WO2008087097A1 - Method for changing filters - Google Patents

Method for changing filters Download PDF

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Publication number
WO2008087097A1
WO2008087097A1 PCT/EP2008/050268 EP2008050268W WO2008087097A1 WO 2008087097 A1 WO2008087097 A1 WO 2008087097A1 EP 2008050268 W EP2008050268 W EP 2008050268W WO 2008087097 A1 WO2008087097 A1 WO 2008087097A1
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WO
WIPO (PCT)
Prior art keywords
filter
needle
valve
filters
piercing
Prior art date
Application number
PCT/EP2008/050268
Other languages
German (de)
French (fr)
Inventor
Andreas Wimmer
Original Assignee
Andreas Wimmer
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 Andreas Wimmer filed Critical Andreas Wimmer
Priority to EP08701414A priority Critical patent/EP2117737A1/en
Publication of WO2008087097A1 publication Critical patent/WO2008087097A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N31/00—Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
    • B09B3/35—Shredding, crushing or cutting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/42—Installation or removal of filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B2101/00—Type of solid waste
    • B09B2101/02—Gases or liquids enclosed in discarded articles, e.g. aerosol cans or cooling systems of refrigerators

Definitions

  • the present invention relates to a method for changing filters, in particular oil or fuel filters of internal combustion engines, in which the filter to be replaced is unscrewed from a holding element and the new filter is screwed onto the holding element, wherein before unscrewing the exchanged Filters this pierced and deflated.
  • Object of the present invention is to avoid these disadvantages and to provide a method in which environmental pollution can be reliably prevented. In particular, this should also be valid for the further manipulation of the filter.
  • Another object of the invention is to provide a device with which such a method can be carried out.
  • the method is characterized in that in the course of piercing the filter with a needle, a valve is inserted into the filter wall, which automatically seals the opening after pulling out the needle.
  • Essential to the present invention is that the content of the filter can not only be drained controlled, but that even after interruption or completion of the discharge process, for example when unscrewing the filter, a further leakage of the content can be avoided.
  • the valve inserted into the filter wall achieves these goals. In order to avoid damage to the valve when loosening the filter, it is preferred if the filter to be replaced is loosened before piercing with a tool. After piercing, the unscrewing of the filter can usually be done by hand.
  • the present invention relates to a device for exchanging filters, in particular oil or fuel filters of internal combustion engines.
  • the device according to the invention is characterized in that a needle is provided which is designed for piercing the filter, and that the device further comprises a valve which can be inserted into the wall of the filter.
  • An essential aspect of the invention is that the tool for piercing the filter is designed as a needle, so that an extremely fast and efficient breakthrough of the filter wall is possible, which further reduces the risk of leakage of medium, as given, for example the filter is drilled.
  • valve has an automatic locking mechanism, which closes it after pulling out the needle is particularly advantageous. In this way, the handling is much easier.
  • a particularly fast and efficient breakthrough of the filter wall can be achieved by a pneumatically driven device.
  • the piercing of the filter can be done in one operation with the onset of the valve, characterized in that the valve is designed to be plugged onto the needle. In this way, the insertion of the valve takes place virtually simultaneously with the piercing, so that the risk of leakage of filter medium can be virtually eliminated.
  • Fig. 1 is a general view of the device according to the invention.
  • Fig. 2 an attachment
  • Fig. 3 and Fig. 4 components of the valve in a side view
  • FIGS. 6 to 8 show sections along lines VI-VI, VII-VII and VIII-VIII in FIGS. 3 to 5.
  • the device of Fig. 1 consists of a pneumatic hammer 2 with a compressed air connection 1 in a generally known design.
  • To the pneumatic hammer 2 includes a tube 4, in which a bolt rod 3 is mounted axially movable.
  • the tube 4 terminates in a protective tube 5, from which a needle 6 connected to the bolt rod 3 protrudes.
  • a valve 7 can be plugged over the needle 6 and supported on the protective tube 5.
  • a hose 8 at the end of which a catheter 9 is provided serves to drain the oil or fuel from the filter.
  • the filter consists of an outer part 10, which has a cylindrical portion 11 which has an opening 12 on one side and to which on the opposite side a pipe section 13 is attached.
  • an inner part 14 is used, which partially covers the opening 12 by a front plate 15, wherein a bore 16 remains open in the middle.
  • a valve 7 made of an elastic material, such as rubber, is used. The valve 7 normally closes the passage between the tubular portion 13 of the outer part 10 and the bore 16 in the end plate 15. However, by inserting the catheter 9, the valve 7 can be opened to establish a flow connection through the valve 7 ,
  • the filter is loosened with a suitable tool, such as an oil filter claw.
  • a suitable tool such as an oil filter claw.
  • the valve 7 is placed on the steel needle 6 of the device and the tool via the compressed air connection 1 (6 bar to 8 bar) acted upon.
  • the tip of the needle 6 is applied to the lowest point of the filter and pressed.
  • the needle 6 is first pressed into the filter and then immediately pressed the valve 7 into the opening.
  • the seal 17 of the valve 7 completely seals the opening.
  • the tool can be removed and the catheter 9 of the tube 8 is inserted into the filter and the oil is allowed to drain. If necessary, active medium can also be sucked out of the filter. After removal of the tube 8, the filter can be easily and cleanly removed.
  • the present invention makes it possible to perform a filter change while avoiding any environmental impact.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Filtration Of Liquid (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

The invention relates to a method for changing filters, in particular oil or fuel filters of internal combustion engines having internal combustion, in which the filter to be changed out is unscrewed from a holding element and the new filter is screwed into the holding element, and the filter to be changed out is punctured and drained before being unscrewed. Environmental pollution can be avoided by this means, when in the course of the puncturing of the filter with a needle, a valve is inserted into the filter wall, said valve automatically sealing the opening following withdrawal of the needle.

Description

Verfahren zum Wechseln von Filtern Method for changing filters
Die vorliegende Erfindung betrifft ein Verfahren zum Wechseln von Filtern, insbesondere von Öl- oder Kraftstofffiltern von Brennkraftmaschinen mit innerer Verbrennung, bei dem der zu tauschende Filter von einem Haltelement abgeschraubt wird und der neue Filter auf das Halteelement aufgeschraubt wird, wobei vor dem Abschrauben des auszutauschenden Filters dieser angestochen und entleert wird.The present invention relates to a method for changing filters, in particular oil or fuel filters of internal combustion engines, in which the filter to be replaced is unscrewed from a holding element and the new filter is screwed onto the holding element, wherein before unscrewing the exchanged Filters this pierced and deflated.
Beim Wechsel von Filtern von Brennkraftmaschinen, beispielsweise in Fahrzeugen, tritt vielfach das Problem auf, dass das im Filter unter Druck stehende Medium beim Lösen des Filters austritt und die Umgebung verunreinigt. Es wird damit nicht nur eine saubere Arbeit verhindert, sondern es tritt auch ein Umweltproblem auf, wenn es nicht möglich ist, die Öl- oder Kraftstoffreste vollständig aufzufangen.When changing filters of internal combustion engines, for example in vehicles, there is often the problem that the medium under pressure in the filter escapes when the filter is released and contaminates the environment. It not only prevents clean work, but also an environmental problem occurs when it is not possible to completely absorb the oil or fuel residue.
Aus der DE 297 04 189 U und aus der DE 43 29 258 C ist es bekannt, Kraftstofffilter von Kraftfahrzeugen vor der Demontage durch eine Bohrung zu öffnen, um so die obigen Probleme zu verhindern. Durch diese bekannten Verfahren und Vorrichtungen ist es zwar möglich, den Innendruck in einem Filter abzusenken und den Filterinhalt teilweise zu entfernen, nach wie vor verbleibt jedoch das Problem, dass im Zuge der weiteren Manipulation der verbleibende Filterinhalt auslaufen kann, wodurch wiederum Umweltprobleme auftreten.From DE 297 04 189 U and DE 43 29 258 C it is known to open fuel filters of motor vehicles before disassembly through a bore, so as to prevent the above problems. Although it is possible by these known methods and devices to lower the internal pressure in a filter and to partially remove the filter contents, the problem still remains that in the course of further manipulation the remaining filter contents may leak, which in turn causes environmental problems.
Aufgabe der vorliegenden Erfindung ist es, diese Nachteile zu vermeiden und ein Verfahren zu schaffen, bei dem eine Umweltverschmutzung zuverlässig verhindert werden kann. Insbesondere soll dies auch für die weitere Manipulation des Filters Gültigkeit haben. Eine weitere Aufgabe der Erfindung ist es, eine Vorrichtung anzugeben, mit dem ein solches Verfahren durchgeführt werden kann.Object of the present invention is to avoid these disadvantages and to provide a method in which environmental pollution can be reliably prevented. In particular, this should also be valid for the further manipulation of the filter. Another object of the invention is to provide a device with which such a method can be carried out.
Erfindungsgemäß ist das Verfahren dadurch gekennzeichnet, dass im Zuge des Anstechens des Filters mit einer Nadel ein Ventil in die Filterwand eingesetzt wird, das die Öffnung nach dem Herausziehen der Nadel selbsttätig abdichtet.According to the invention, the method is characterized in that in the course of piercing the filter with a needle, a valve is inserted into the filter wall, which automatically seals the opening after pulling out the needle.
Wesentlich an der vorliegenden Erfindung ist, dass der Inhalt des Filters nicht nur kontrolliert abgelassen werden kann, sondern dass auch nach Unterbrechung oder Vollendung des Ablassvorganges, beispielsweise beim Abschrauben des Filters, ein weiterer Austritt des Inhaltes vermieden werden kann. Durch das in die Filterwand eingesetzte Ventil werden diese Ziele erreicht. Um eine Beschädigung des Ventils beim Lockern des Filters zu vermeiden, ist es bevorzugt, wenn der auszutauschende Filter vor dem Anstechen mit einem Werkzeug gelockert wird. Nach dem Anstechen kann dann das Abschrauben des Filters in der Regel per Hand erfolgen.Essential to the present invention is that the content of the filter can not only be drained controlled, but that even after interruption or completion of the discharge process, for example when unscrewing the filter, a further leakage of the content can be avoided. The valve inserted into the filter wall achieves these goals. In order to avoid damage to the valve when loosening the filter, it is preferred if the filter to be replaced is loosened before piercing with a tool. After piercing, the unscrewing of the filter can usually be done by hand.
Weiters betrifft die vorliegende Erfindung eine Vorrichtung zum Austausch von Filtern, insbesondere von Öl- oder Kraftstofffiltern von Brennkraftmaschinen mit inneren Verbrennung. Die Vorrichtung ist erfindungsgemäß dadurch gekennzeichnet, dass eine Nadel vorgesehen ist, die zum Anstechen des Filters ausgebildet ist, und dass die Vorrichtung weiters ein Ventil aufweist, das in die Wand des Filters einsetzbar ist.Furthermore, the present invention relates to a device for exchanging filters, in particular oil or fuel filters of internal combustion engines. The device according to the invention is characterized in that a needle is provided which is designed for piercing the filter, and that the device further comprises a valve which can be inserted into the wall of the filter.
Ein wesentliche Aspekt der Erfindung besteht darin, dass das Werkzeug zum Anstechen des Filters als Nadel ausgebildet ist, so dass eine äußerst schnelle und effiziente Durchbrechung der Filterwand möglich ist, was die Gefahr eines Austrittes von Medium weiter verringert, wie er beispielsweise gegeben ist, wenn der Filter angebohrt wird.An essential aspect of the invention is that the tool for piercing the filter is designed as a needle, so that an extremely fast and efficient breakthrough of the filter wall is possible, which further reduces the risk of leakage of medium, as given, for example the filter is drilled.
Besonders vorteilhaft ist es, wenn das Ventil einen selbsttätigen Verschlussmechanismus aufweist, der es nach Herausziehen der Nadel verschließt. Auf diese Weise wird die Handhabung wesentlich vereinfacht. Eine besonders schnelle und effiziente Durchbrechung der Filterwand kann durch eine pneumatisch angetriebene Vorrichtung erreicht werden.It when the valve has an automatic locking mechanism, which closes it after pulling out the needle is particularly advantageous. In this way, the handling is much easier. A particularly fast and efficient breakthrough of the filter wall can be achieved by a pneumatically driven device.
Das Anstechen des Filters kann in einem Arbeitsgang mit dem Einsetzen des Ventils dadurch erfolgen, dass das Ventil auf die Nadel aufsteckbar ausgeführt ist. Auf diese Weise erfolgt das Einsetzen des Ventils praktisch gleichzeitig mit dem Anstechen, so dass die Gefahr des Austrittes von Filtermedium praktisch ausgeschlossen werden kann.The piercing of the filter can be done in one operation with the onset of the valve, characterized in that the valve is designed to be plugged onto the needle. In this way, the insertion of the valve takes place virtually simultaneously with the piercing, so that the risk of leakage of filter medium can be virtually eliminated.
In der Folge wird die vorliegende Erfindung anhand des in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert. Es zeigen :In the following, the present invention will be explained in more detail with reference to the embodiment shown in the drawings. Show it :
Fig. 1 eine allgemeine Darstellung der erfindungsgemäßen Vorrichtung;Fig. 1 is a general view of the device according to the invention;
Fig. 2 ein Zusatzgerät;Fig. 2 an attachment;
Fig. 3 und Fig. 4 Bauteile des Ventils in einer seitlichen Ansicht;Fig. 3 and Fig. 4 components of the valve in a side view;
Fig. 5 das Ventil in zusammengebautem Zustand; und5 shows the valve in the assembled state. and
Fig. 6 bis Fig. 8 Schnitte nach Linien VI-VI, VII-VII, bzw. VIII-VIII in den Fig. 3 bis Fig. 5. Die Vorrichtung von Fig. 1 besteht aus einem Drucklufthammer 2 mit einem Druckluftanschluss 1 in allgemein bekannter Ausführung. An den Drucklufthammer 2 schließt ein Rohr 4 an, in dem eine Bolzenstange 3 axial beweglich gelagert ist. Das Rohr 4 endet in einem Schutzrohr 5, aus dem eine mit der Bolzenstange 3 verbundene Nadel 6 vorragt. Ein Ventil 7 ist über die Nadel 6 aufsteckbar und an dem Schutzrohr 5 abzustützen. Ein Schlauch 8 an dessen Ende ein Katheter 9 vorgesehen ist, dient zum Ablassen des Öls oder Kraftstoffes aus dem Filter.FIGS. 6 to 8 show sections along lines VI-VI, VII-VII and VIII-VIII in FIGS. 3 to 5. The device of Fig. 1 consists of a pneumatic hammer 2 with a compressed air connection 1 in a generally known design. To the pneumatic hammer 2 includes a tube 4, in which a bolt rod 3 is mounted axially movable. The tube 4 terminates in a protective tube 5, from which a needle 6 connected to the bolt rod 3 protrudes. A valve 7 can be plugged over the needle 6 and supported on the protective tube 5. A hose 8 at the end of which a catheter 9 is provided serves to drain the oil or fuel from the filter.
In Fig. 3 bis Fig. 8 ist der Filter detailliert dargestellt. Der Filter besteht aus einem Außenteil 10, der einen zylindrischen Abschnitt 11 aufweist, der auf einer Seite eine Öffnung 12 hat und an den an der gegenüberliegenden Seite ein Rohrstück 13 angesetzt ist. In den Außenteil 11 ist ein Innenteil 14 eingesetzt, der die Öffnung 12 durch eine Stirnplatte 15 teilweise abdeckt, wobei mittig eine Bohrung 16 offen bleibt. In den Innenraum des Abschnittes 11 des Außenteiles 10 ist ein Ventil 7 aus einem elastischen Material, wie etwa Gummi, eingesetzt. Das Ventil 7 verschließt im Normalfall den Durchgang zwischen dem rohrförmi- gen Abschnitt 13 des Außenteiles 10 und der Bohrung 16 in der Stirnplatte 15. Durch das Einführen des Katheters 9 kann jedoch das Ventil 7 geöffnet werden, um eine Strömungsverbindung durch das Ventil 7 hindurch herzustellen.In Fig. 3 to Fig. 8, the filter is shown in detail. The filter consists of an outer part 10, which has a cylindrical portion 11 which has an opening 12 on one side and to which on the opposite side a pipe section 13 is attached. In the outer part 11, an inner part 14 is used, which partially covers the opening 12 by a front plate 15, wherein a bore 16 remains open in the middle. In the interior of the portion 11 of the outer part 10, a valve 7 made of an elastic material, such as rubber, is used. The valve 7 normally closes the passage between the tubular portion 13 of the outer part 10 and the bore 16 in the end plate 15. However, by inserting the catheter 9, the valve 7 can be opened to establish a flow connection through the valve 7 ,
In der Folge wird die Funktion der erfindungsgemäßen Vorrichtung näher erläutert.In the following, the function of the device according to the invention will be explained in more detail.
Zunächst wird der nicht dargestellten Filter mit einem geeigneten Werkzeug, wie etwa einer Ölfilterkralle gelockert. Dies dient dazu, um nach dem Ablassen des Inhaltes den Filter von Hand entfernen zu können, um so Beschädigungen zu vermeiden. Danach wird das Ventil 7 auf die Stahlnadel 6 der Vorrichtung gesteckt und das Werkzeug über den Druckluftanschluss 1 (6 bar bis 8 bar) beaufschlagt. Anschließend wird die Spitze der Nadel 6 am untersten Punkt des Filters angelegt und angedrückt. Durch die Druckluft verursachte Schlagbewegung wird zunächst die Nadel 6 in den Filter eingedrückt und danach unmittelbar das Ventil 7 in die Öffnung eingepresst. Die Dichtung 17 des Ventils 7 dichtet die Öffnung vollständig ab. Danach kann das Werkzeug entfernt werden und es wird der Katheter 9 des Schlauches 8 in den Filter eingesteckt und das Öl auslaufen gelassen. Gegebenenfalls kann auch aktiv Medium aus dem Filter abgesaugt werden. Nach Entfernung des Schlauches 8 kann der Filter problemlos und sauber entfernt werden.First, the filter, not shown, is loosened with a suitable tool, such as an oil filter claw. This serves to be able to remove the filter by hand after the discharge of the content, so as to avoid damage. Thereafter, the valve 7 is placed on the steel needle 6 of the device and the tool via the compressed air connection 1 (6 bar to 8 bar) acted upon. Subsequently, the tip of the needle 6 is applied to the lowest point of the filter and pressed. By the compressed air caused impact movement, the needle 6 is first pressed into the filter and then immediately pressed the valve 7 into the opening. The seal 17 of the valve 7 completely seals the opening. Thereafter, the tool can be removed and the catheter 9 of the tube 8 is inserted into the filter and the oil is allowed to drain. If necessary, active medium can also be sucked out of the filter. After removal of the tube 8, the filter can be easily and cleanly removed.
Die vorliegende Erfindung ermöglicht es, einen Filterwechsel unter Vermeidung jeglicher Umweltbelastung durchzuführen. The present invention makes it possible to perform a filter change while avoiding any environmental impact.

Claims

PATENTANSPRUCHE PATENT CLAIMS
1. Verfahren zum Wechseln von Filtern, insbesondere von Öl- oder Kraftstofffiltern von Brennkraftmaschinen mit innerer Verbrennung, bei dem der zu tauschende Filter von einem Haltelement abgeschraubt wird und der neue Filter auf das Halteelement aufgeschraubt wird, wobei vor dem Abschrauben des auszutauschenden Filters dieser angestochen und entleert wird, dadurch gekennzeichnet, dass im Zuge des Anstechens des Filters mit einer Nadel ein Ventil in die Filterwand eingesetzt wird, das die Öffnung nach dem Herausziehen der Nadel selbsttätig abdichtet.1. A method for changing filters, in particular of oil or fuel filters of internal combustion engines, wherein the filter to be replaced is unscrewed from a holding element and the new filter is screwed onto the retaining element, which pierced prior to unscrewing the filter to be replaced and is emptied, characterized in that in the course of piercing the filter with a needle, a valve is inserted into the filter wall, which automatically seals the opening after pulling out the needle.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der auszutauschende Filter vor dem Anstechen mit einem Werkzeug gelockert wird.2. The method according to claim 1, characterized in that the filter to be replaced is loosened before piercing with a tool.
3. Vorrichtung zum Austausch von Filtern, insbesondere von Öl- oder Kraftstofffiltern von Brennkraftmaschinen mit inneren Verbrennung, dadurch gekennzeichnet, dass eine Nadel (6) vorgesehen ist, die zum Anstechen des Filters ausgebildet ist, und dass die Vorrichtung weiters ein Ventil (7) aufweist, das in die Wand des Filters einsetzbar ist.3. A device for exchanging filters, in particular of oil or fuel filters of internal combustion engines, characterized in that a needle (6) is provided, which is designed for piercing the filter, and that the device further comprises a valve (7). has, which is insertable into the wall of the filter.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass das Ventil (7) einen selbsttätigen Verschlussmechanismus aufweist, der es nach Herausziehen der Nadel (6) verschließt.4. Apparatus according to claim 3, characterized in that the valve (7) has an automatic locking mechanism, which closes it after pulling out the needle (6).
5. Vorrichtung nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, dass die Vorrichtung pneumatisch angetrieben ist.5. Device according to one of claims 3 or 4, characterized in that the device is pneumatically driven.
6. Vorrichtung nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass das Ventil (7) auf die Nadel (6) aufsteckbar ist. 6. Device according to one of claims 3 to 5, characterized in that the valve (7) on the needle (6) can be plugged.
PCT/EP2008/050268 2007-01-17 2008-01-11 Method for changing filters WO2008087097A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08701414A EP2117737A1 (en) 2007-01-17 2008-01-11 Method for changing filters

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA87/2007 2007-01-17
AT0008707A AT504474B1 (en) 2007-01-17 2007-01-17 SERVICE TOOL FOR FILTER EMPTYING

Publications (1)

Publication Number Publication Date
WO2008087097A1 true WO2008087097A1 (en) 2008-07-24

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ID=39226705

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EP (1) EP2117737A1 (en)
AT (1) AT504474B1 (en)
WO (1) WO2008087097A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989012829A1 (en) * 1988-06-23 1989-12-28 Baxter International Inc. System for providing access to sealed containers
DE4329258C1 (en) 1993-08-31 1995-04-20 Walter Bihl Device for draining off liquids from closed containers, in particular fuel filters
US5546979A (en) * 1994-09-02 1996-08-20 Clark Technology Systems, Inc. Device for draining fluid from a container
DE29704189U1 (en) 1997-03-08 1997-05-07 Weißhaar, Angelika, 78052 Villingen-Schwenningen Device for emptying closed containers, in particular fuel filters
EP0794020A2 (en) * 1996-03-09 1997-09-10 Weisshaar, Angelika Device for emptying closed containers, in particular fuel filters

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3538589A1 (en) * 1985-10-30 1987-05-07 Hengst Walter Gmbh & Co Kg Oil filter for cleaning lubricating oil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989012829A1 (en) * 1988-06-23 1989-12-28 Baxter International Inc. System for providing access to sealed containers
DE4329258C1 (en) 1993-08-31 1995-04-20 Walter Bihl Device for draining off liquids from closed containers, in particular fuel filters
US5546979A (en) * 1994-09-02 1996-08-20 Clark Technology Systems, Inc. Device for draining fluid from a container
EP0794020A2 (en) * 1996-03-09 1997-09-10 Weisshaar, Angelika Device for emptying closed containers, in particular fuel filters
DE29704189U1 (en) 1997-03-08 1997-05-07 Weißhaar, Angelika, 78052 Villingen-Schwenningen Device for emptying closed containers, in particular fuel filters

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Publication number Publication date
EP2117737A1 (en) 2009-11-18
AT504474A4 (en) 2008-06-15
AT504474B1 (en) 2008-06-15

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