flansch 19 des Verschlußelementes 6 auf der Stirnseite des Randes 18 der Öffnung 5 auf. Der Schraubring 20 wird so weit auf den Rand 18 geschraubt, daß der Dichtring 22 elastisch zusammengedrückt wird, so daß eine einwandfreie Abdichtung der Öffnung 5 erreicht wird. Um den Schraubvorgang zu erleichtern, ist ein zylindrischer Mantel 23 des Schraubringes 20 außenseitig mit einer Profilierung 24 versehen. Der Abstand zwischen der Seitenwand 13 des Verschlußelementes 6 und dem zylindrischen Mantel 23 des Schraubringes 20 entspricht der Wanddicke des die Öffnung 5 begrenzenden Randes 18. Mit dem Schraubring 20 läßt sich das Verschlußelement 6, das vorteilhaft einstückig ausgebildet ist, einfach montieren und demontieren.The opening 5 is defined by a raised edge 18 (FIG. Fig. 6 ) in the top of the container 1 limited. On its front side, the closure element 6 is fitted with a radially outwardly projecting flange 19. The outer diameter of the flange 19 is equal to the outer diameter of the edge 18 of the container 1. In order to secure the closure element 6, a screw ring 20 is provided which in the exemplary embodiment has approximately Z-shaped cross-section ( Fig. 1 ). The threaded ring 20 is screwed onto the edge 18. With an upper, radially inwardly angled edge 21 of the threaded ring 20 engages the radially outwardly directed flange 19 of the Closing element 6. With the interposition of a sealing ring 22, the flange 19 of the closure element 6 rests on the end face of the edge 18 of the opening 5. The threaded ring 20 is screwed so far on the edge 18, that the sealing ring 22 is elastically compressed, so that a perfect seal of the opening 5 is achieved. In order to facilitate the screwing, a cylindrical jacket 23 of the screw ring 20 is provided on the outside with a profiling 24. The distance between the side wall 13 of the closure element 6 and the cylindrical shell 23 of the screw ring 20 corresponds to the wall thickness of the opening 5 limiting edge 18. With the screw ring 20, the closure element 6, which is advantageously integrally formed, easy to assemble and disassemble.

Wie Fig. 3 beispielhaft zeigt, übergreift ein rautenförmig ausgebildeter Käfigstab 25 die Oberseite des Behältnisses 1. Zur Stabilisierung der Behälterpumpe 10 sind am hochgestellten Rand 18 des Behältnisses 1 die Enden von Haltestäben 47 befestigt, die radial zur Öffnung 5 verlaufen und mit ihren anderen Enden am rautenförmig verlaufenden Käfigstab 25 befestigt sind.As Fig. 3 To stabilize the container pump 10 are fixed to the raised edge 18 of the container 1, the ends of support rods 47 which extend radially to the opening 5 and with its other ends on the diamond-shaped cage rod 25 are attached.

Der Käfig 2 sowie das Behältnis 1 sind an sich bekannt und werden darum auch nicht näher erläutert. Durch den Käfig 2 wird ein Ausbeulen des Behältnisses 1 in gefülltem Zustand verhindert. Die Käfigstäbe 3, 25 haben geringe Dicke, sind bandförmig ausgebildet und bestehen aus Metall. Das Behältnis 1 wird mit der Auflage 4, die als umlaufender Ring ausgebildet ist, auf eine Unterlage 26 aufgesetzt, die ebenfalls an sich bekannt ist und darum auch nicht näher erläutert wird. Die Unterlage 26 hat einen umlaufenden Ringteil 27, der in bezug auf die Außenseite 28 der Unterlage geringfügig zurücksteht (Fig. 5). Der Käfig 2 mit dem Behältnis 1 wird so auf die Unterlage 26 aufgesetzt, daß die ringförmige Auflage 4 am Umfang des Ringteiles 27 anliegt. Dadurch ist das Behältnis 1 gegen Querverschieben zuverlässig gesichert. Das Behältnis 1 wird fest mit der Unterlage 26 verbunden, die nach Art einer Palette ausgebildet und beispielsweise mit einem Gabelstapler transportiert werden kann. Die Unterlage 26 mit dem auf ihr sitzenden Behältnis 1 kann auf ein Behältnis 1 aufgesetzt werden, wenn zuvor ein Antriebsmotor 32 (Fig. 1) und der Zapfschlauch der im unteren Behältnis 1 befindlichen Behälterpumpe 10 abgezogen worden ist. Somit lassen sich die Behältnisse 1 mit eingesetzter Behälterpumpe 10 problemlos stapeln.The cage 2 and the container 1 are known per se and are therefore not explained in detail. By the cage 2 bulging of the container 1 is prevented in the filled state. The cage bars 3, 25 have a small thickness, are band-shaped and made of metal. The container 1 is placed with the support 4, which is designed as a circumferential ring on a pad 26, which is also known per se and therefore not explained in detail. The base 26 has a peripheral annular portion 27 slightly recessed with respect to the outer surface 28 of the base ( Fig. 5 ). The cage 2 with the container 1 is placed on the base 26 so that the annular support 4 rests on the circumference of the ring member 27. As a result, the container 1 is reliably secured against lateral displacement. The container 1 is firmly connected to the base 26, which is formed in the manner of a pallet and, for example, with a forklift can be transported. The base 26 with the container 1 sitting on it can be placed on a container 1, if previously a drive motor 32 (FIG. Fig. 1 ) and the dispensing hose located in the lower container 1 container pump 10 has been deducted. Thus, the containers 1 with inserted container pump 10 can be easily stacked.

Die Behälterpumpe 10 ist in bekannter Weise ausgebildet und hat das Innenrohr 9, in dem die (nicht dargestellte) Pumpenwelle drehbar abgestützt ist. Sie trägt am unteren Ende einen Rotor 29. Das Innenrohr 9 wird über den größten Teil seiner Länge vom Außenrohr 11 mit Abstand umgeben. Auf diese Weise wird zwischen dem Innenrohr 9 und dem Außenrohr 11 ein Ringkanal 30 gebildet, in dem das im Behältnis 1 befindliche Medium nach oben in das Verschlußelement 6 gefördert wird. Aus diesem Grunde ist der Durchmesser der Durchtrittsöffnung 8 größer als der Außendurchmesser des Innenrohres 9. Das Außenrohr 11 weist am unteren Ende Ansaugöffnungen 31 auf, durch die das Medium im Behältnis 1 in den Ringkanal 30 gepumpt wird. Die Pumpenwelle ist am oberen Ende in Höhe des Flansches 21 des Schraubringes 20 mit einem Kupplungsteil 45 versehen, das mit einem (nicht dargestellten) Kupplungsteil auf einer Motorwelle des Antriebsmotors 32 in Eingriff ist. Über diese Kupplung kann der Antriebsmotor 32, der vorteilhaft ein Elektromotor ist, auf die Behälterpumpe 10 aufgesteckt oder von ihm abgezogen werden. Der Antriebsmotor 32 ist über einen Verdrehschutz, zum Beispiel eine Arretierung, gegen Verdrehen beim Anlaufen gesichert. Er kann auch durch eine Überwurfmutter in bekannter Weise verdrehgesichert werden. Der Antriebsmotor 32 sitzt so auf der Behälterpumpe 10, daß er sich oberhalb der Oberseite des Behältnisses 1 über den Schraubring 20 hinaus erstreckt. Vorteilhaft ist zwischen der Behälterpumpe 10 und dem Antriebsmotor 32 ein hülsenförmiger Abstandhalter 33 vorgesehen, durch den gewährleistet ist, daß der Antriebsmotor 32 mit ausreichendem Abstand oberhalb des Flansches 21 des Schraubringes 20 liegt.The container pump 10 is formed in a known manner and has the inner tube 9, in which the pump shaft (not shown) is rotatably supported. It carries at the lower end a rotor 29. The inner tube 9 is surrounded over most of its length by the outer tube 11 at a distance. In this way, an annular channel 30 is formed between the inner tube 9 and the outer tube 11, in which the medium contained in the container 1 is conveyed upwards into the closure element 6. For this reason, the diameter of the passage opening 8 is greater than the outer diameter of the inner tube 9. The outer tube 11 has suction openings 31 at the lower end, through which the medium in the container 1 is pumped into the annular channel 30. The pump shaft is provided at the upper end at the level of the flange 21 of the threaded ring 20 with a coupling part 45 which is engaged with a coupling part (not shown) on a motor shaft of the drive motor 32. About this coupling, the drive motor 32, which is advantageously an electric motor, attached to the container pump 10 or deducted from it. The drive motor 32 is secured by a rotation, for example a lock, against rotation during startup. It can also be secured against rotation by a union nut in a known manner. The drive motor 32 is seated on the container pump 10 so that it extends above the top of the container 1 via the threaded ring 20 addition. Advantageously, a sleeve-shaped spacer 33 is provided between the container pump 10 and the drive motor 32, is ensured by the fact that the drive motor 32 with sufficient distance above the flange 21 of the screw ring 20 is located.

Um einen Längentoleranzausgleich der Behälterpumpe 10 zu erreichen, ist am unteren Ende des Außenrohres 11 vorteilhaft ein Faltenbalg 34 vorgesehen, der über das untere Ende des Außenrohres 11 vorsteht. Je nach Höhentoleranz des Behältnisses 1 wird der Faltenbalg 34 mehr oder weniger weit axial elastisch zusammengedrückt. Auf diese Weise läßt sich die Behälterpumpe 10 einfach so in das Behältnis 1 einsetzen, daß der Faltenbalg 34 auf dem Boden 12 des Behältnisses 1 aufliegt. In diesem Falle sind die Ansaugöffnungen 31 in der Seitenwand des Faltenbalges 34 vorgesehen. Das Außenrohr 11 endet hierbei mit Abstand oberhalb der Ansaugöffnungen 31. Der Faltenbalg 34 ist nach unten offen, so daß das Medium durch dieses Ende gepumpt werden kann, wenn der Faltenbalg 34 Abstand vom Boden 12 des Behältnisses 1 hat.In order to achieve a length tolerance compensation of the container pump 10, a bellows 34 is advantageously provided at the lower end of the outer tube 11, which projects beyond the lower end of the outer tube 11. Depending on the height tolerance of the container 1, the bellows 34 is more or less compressed axially elastic. In this way, the container pump 10 can be easily inserted into the container 1, that the bellows 34 rests on the bottom 12 of the container 1. In this case, the suction ports 31 are provided in the side wall of the bellows 34. The outer tube 11 in this case ends at a distance above the suction openings 31. The bellows 34 is open at the bottom, so that the medium can be pumped through this end when the bellows 34 distance from the bottom 12 of the container 1 has.

Die Behälterpumpe 10 wird mit dem Schraubring 20 am Behältnis 1 befestigt, so daß sie beim Transport des Behältnisses nicht herausgezogen werden muß. Lediglich der Antriebsmotor 32 und der Zapfschlauch werden abgezogen.The container pump 10 is attached to the screw ring 20 on the container 1, so that it does not have to be pulled out during transport of the container. Only the drive motor 32 and the dispensing hose are removed.

In der Öffnung 16 des Deckelteiles 14 wird ein Kupplungsstück 36 befestigt, das mit einem Gegenkupplungsstück 37 verbunden werden kann. An das Gegenkupplungsstück wird ein Zapfschlauch angeschlossen, über den das von der Behälterpumpe 10 gepumpte Medium ausgetragen wird. Das Gegenkupplungsstück 37 hat einen um eine horizontale Achse 38 schwenkbaren Verschlußhebel 39, mit dem das Gegenkupplungsstück 37 nach dem Aufschieben fest mit dem Kupplungsstück 36 verbunden werden kann. Die beiden Kupplungsstücke 36, 37 sind bekannt und werden darum auch nicht näher erläutert.In the opening 16 of the cover part 14, a coupling piece 36 is attached, which can be connected to a mating coupling piece 37. To the counter-coupling piece a dispensing hose is connected, via which the medium pumped by the container pump 10 is discharged. The counter-coupling piece 37 has a locking lever 39 pivotable about a horizontal axis 38, with which the counter-coupling piece 37 can be fixedly connected to the coupling piece 36 after pushing. The two coupling pieces 36, 37 are known and are therefore not explained in detail.

In Fig. 1 sind zwei weitere Kupplungs- und Gegenkupplungsstücke dargestellt, an die ein Zapfschlauch angeschlossen werden kann. Während das Gegenkupplungsstück 37 quer zur Achse des Kupplungsstückes 36 aufgeschoben wird, wird das Gegenkupplungsstück 40 in das Kupplungsstück 41 gesteckt, das seinerseits in der Öffnung 16 des Deckelteiles 14 befestigt ist. Zur Arretierung des Gegenkupplungsstückes 40 ist ein Verriegelungshebel 42 vorgesehen, der um eine horizontale Achse schwenkbar am Gegenkupplungsstück 40 gelagert ist. Die Kupplungsstücke 40, 41 sind ebenfalls bekannt.In Fig. 1 Two additional coupling and counter coupling pieces are shown, to which a dispensing hose can be connected. While the counter-coupling piece 37 is pushed transversely to the axis of the coupling piece 36, the counter-coupling piece 40 is inserted into the coupling piece 41, which in turn is fixed in the opening 16 of the cover part 14. For locking the counter-coupling piece 40, a locking lever 42 is provided, which is pivotable about a horizontal axis on the counter-coupling piece 40 is stored. The coupling pieces 40, 41 are also known.

Es ist schließlich auch möglich, in der Öffnung 16 des Behältnisses 1 ein Kupplungsstück 43 zu befestigen, auf das mit einer Überwurfmutter 48 ein Gegenkupplungsstück 44 geschraubt werden kann, an dem das Ende des Zapfschlauches befestigt ist.Finally, it is also possible to fasten in the opening 16 of the container 1 a coupling piece 43 onto which a coupling nut 44 can be screwed with a coupling nut 44 to which the end of the dispensing hose is fastened.

Wird das Gegenkupplungsstück 44 mit dem Zapfschlauch abgeschraubt, wird auf das Kupplungsstück 43 als Deckel eine geschlossene Überwurfmutter 49 geschraubt.If the counter-coupling piece 44 is unscrewed with the dispensing hose, a closed union nut 49 is screwed onto the coupling piece 43 as a cover.

Außer den beispielhaft beschriebenen Kupplungen können auch andere bekannte Kupplungssysteme zum Anschluß des Zapfschlauches verwendet werden.In addition to the couplings described as an example, other known coupling systems can be used to connect the dispensing hose.

Die Öffnung 5 des Behältnisses 1 ist zunächst mit einem Deckel geschlossen, der auf den Rand 18 geschraubt ist. Um den Behälterinhalt auspumpen zu können, wird der Deckel abgeschraubt und in die Öffnung 5 die Behälterpumpe 10 eingesetzt. Das einstückig mit dem Außenrohr 11 ausgebildete Verschlußelement 6 der Behälterpumpe 10 liegt unter der Zwischenlage der Ringdichtung 22 mit seinem Flansch 19 auf der Stirnseite des Randes 18 auf. Anschließend wird die Behälterpumpe 10 durch Aufschrauben des Schraubringes 20 auf den Rand 18 am Behältnis 1 befestigt. Es ist nur noch der Antriebsmotor 32 auf die montierte Behälterpumpe aufzusetzen, um den Behälterinhalt auspumpen zu können. Der Zapfschlauch ist über eine der Kupplungen mit dem Verschlußelement 6 dicht verbunden. Durch Einschalten des Antriebsmotors 32 wird die Rotorwelle gedreht, so daß der Rotor 29 das Medium über die Ansaugöffnungen 31 pumpt. Das Medium wird im Ringkanal 30 zwischen dem Innenrohr 9 und dem Außenrohr 11 nach oben gefördert und gelangt in das Verschlußelement 6. Von hier aus strömt dieses Medium über die jeweilige Zapfschlauchkupplung in den Zapfschlauch.The opening 5 of the container 1 is initially closed with a lid which is screwed onto the edge 18. In order to pump out the container contents, the lid is unscrewed and inserted into the opening 5, the container pump 10. The integrally formed with the outer tube 11 closure element 6 of the container pump 10 is located below the intermediate position of the ring seal 22 with its flange 19 on the end face of the edge 18. Subsequently, the container pump 10 is fixed by screwing the screw ring 20 on the edge 18 on the container 1. It is only the drive motor 32 set up on the mounted container pump to pump out the container contents can. The dispensing hose is tightly connected via one of the couplings with the closure element 6. By turning on the drive motor 32, the rotor shaft is rotated, so that the rotor 29 pumps the medium via the intake ports 31. The medium is conveyed in the annular channel 30 between the inner tube 9 and the outer tube 11 upwards and enters the closure element 6. From here, this medium flows through the respective dispensing hose coupling into the dispensing hose.

Nach dem Abnehmen des Antriebsmotors 32 steht die Behälterpumpe 10 nicht oder nur wenig über den Schraubring 20 vor, so daß die Möglichkeit besteht, trotz eingesetzter Behälterpumpe 10 die Behältnisse 1 beispielsweise zu stapeln. Wie sich aus Fig. 6 ergibt, steht das auf der Rotorwelle sitzende Kupplungsstück 45 nur wenig über den Schraubring 20 vor, so daß die Stapelbarkeit der Behältnisse 1 nicht beeinträchtigt ist. Die Kupplungen zum Anschluß des Zapfschlauches können ebenfalls abgenommen werden.After removing the drive motor 32, the container pump 10 is not or only a little above the screw ring 20, so that there is the possibility, in spite of inserted container pump 10, the containers 1, for example, to stack. As it turned out Fig. 6 shows, sitting on the rotor shaft coupling piece 45 is only slightly above the screw ring 20, so that the stackability of the containers 1 is not impaired. The couplings for connecting the dispensing hose can also be removed.

Nach dem Abnehmen des Antriebsmotors 32 kann aus Sicherheitsgründen ein Deckel auf das Verschlußelement 6 gesetzt werden, um ein Verschmutzen der Kupplungsteile beispielsweise beim Transport des Behältnisses sicher zu vermeiden. Da beim Transport die Behälterpumpe 10 im Behältnis 1 bleiben kann, ist eine Verschmutzung des im Behältnis befindlichen Mediums ausgeschlossen.After removing the drive motor 32, a lid can be placed on the closure element 6 for safety reasons, to avoid contamination of the coupling parts, for example, during transport of the container safely. Since the container pump 10 can remain in the container 1 during transport, contamination of the medium in the container is excluded.

Die Behälterpumpe 10 kann auch ohne Innenrohr ausgestattet sein. Die Rotorwelle muß dann aus einem solchen Material bestehen, das gegen das zu pumpende Medium beständig ist.The container pump 10 may also be equipped without an inner tube. The rotor shaft must then consist of such a material that is resistant to the medium to be pumped.

Im übrigen kann die Behälterpumpe 10 in bekannter Weise ausgebildet sein.Moreover, the container pump 10 may be formed in a known manner.

Anstelle der Behälterpumpe 10 kann auch eine selbstansaugende Pumpe eingesetzt werden. Sie befindet sich außerhalb des Behältnisses 1 und hat einen Saugschlauch, der ähnlich wie der Zapfschlauch mit einem Kupplungsstück an das in der Öffnung 16 befestigte Kupplungsstück angeschlossen wird. Das Außenrohr 11 dient als Saugrohr, durch das das Medium zum Verschlußelement 16 und von dort in den Saugschlauch gepumpt wird.Instead of the container pump 10, a self-priming pump can be used. It is located outside of the container 1 and has a suction hose which, like the dispensing hose, is connected with a coupling piece to the coupling piece fastened in the opening 16. The outer tube 11 serves as a suction tube, through which the medium is pumped to the closure element 16 and from there into the suction hose.

Die Behälterpumpe 10 kann bei Einsatz der selbstansaugenden Pumpe im Behältnis 1 bleiben. Dann wird das Medium im Ringkanal 30 nach oben gepumpt. Das Innenrohr 9 kann aber auch herausgezogen werden, so daß das Medium in der oben beschriebenen Weise durch das Außenrohr 11 gepumpt wird. Die Öffnung 15 wird in diesem Fall durch einen Deckel geschlossen.The container pump 10 may remain in the container 1 when using the self-priming pump. Then the medium is pumped up in the annular channel 30. However, the inner tube 9 can also be pulled out, so that the medium is pumped through the outer tube 11 in the manner described above. The opening 15 is closed in this case by a lid.

Es ist möglich, die Behälterpumpe 10 am Behältnis 1 durch eine Sicherung, z.B. eine Verplombung, gegen unbefugtes Entfernen zu sichern.It is possible to change the container pump 10 on the container 1 by a safety device, e.g. a seal to secure against unauthorized removal.

Claims (12)

  1. A container pump having an outer pipe (11) in which there is rotatably arranged a rotor shaft which bears a rotor (29) at its lower end and to which a drive (32) can be attached, and having a closing element (6) provided at the end remote from the rotor (29), characterised in that the closing element (6) is in the form of a hollow body with a base (7) and a cover (14) connected to one another by a lateral wall (13), in that the cover (14) and the base (7) each have a respective opening (8, 15) for the passage of the container pump, and in that the cover (14) has another opening (16) in which a coupling piece (36, 41, 43) can be secured for the attachment of a delivery hose.
  2. A container pump according to claim 1, characterised in that the closing element (6) has an outer flange (19) provided at the upper edge of the lateral wall (13).
  3. A container pump according to claim 2, characterised in that the flange (19) runs over the circumference of the closing element (6).
  4. A container pump according to claim 2 or 3, characterised in that a threaded ring (20) engaging over the flange (19) of the closing element (6) is located on the latter.
  5. A container pump according to claim 4, characterised in that a lateral wall (23) of the threaded ring (20) is at a distance from the lateral wall (13) of the closing element (6).
  6. A container pump according to any one of claims 1 to 5, characterised in that the outer pipe (11) is attached to the base (7) of the closing element (6).
  7. A container pump according to any one of claims 1 to 6, characterised in that a coupling piece (45) for attachment of the drive (32) is provided at the upper end of the rotor shaft, level with the lid (14) of the closing element (6).
  8. A container pump according to any one of claims 1 to 7, characterised in that the rotor shaft is surrounded by an inner pipe (9).
  9. A container pump according to claim 8, characterised in that the inner pipe (9) together with the outer pipe (11) bounds an annular channel (30), opening into the closing element (6), for the medium to be conveyed.
  10. A container pump according to any one of claims 1 to 9, characterised in that the outer pipe (11) is provided with a length compensation element (34) at its lower end.
  11. A container pump according to claim 10, characterised in that the length compensation element (34) is in the form of a bellows yielding resiliently in the axial direction of the outer pipe (11).
  12. A container pump according to any one of claims 1 to 11, characterised in that the closing element (6) is provided with at least one filling opening (46) and/or ventilation opening (17).
EP06003464A 2005-03-17 2006-02-21 Containerpump Not-in-force EP1702881B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005013684A DE102005013684A1 (en) 2005-03-17 2005-03-17 Container pump, preferably for conveying urea

Publications (2)

Publication Number Publication Date
EP1702881A1 EP1702881A1 (en) 2006-09-20
EP1702881B1 true EP1702881B1 (en) 2008-04-23

Family

ID=36423529

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06003464A Not-in-force EP1702881B1 (en) 2005-03-17 2006-02-21 Containerpump

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Country Link
EP (1) EP1702881B1 (en)
AT (1) ATE393116T1 (en)
DE (2) DE102005013684A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007013162U1 (en) 2007-09-19 2009-02-12 Horn Gmbh & Co. Kg Pump assembly for pumping liquids

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936221A (en) * 1974-09-16 1976-02-03 Goulds Pumps, Inc. Vertical cantilever pump
DE8115960U1 (en) * 1981-05-29 1981-09-24 Lederle Gmbh Pumpen Und Maschinenfabrik, 7800 Freiburg "ENGINE PUMP UNIT"
DE4113638C2 (en) * 1991-04-26 1993-11-25 Rapid Maschinenfabrik Gmbh Liquid pump for small parts cleaners
US5577895A (en) * 1995-02-24 1996-11-26 Fe Petro Inc. Submerged pump unit having a variable length pipe assembly
US5810208A (en) * 1996-07-12 1998-09-22 Precision Dispenser, Inc. Electrically powered pumping system
JP4237438B2 (en) * 1999-06-07 2009-03-11 ハムボーシー コーエスエー ズバネホイ アクティーゼルスカブ Pumping device for pumping liquid products from tanks or containers
DE10256792B4 (en) * 2002-08-12 2005-01-13 Allweiler Ag rotary pump
DE10307498A1 (en) * 2003-02-21 2004-09-02 Ksb Aktiengesellschaft Vibration-optimized tubular casing pump

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DE102005013684A1 (en) 2006-09-21
DE502006000670D1 (en) 2008-06-05
ATE393116T1 (en) 2008-05-15
EP1702881A1 (en) 2006-09-20

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