WO1997016876A2 - Busbar channel for busway - Google Patents

Busbar channel for busway Download PDF

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Publication number
WO1997016876A2
WO1997016876A2 PCT/DE1996/002017 DE9602017W WO9716876A2 WO 1997016876 A2 WO1997016876 A2 WO 1997016876A2 DE 9602017 W DE9602017 W DE 9602017W WO 9716876 A2 WO9716876 A2 WO 9716876A2
Authority
WO
WIPO (PCT)
Prior art keywords
rail channel
profile
housing halves
housing
double
Prior art date
Application number
PCT/DE1996/002017
Other languages
German (de)
French (fr)
Other versions
WO1997016876A3 (en
Inventor
Georg Von Hasselt
Original Assignee
Klöckner-Moeller 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 Klöckner-Moeller Gmbh filed Critical Klöckner-Moeller Gmbh
Priority to EP96945525A priority Critical patent/EP0858686A2/en
Priority to AU15900/97A priority patent/AU1590097A/en
Publication of WO1997016876A2 publication Critical patent/WO1997016876A2/en
Publication of WO1997016876A3 publication Critical patent/WO1997016876A3/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G5/00—Installations of bus-bars
    • H02G5/06—Totally-enclosed installations, e.g. in metal casings
    • H02G5/08—Connection boxes therefor

Definitions

  • the invention relates to a rail channel according to the preamble of claim 1.
  • Rail distributors which are also known as line distributors, consist of a rail channel with busbars fastened therein, outgoing points and outgoing boxes and serve to distribute electrical energy, particularly in factories and buildings, in which consumers often have to be replaced.
  • the rail channel consists of two housing halves, the upper one being rolled onto the lower one, i.e. the upper half of the housing is bent around the lower half of the housing in the edge areas.
  • depressions are pressed into the material on the side to increase torsional rigidity.
  • a higher sheet thickness can be selected to increase the torsional strength, but this is associated with higher costs.
  • This rail distributor has the advantage that it can be built relatively flat, for example in comparison to the embodiment shown in DE-U 66 07 93.
  • the object of the invention is to develop a rail channel according to the preamble of claim 1 in such a cost-effective manner that on the one hand an improvement in terms of torsional rigidity is achieved and on the other hand an improvement in terms of the fastening options of or on parts and in relation to the PE -Connection of both housing halves is achieved.
  • the invention increases the rigidity, in particular the torsional rigidity, in a cost-effective manner.
  • the invention also allows the required sheet thickness to be reduced.
  • FIG. 2 is an exploded view of the rail channel shown in FIG. 1, 3 is an illustration of the double-T profile,
  • Fig. 7 is a sectional view of the insulating profile
  • FIG. 1 shows the rail channel 1, in which the busbars 2 are embedded in an insulating profile 3.
  • a series of aligned rivet connections 5 are arranged on the sides, which together with the housing halves give the rail channel its particular rigidity with respect to twisting or sagging.
  • One of the housing halves consists of a double-T profile 6, while the other housing half consists of a hat profile 7, as can be seen in more detail in FIGS. 3 and 4.
  • the rail channel 1 is particularly rigid.
  • the double-T profile 6 is bent from a sheet metal section, the edges additionally being provided with a flange 8.
  • the other half of the housing shaped as a U-profile 7, is arranged flush between the side sections 9.
  • the hat profile has a base section 10, a wall section 11 arranged perpendicularly thereto, a fastening section 12 again arranged parallel to the base section 10 for fastening to the rivet connections 5 and a reinforcing section 13 bent perpendicularly in the direction of the fastening section 10.
  • the hat profile also as Called the lower shell, the shape forms a trough in which the insulating profile 3 is embedded.
  • the double-T profile 6 has openings for insulating parts 17 with plug openings 16 and slide gates.
  • the openings 18 are somewhat larger than the insulating parts 17, which creates a window 20, so that a PE connection between the tap-off unit and the box unit is possible despite the coated upper shell (double-T profile 6).
  • the window is preferably arranged between the departure point and the side section 9 in the region of the fastening section 12.
  • the grounding contact of the tap-off box engages the bare metal location of the fastening section 12.
  • the flanged rivet connects the electrically painted upper shell to the bare metal lower shell (hat profile 7) for the purpose of earthing through heavy grouting during riveting.
  • the PE connection of the rail boxes or single rail channels 1 is through a connecting flange 19 and bare lower shell reached.
  • Flanging riveting makes it possible to easily add accessories, e.g. to be fastened with self-tapping screws. With the flanged riveting, the rail channel can be screwed directly to the spacer bushings.
  • the rivet connection 5 achieves a high degree of IP protection. Two rivet connections 5 are arranged between the departure points.
  • FIG. 8a shows the upper and lower shells in the area of the fastening section 12.
  • the insertion hole marked with 21 can be omitted if a sufficiently pointed punch is used which is pressed from above. This results in the opening shown in FIG. 8b with the flange edges 22, 23.
  • the flange edges 22, 23 are widened and pressed flat by a second punch 24 pressing from below, so that the shape shown in FIGS. 8c and 6 is produced.

Landscapes

  • Machines For Laying And Maintaining Railways (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Catching Or Destruction (AREA)
  • Multi-Conductor Connections (AREA)
  • Distribution Board (AREA)
  • Connection Of Plates (AREA)

Abstract

The busbar channel for busways comprises two sheet metal housing halves and busbars arranged inside the busbar channel flat on one level and insulated on the busbar channel floor; both housing halves have regions destined to come into flat surface contact with one another. The aim is to develop the proposed busbar channel inexpensively in order to improve both deformation rigidity and the possibilities of securing the channel to other parts, and to improve the PE connection of the two housing halves. This is achieved as follows: one housing half forming the upper shell comprises a double-T-shaped section and the other housing half forming a bottom shell comprises a cap section. The housing halves are in addition connected by rivet joins.

Description

Schienenkanal für SchienenverteilerRail channel for rail distributors
Die Erfindung betrifft einen Schienenkanal nach dem Oberbegriff des Anspruches 1.The invention relates to a rail channel according to the preamble of claim 1.
Schienenverteiler, die auch als Linienverteiler bekannt sind, bestehen aus einem Schienenkanal mit darin befestigten Stromschienen, Abgangstellen und Abgangskästen und dienen zur Verteilung elektrischer Energie, insbesondere in Fabrikhallen und Gebäuden in den Verbraucher oft gewechselt werden müssen.Rail distributors, which are also known as line distributors, consist of a rail channel with busbars fastened therein, outgoing points and outgoing boxes and serve to distribute electrical energy, particularly in factories and buildings, in which consumers often have to be replaced.
Ein derartiger Schienenverteiler mit einem Schienenkanal aus Blech ist in der EP 0335756 Bl in den Figuren 7 und 8 gezeigt.Such a rail distributor with a rail channel made of sheet metal is shown in EP 0335756 B1 in FIGS. 7 and 8.
Der Schienenkanal besteht aus zwei Gehäusehälften, wobei die obere auf die untere aufrolliert ist, d.h. die obere Gehäusehälfte ist in den Kantenbereichen um die unteren Gehäusehäfte gebogen. Zusätzlich sind seitlich Vertiefungen in das Material gedrückt, damit die Verwindungssteifigkeit erhöht wird. Zur Erhöhung der Verwindungsstefigkeit kann zwar eine höhere Blechdicke gewählt werden, was aber mit höheren Kosten verbunden ist.The rail channel consists of two housing halves, the upper one being rolled onto the lower one, i.e. the upper half of the housing is bent around the lower half of the housing in the edge areas. In addition, depressions are pressed into the material on the side to increase torsional rigidity. A higher sheet thickness can be selected to increase the torsional strength, but this is associated with higher costs.
Dieser Schienenverteiler hat den Vorteil, daß er relativ flach gebaut werden kann, z.B im Vergleich zu dem in der DE-U 66 07 93 gezeigten Ausführungsform.This rail distributor has the advantage that it can be built relatively flat, for example in comparison to the embodiment shown in DE-U 66 07 93.
Zur Befestigung des Schienekanals oder bei der Befestigung von Teilen an dem Schienenkanal bieten sich nur wenig Befestigungsmöglichkeiten, ohne daß die IP-Schutzart beeinträchtigt wird, z.B. durch Bohrungen. Ferner ist es nur mit zusätzlichem Aufwand möglich, eine Verbesserung der leitenden Verbindung zwischen den Gehäusehälften zu erreichen.There are only a few fastening options for fastening the rail channel or when fastening parts to the rail channel without the IP protection class being impaired, for example by drilling. Furthermore, it is only possible with additional effort To achieve improvement in the conductive connection between the housing halves.
Aufgabe der Erfindung ist es, einen Schienenkanal nach dem Oberbegriff des Anspruches 1 derart auf kostengünstige Art weiterzubilden, daß einerseits eine Verbesserung in Bezug auf die Verwindungssteifigkeit erreicht wird und andererseits eine Verbesserung in bezug auf die Befestigungsmöglichkeiten von oder an Teilen und in bezug auf die PE-Verbindung beider Gehäusehälften erreicht wird.The object of the invention is to develop a rail channel according to the preamble of claim 1 in such a cost-effective manner that on the one hand an improvement in terms of torsional rigidity is achieved and on the other hand an improvement in terms of the fastening options of or on parts and in relation to the PE -Connection of both housing halves is achieved.
Die Aufgabe der Erfindung wird durch die kennzeichnenden Merkmale des Anspruches 1 gelöst, während in den Unteransprüchen besonders vorteilhafte Weiterbildungen der Erfindung gekennzeichnet sind.The object of the invention is achieved by the characterizing features of claim 1, while particularly advantageous developments of the invention are characterized in the subclaims.
Durch die Erfindung wird in kostengüstiger Weise die Steifigkeit, insbesondere die Verwindungssteifigkeit erhöht. Durch die Erfindung kann aber auch die erforderliche Blechdicke gesenkt werden.The invention increases the rigidity, in particular the torsional rigidity, in a cost-effective manner. The invention also allows the required sheet thickness to be reduced.
Anhand der Zeichnung, in der ein Ausführungsbeispiel dargestellt ist, sollen die Erfindung, weitere Ausgestaltungen und Verbesserungen der Erfindung und weitere Vorteile näher beschrieben und erläutert werden.The invention, further refinements and improvements of the invention and further advantages are to be described and explained in more detail with reference to the drawing, in which an exemplary embodiment is shown.
Es zeigt:It shows:
Fig. 1 eine perspektivische Darstellung des Schienenkanals,1 is a perspective view of the rail channel,
Fig. 2 eine auseinandergezogene Darstellung von den in Fig. 1 dargestellten Schienenkanals, Fig. 3 eine Darstellung des Doppel-T-Profiles,2 is an exploded view of the rail channel shown in FIG. 1, 3 is an illustration of the double-T profile,
Fig. 4 eine Darstellung des Hut-Profiles,4 is an illustration of the hat profile,
Fig. 5 eine Darstellung beider Profile im Zusammengesetzen Zustand,5 shows a representation of both profiles in the assembled state,
Fig. 6 eine Darstellung der Nietverbindung,6 shows the rivet connection,
Fig. 7 eine Schnittdarstellung des Isolierprofils undFig. 7 is a sectional view of the insulating profile and
Fig.8a-c Darstellungen des Herstellungsverfahren der Nietverbindung.Fig.8a-c representations of the manufacturing process of the rivet connection.
Die Fig. 1 zeigt den Schienenkanal 1, in dem die Stromschienen 2 in einem Isolierprofil 3 eingebettet sind. In bekanter Weise sind Abgangsstellen 4 für Abgangskästen vorhanden.1 shows the rail channel 1, in which the busbars 2 are embedded in an insulating profile 3. In a well-known manner, there are outlet points 4 for outlet boxes.
Wie noch näher beschrieben wird, sind an den Seiten jeweils eine Reihe von fluchtenden Nietverbindungen 5 angeordnet, die Zusammen mit den Gehäusehälften dem Schienenkanal seine besondere Steifigkeit -in bezug auf Verwinden oder Durchhähngen- verleihen.As will be described in more detail, a series of aligned rivet connections 5 are arranged on the sides, which together with the housing halves give the rail channel its particular rigidity with respect to twisting or sagging.
Die Fig. 2 zeigt beide Gehäusehälften des Schienenkanals l, die auseinandergezogen dargestellt sind.2 shows both housing halves of the rail channel 1, which are shown pulled apart.
Eine der Gehäusehälten besteht aus einem Doppel-T-Profil 6, während die andere Gehäusehälfte aus einem Hut-Profil 7 besteht, wie näher in der Figuren 3 und 4 zu sehen ist.One of the housing halves consists of a double-T profile 6, while the other housing half consists of a hat profile 7, as can be seen in more detail in FIGS. 3 and 4.
Durch das Doppel-T-Profil 7 erhält der Schienenkanal l eine besondere Steifigkeit. Das Doppel-T-Profil 6 ist aus einem Blechabschnitt gebogen, wobei die Kanten zusätzlich mit einem Bördel 8 versehen sind.Due to the double-T profile 7, the rail channel 1 is particularly rigid. The double-T profile 6 is bent from a sheet metal section, the edges additionally being provided with a flange 8.
Die andere als U-Profil 7 geformte Gehäusehälfte wird bündig zwischen den Seitenabschnitten 9 angeordnet. Das Hut-Profil weist einen Basisabschnitt 10, ein senkrecht hierzu angeordneten Wandabschnitt 11, einen wieder parallen zu Basisabschnitt 10 angeordneten Befestigungsabschnitt 12 zur Befestigung mit den Nietverbindunden 5 und einen senkrecht in Richtung des Befestigungsabschnittes 10 gebogenen Verstärkungsabschnittes 13. Das Hut-Profil, auch als Unterschale bezeichnet, bildet die Form einen Wanne, in der das Isolierprofil 3 eingebettet ist.The other half of the housing, shaped as a U-profile 7, is arranged flush between the side sections 9. The hat profile has a base section 10, a wall section 11 arranged perpendicularly thereto, a fastening section 12 again arranged parallel to the base section 10 for fastening to the rivet connections 5 and a reinforcing section 13 bent perpendicularly in the direction of the fastening section 10. The hat profile, also as Called the lower shell, the shape forms a trough in which the insulating profile 3 is embedded.
Das Doppel-T-Profil 6 weist Durchbrüche für Isolierstoffteile 17 mit Stecköffnungen 16 und Verschlußschiebern auf. Die Durchbrüche 18 sind etwas größer als die Isolierstoffteile 17, wodurch ein Fenster 20 entsteht, so daß eine PE-Verbindung zwischen Abgangskasten und Schiehenkasten trotz lackierter Oberschale (Doppel-T-Profil 6) möglich ist.The double-T profile 6 has openings for insulating parts 17 with plug openings 16 and slide gates. The openings 18 are somewhat larger than the insulating parts 17, which creates a window 20, so that a PE connection between the tap-off unit and the box unit is possible despite the coated upper shell (double-T profile 6).
Vorzugsweise ist das Fenster zwischen der Abgangsstelle und dem Seitenabschnitt 9 im Bereich des Befestigungsabschnittes 12 angeordnet. Der Erdungskontakt des Abgangskastens greift auf die metallisch blanken Stelle des Befestigungsabschnittes 12.The window is preferably arranged between the departure point and the side section 9 in the region of the fastening section 12. The grounding contact of the tap-off box engages the bare metal location of the fastening section 12.
Die Bördelnietung (Nietverbindung 5) verbindet die elektrisch lackierte Oberschale mit der metallisch blanken Unterschale (Hut-Profil 7) zwecks Erdung durch starkes Verguetschen beim Nieten.The flanged rivet (rivet connection 5) connects the electrically painted upper shell to the bare metal lower shell (hat profile 7) for the purpose of earthing through heavy grouting during riveting.
Die PE-Verbindung der Schienenkästen bzw. einkelnen Schienenkanäle l wird durch einen Verbindungsflansch 19 und der blanken Unterschale erreicht.The PE connection of the rail boxes or single rail channels 1 is through a connecting flange 19 and bare lower shell reached.
Durch die Bördelnietung ist es möglich in einfacher Weise Zubehör, z.B. mit gewindefurchenden Schrauben, zu Befestigen. Mit der Bördelvernietung ist eine direkte Verschraubung des Schienenkanals mit Distanzbuchsen möglich.Flanging riveting makes it possible to easily add accessories, e.g. to be fastened with self-tapping screws. With the flanged riveting, the rail channel can be screwed directly to the spacer bushings.
Mit der Nietverbindung 5 erreicht mann eine hohe IP-Schutzart. Zwischen den Abgangsstellen sind jeweils zwei Nietverbindungen 5 angeordnet.The rivet connection 5 achieves a high degree of IP protection. Two rivet connections 5 are arranged between the departure points.
In der Fig. 8a sind die Ober- und Unterschale im Bereich des Befestigungsabschnittes 12 gezeigt. Die mit 21 gekennzeichte Einführbohrung kann entfallen, wenn ein ausreichend spitzer Stempel verwendet wird, der von oben gedrückt wird. Hierdurch entsteht, die in Fig. 8b gezeigte Öffnung mit den Bördelrändern 22, 23. Durch einen von unten drückenden zweiten Stempel 24 werden die Bördelränder 22, 23 geweitet und flach gedrückt, so daß die in den Figuren 8c und 6 gezeigte Form entsteht.8a shows the upper and lower shells in the area of the fastening section 12. The insertion hole marked with 21 can be omitted if a sufficiently pointed punch is used which is pressed from above. This results in the opening shown in FIG. 8b with the flange edges 22, 23. The flange edges 22, 23 are widened and pressed flat by a second punch 24 pressing from below, so that the shape shown in FIGS. 8c and 6 is produced.
An den Seitenabschnitten 9 sind auf der Ebene des Hut-Profiles 7 Befestigungsausbrüche 25 für die Befestigung von Abgangs- oder anderen Kästen mittels in die Befestigungsausbrüche 25 greifenden Befestigungskrallen vorhanden. On the side sections 9, at the level of the hat profile 7, there are fastening cutouts 25 for the attachment of outgoing boxes or other boxes by means of fastening claws which reach into the attachment openings 25.

Claims

Patentansprüche claims
1. Schienenkanal für Schienenverteiler bestehend aus zwei Gehäusehälften auch Blech und Stromschienen, die in dem Schienenkanal flach auf einer Ebene an dem Schienenkanalboden isoliert angeodnet sind, wobei beide Gehäusehälften Bereiche aufweisen, die flach aneinanderstoßen, dadurch gekennzeichnet, daß eine Gehäusehälfte, die die Oberschale bildet, aus einem Doppel- T-Profil (6) besteht, während die andere Gehäusehälfte, die die Unterschale bildet, aus einem Hut-Profil (7) besteht.1. Rail channel for busbar trunking consisting of two housing halves also sheet metal and busbars, which are insulated in the rail channel flat on one level on the rail channel bottom, both housing halves having areas that abut each other, characterized in that a housing half that forms the upper shell , consists of a double T-profile (6), while the other half of the housing, which forms the lower shell, consists of a hat profile (7).
2. Schienenkanal nach Anspruch 1, dadurch gekennzeichnet, daß das Doppel-T-Profil (6) aus einem Stück gebogen ist und daß die Kanten zusätzlich mit einem Bördel 8 versehen sind.2. Rail channel according to claim 1, characterized in that the double-T profile (6) is bent from one piece and that the edges are additionally provided with a flange 8.
3. Schienenkanal nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Doppel-T-Profil (6) Durchbrüche für Isolierstofteile (17) mit Stecköffnungen (16) und Verschlußschiebern aufweist, wobei die Durchbrüche (18) etwas größer als die Isolierstoffteile (17) sind, wodurch ein Fenster (20) entsteht, so daß eine PE-Verbindung zwischen einen Abgangskasten und dem Hut-Profil (7) des Schienenkanals trotz einer lackierten Oberschale möglich ist.3. Rail channel according to claim 1 or 2, characterized in that the double-T profile (6) has openings for insulating parts (17) with plug-in openings (16) and locking slides, the openings (18) somewhat larger than the insulating parts (17 ), which creates a window (20) so that a PE connection between a tap-off unit and the hat profile (7) of the rail channel is possible despite a painted upper shell.
4. Schienenkanal nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß an den Seitenabschnitten (9) auf der Ebene des Hut-Profiles (7) Befestigungsausbrüche (25) für die Befestigung von Abgangs- oder anderen Kästen mittels in die Befestigungsausbrüche (25) greifenden Befestigungskrallen vorhanden sind.4. Rail channel according to one of the preceding claims, characterized in that on the side sections (9) on the level of the hat profile (7) mounting cutouts (25) for the attachment of outgoing or other boxes by means of fastening claws which reach into the fastening cutouts (25).
5. Schienenkanal nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Gehäusehälften durch Nietverbindungen (5) miteinander verbunden sind.5. Rail channel according to one of the preceding claims, characterized in that the housing halves are connected to one another by rivet connections (5).
6. Schienenkanal nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Nietverbindungen Bördelnietverbindungen sind. 6. Rail channel according to one of the preceding claims, characterized in that the rivet connections are flared rivet connections.
PCT/DE1996/002017 1995-10-31 1996-10-24 Busbar channel for busway WO1997016876A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP96945525A EP0858686A2 (en) 1995-10-31 1996-10-24 Busbar channel for busway
AU15900/97A AU1590097A (en) 1995-10-31 1996-10-24 Busbar channel for busway

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29517176.6 1995-10-31
DE29517176U DE29517176U1 (en) 1995-10-31 1995-10-31 Rail channel for rail distributors

Publications (2)

Publication Number Publication Date
WO1997016876A2 true WO1997016876A2 (en) 1997-05-09
WO1997016876A3 WO1997016876A3 (en) 1997-08-07

Family

ID=8014780

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1996/002017 WO1997016876A2 (en) 1995-10-31 1996-10-24 Busbar channel for busway

Country Status (4)

Country Link
EP (1) EP0858686A2 (en)
AU (1) AU1590097A (en)
DE (1) DE29517176U1 (en)
WO (1) WO1997016876A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7252524B1 (en) * 2006-03-17 2007-08-07 Eaton Power Quality Corporation Power interconnect assemblies and methods for configuring the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3287487A (en) * 1964-02-28 1966-11-22 Gen Electric Universal busway elbow
EP0330525A1 (en) * 1988-02-25 1989-08-30 Telemecanique Prefabricated electric conduit, adaptable to several rated currents, of the type comprising a flat, channelled insulator support for conductor rails
GB2218578A (en) * 1988-03-30 1989-11-15 Telemecanique Electrique Connection device with coded safety cover
WO1994022192A1 (en) * 1993-03-25 1994-09-29 Siemens Energy & Automation, Inc. Multi-neutral electrical busway
DE4403132A1 (en) * 1994-02-02 1995-08-03 Gardner Denver Gmbh Conveyor line with successive conveyor sections

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3287487A (en) * 1964-02-28 1966-11-22 Gen Electric Universal busway elbow
EP0330525A1 (en) * 1988-02-25 1989-08-30 Telemecanique Prefabricated electric conduit, adaptable to several rated currents, of the type comprising a flat, channelled insulator support for conductor rails
GB2218578A (en) * 1988-03-30 1989-11-15 Telemecanique Electrique Connection device with coded safety cover
WO1994022192A1 (en) * 1993-03-25 1994-09-29 Siemens Energy & Automation, Inc. Multi-neutral electrical busway
DE4403132A1 (en) * 1994-02-02 1995-08-03 Gardner Denver Gmbh Conveyor line with successive conveyor sections

Also Published As

Publication number Publication date
EP0858686A2 (en) 1998-08-19
WO1997016876A3 (en) 1997-08-07
AU1590097A (en) 1997-05-22
DE29517176U1 (en) 1997-03-06

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