EP0319730A1 - Tube-driving device - Google Patents

Tube-driving device Download PDF

Info

Publication number
EP0319730A1
EP0319730A1 EP88118805A EP88118805A EP0319730A1 EP 0319730 A1 EP0319730 A1 EP 0319730A1 EP 88118805 A EP88118805 A EP 88118805A EP 88118805 A EP88118805 A EP 88118805A EP 0319730 A1 EP0319730 A1 EP 0319730A1
Authority
EP
European Patent Office
Prior art keywords
ram
tube
jacking
rear end
pipe
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.)
Granted
Application number
EP88118805A
Other languages
German (de)
French (fr)
Other versions
EP0319730B1 (en
Inventor
Paul Schmidt
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0319730A1 publication Critical patent/EP0319730A1/en
Application granted granted Critical
Publication of EP0319730B1 publication Critical patent/EP0319730B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
    • E02D13/10—Follow-blocks of pile-drivers or like devices
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/28—Placing of hollow pipes or mould pipes by means arranged inside the piles or pipes

Definitions

  • the invention relates to a ram for ramming pipes such as protective or conduit pipes.
  • jacking pipes generally requires a starting pit or a starting shaft in which the ram and jacking pipe are prepared.
  • German utility model 87 07 158 that the ram can no longer be engaged directly or by means of a ramming attachment in the rear tube end, but must be arranged in the jacking tube. In this way, the required length of the launch pit is essentially determined only by the length of the jacking pipe.
  • the known inner ram is enclosed by a cladding tube arranged in the jacking tube, the conical impact tip of the ram positively engaging in an inner ring arranged at the forward end of the cladding tube in the direction of advance, so that the thrust force of the ramming over the either movable or with the ram housing rigidly connected impact tip on the inner ring and thus transmits the enveloping tube.
  • the invention has for its object to improve the internal ramming of pipes, in particular to reduce the mechanical effort.
  • this object is achieved in that the rear end of the ram is preferably positively connected to the rear end of the jacking tube in the direction of advance, for which purpose the rear end of the ram can advantageously be provided with a tapering approach to the direction of advance. Due to the connection according to the invention of the thickened rear end of the ram or the ram housing with the rear end of the jacking tube, the thrust of the ram is introduced directly, ie without deflection as jacking force into the jacking tube. This does not require a tube which additionally envelops the ram and is also provided with a collar, or a tensioning device which couples the jacking tube to the ram in order to avoid impact impacts.
  • the rear end of the ram By means of a connecting piece, such as a ram cone or a ram segment, between the extension and the jacking pipe, the rear end of the ram, thickened by the extension, can be adapted to different pipe diameters; it is only necessary to push one or more connecting pieces corresponding to the inside diameter of the jacking pipe onto the ramming attachment.
  • a connecting piece such as a ram cone or a ram segment
  • a ram 3 is arranged, which is supported with its conical striking tip 4 in a support ring 5.
  • the rear end of the ram 3 has a tapering in the direction of the impact tip 4 approach 6 and a push-fit on the approach 6, formed as a ram cone 7, so that the rear end of the ram 3 over the approach 6 and the ram cone 7 with the rear End of the jacking pipe 2 is connected.
  • FIG. 2 shows the attachment of a following pipe 2b to a jacking pipe 2a which is almost completely rammed into the soil 8.
  • the following pipe 2b is in the starting position shown in a starting pit 9 and is supported on a base frame 12 by means of support rollers 11 arranged prismatically on bases 10.
  • the rear end of the ram 3 is positively connected to the rear end of the follow-up tube 2b in the direction of propulsion via the conical extension 6 and the intermediate ram cone 7.
  • the percussion piston is usually acted upon pneumatically, hydraulically or mechanically.
  • compressed air is passed from a compressor (not shown) via an air hose 13 with an integrated reversing valve 14 into the interior of the ram 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

In a driving device (3) for the internal driving of tubes, the rear end of which is connected to the rear end (in the direction of thrust) of the thrust tube (2), the introduction of the thrust force is improved and is improved with less mechanical complexity. <IMAGE>

Description

Die Erfindung betrifft eine Ramme zum Innen-Rammen von Rohren wie beispielsweise Schutz- oder Leitungsrohre.The invention relates to a ram for ramming pipes such as protective or conduit pipes.

Das Einrammen von nachfolgend als Vortriebsrohr bezeichne­ten Rohren erfordert in aller Regel eine Startgrube bzw. einen Startschacht, in dem Ramme und Vortriebsrohr vor­bereitet werden. Um die Abmessungen der Startgrube zu ver­ringern, ist es durch die deutsche Gebrauchsmusterschrift 87 07 158 bekanntgeworden, die Ramme nicht mehr mit ihrer Schlagspitze direkt oder mittels eines Rammaufsatzes in das rückwärtige Rohrende eingreifen zu lassen, sondern in dem Vortriebsrohr anzuordnen. Auf diese Weise wird die er­forderliche Länge der Startgrube im wesentlichen lediglich von der Länge des Vortriebsrohres bestimmt.The ramming of pipes referred to below as jacking pipes generally requires a starting pit or a starting shaft in which the ram and jacking pipe are prepared. In order to reduce the dimensions of the launch pit, it has become known from German utility model 87 07 158 that the ram can no longer be engaged directly or by means of a ramming attachment in the rear tube end, but must be arranged in the jacking tube. In this way, the required length of the launch pit is essentially determined only by the length of the jacking pipe.

Damit sich das Vortriebsrohr einrammen läßt, ist die be­kannte Innenramme von einem in dem Vortriebsrohr ange­ordneten Hüllrohr umschlossen, wobei die kegelförmige Schlagspitze der Ramme formschlüssig in einen an dem in Vortriebsrichtung vorderen Ende des Hüllrohres angeordneten Innenring eingreift, so daß sich die Schubkraft der Ramme über die entweder bewegliche oder mit dem Rammengehäuse starr verbundene Schlagspitze auf den Innenring und damit das umhüllende Rohr überträgt. Zum Umlenken der auf das Hüllrohr übertragenen Schubkraft und zum Umsetzen als Vor­triebskraft für das Vortriebsrohr, befindet sich ein Au­ßenkragen an dem in Richtung des Vortriebs hinteren Ende des Hüllrohres, der sich an die rückwärtige Stirnseite des Vortriebsrohres anlegt; die Schubkraft wird somit über den Innenring, das Hüllrohr und den Außenkragen auf das Vor­triebsrohr umgelenkt. Um Prallschläge zu vermeiden, die unter der Amboßwirkung des am Vortriebsrohr stumpf anlie­genden Außenkragens des Hüllrohres entstehen, sind die Ram­me und das Rohr durch eine Verspannung miteinander ver­bunden.So that the jacking tube can be rammed in, the known inner ram is enclosed by a cladding tube arranged in the jacking tube, the conical impact tip of the ram positively engaging in an inner ring arranged at the forward end of the cladding tube in the direction of advance, so that the thrust force of the ramming over the either movable or with the ram housing rigidly connected impact tip on the inner ring and thus transmits the enveloping tube. To deflect the thrust force transmitted to the cladding tube and to convert it as a thrust for the jacking tube, there is an outer collar at the rear end of the cladding tube in the direction of jacking, which lies against the rear end of the jacking tube; the thrust is thus redirected to the jacking pipe via the inner ring, the cladding tube and the outer collar. In order to avoid impact impacts that occur under the anvil effect of the outer collar of the cladding tube, which abuts the jacking tube bluntly, the ram and the tube are connected to one another by a tension.

Der Erfindung liegt die Aufgabe zugrunde, das Innen-Rammen von Rohren zu verbessern, insbesondere den maschinellen Aufwand zu verringern.The invention has for its object to improve the internal ramming of pipes, in particular to reduce the mechanical effort.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß das rückwärtige Ende der Ramme mit dem in Vortriebsrichtung hinteren Ende des Vortriebsrohres vorzugsweise formschlüs­sig verbunden ist, wozu sich das rückwärtige Ende der Ramme vorteilhaft mit einem sich zur Vortriebsrichtung verjüngen­den Ansatz versehen läßt. Aufgrund der erfindungsgemäßen Verbindung des beispielsweise verdickten rückwärtigen Endes der Ramme bzw. des Rammengehäuses mit dem hinteren Ende des Vortriebsrohres wird die Schubkraft der Ramme direkt, d.h. ohne Umlenkung als Vortriebskraft in das Vortriebsrohr ein­geleitet. Dazu bedarf es weder eines die Ramme zusätzlich umhüllenden, außerdem mit einem Kragen versehenen Rohres, noch einer das Vortriebsrohr mit der Ramme zur Vermeidung von Prallschlägen kuppelnden Spanneinrichtung.According to the invention, this object is achieved in that the rear end of the ram is preferably positively connected to the rear end of the jacking tube in the direction of advance, for which purpose the rear end of the ram can advantageously be provided with a tapering approach to the direction of advance. Due to the connection according to the invention of the thickened rear end of the ram or the ram housing with the rear end of the jacking tube, the thrust of the ram is introduced directly, ie without deflection as jacking force into the jacking tube. This does not require a tube which additionally envelops the ram and is also provided with a collar, or a tensioning device which couples the jacking tube to the ram in order to avoid impact impacts.

Durch ein Verbindungsstück, wie einen Rammkegel oder ein Rammsegment, zwischen dem Ansatz und dem Vortriebsrohr läßt sich das durch den Ansatz verdickte rückwärtige Ende der Ramme an unterschiedliche Rohrdurchmesser anpassen; es brau­chen lediglich ein oder mehrere dem Innendurchmesser des Vortriebsrohres entsprechende Verbindungsstücke auf den Rammansatz aufgeschoben zu werden.By means of a connecting piece, such as a ram cone or a ram segment, between the extension and the jacking pipe, the rear end of the ram, thickened by the extension, can be adapted to different pipe diameters; it is only necessary to push one or more connecting pieces corresponding to the inside diameter of the jacking pipe onto the ramming attachment.

Die Erfindung wird nachfolgend anhand eines in der Zeich­nung dargestellten Ausführungsbeispiels des näheren erläu­tert. In der Zeichnung zeigen:

  • Fig. 1 im Längsschnitt eine erfindungsgemäß über einen Ansatz am rückwärtigen Ende der Ramme mit dem hinteren Ende des Vortriebsrohres verbundene In­nenramme und
  • Fig. 2 die Ramme gemäß Fig. 1 in einer Startgrube nach dem Ansetzen eines Folgerohrs an ein nahezu völ­lig in das Erdreich eingerammtes Vortriebsrohr.
The invention is explained below with reference to an embodiment shown in the drawing. The drawing shows:
  • Fig. 1 in longitudinal section an according to the invention via an attachment at the rear end of the ram connected to the rear end of the jacking tube and
  • Fig. 2 shows the ram according to Fig. 1 in a starting pit after attaching a follower pipe to a jacking pipe almost completely rammed into the ground.

In einem an seinem vorderen Ende einen Schneidschuh 1 aufweisendes Vortriebsrohr 2 ist eine Ramme 3 angeordnet, die mit ihrer konischen Schlagspitze 4 in einem Stützring 5 lagert. Das rückwärtige Ende der Ramme 3 besitzt einen sich in Richtung zur Schlagspitze 4 verjüngenden Ansatz 6 sowie ein auf den Ansatz 6 aufgeschobenes, als Rammkegel ausge­bildetes Verbindungsstück 7, so daß das rückwärtige Ende der Ramme 3 über den Ansatz 6 und den Rammkegel 7 mit dem hinteren Ende des Vortriebsrohres 2 verbunden ist.In a jacking tube 2 having a cutting shoe 1 at its front end, a ram 3 is arranged, which is supported with its conical striking tip 4 in a support ring 5. The rear end of the ram 3 has a tapering in the direction of the impact tip 4 approach 6 and a push-fit on the approach 6, formed as a ram cone 7, so that the rear end of the ram 3 over the approach 6 and the ram cone 7 with the rear End of the jacking pipe 2 is connected.

In Fig. 2 ist das Ansetzen eines Folgerohrs 2b an ein nahezu völlig in das Erdreich 8 eingerammtes Vortriebsrohr 2a dargestellt. Das Folgerohr 2b befindet sich in der dargestellten Ausgangslage in einer Startgrube 9 und stützt sich mittels auf Untergestellen 10 prismatisch angeordneter Stützrollen 11 auf einem Bodenrahmen 12 ab. Die Ramme 3 ist mit ihrem rückwärtigen Ende über den konischen Ansatz 6 und den zwischengeschalteten Rammkegel 7 formschlüssig mit dem in Richtung des Vortriebs hinteren Ende des Folgerohrs 2b verbunden.2 shows the attachment of a following pipe 2b to a jacking pipe 2a which is almost completely rammed into the soil 8. The following pipe 2b is in the starting position shown in a starting pit 9 and is supported on a base frame 12 by means of support rollers 11 arranged prismatically on bases 10. The rear end of the ram 3 is positively connected to the rear end of the follow-up tube 2b in the direction of propulsion via the conical extension 6 and the intermediate ram cone 7.

Ein nicht dargestellter, im Innern des Gehäuses der Ramme 3 wechselweise hin- und herbewegter, gegebenenfalls mehrere Tonnen schwerer Schlagkolben überträgt seine Schlagenergie über den Ansatz 6 und den Rammkegel 7 auf das Folgerohr 2b und treibt dieses mit jedem Schlag weiter vor. Der Schlag­kolben wird in der Regel pneumatisch, hydraulisch oder mechanisch beaufschlagt. Im vorliegenden Fall wird Druck­luft von einem nicht dargestellten Kompressor über einen Luftschlauch 13 mit integriertem Umsteuerventil 14 in das Gehäuseinnere der Ramme 3 geleitet.A not shown, in the interior of the ram 3 reciprocating, possibly several tons heavy percussion piston transmits its impact energy via the extension 6 and the ram cone 7 to the following tube 2b and drives it forward with each stroke. The percussion piston is usually acted upon pneumatically, hydraulically or mechanically. In the present case, compressed air is passed from a compressor (not shown) via an air hose 13 with an integrated reversing valve 14 into the interior of the ram 3.

Claims (6)

1. Ramme zum Innen-Rammen von Rohren, dadurch gekenn­zeichnet, daß das rückwärtige Ende der Ramme (3) mit dem in Vortriebsrichtung hinteren Ende des Vortriebs­rohres (2) verbunden ist.1. ram for internal ramming of pipes, characterized in that the rear end of the ram (3) is connected to the rear end of the jacking pipe (2) in the direction of advance. 2. Ramme nach Anspruch 1, gekennzeichnet durch eine form­schlüssige Verbindung zwischen der Ramme (3) und dem Vortriebsrohr (2).2. ram according to claim 1, characterized by a positive connection between the ram (3) and the jacking pipe (2). 3. Ramme nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das rückwärtige Ende der Ramme (3) mit einem Ansatz (6) versehen ist.3. ram according to claim 1 or 2, characterized in that the rear end of the ram (3) is provided with a projection (6). 4. Ramme nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß sich der Ansatz (6) in Vortriebsrichtung verjüngt.4. ram according to one or more of claims 1 to 3, characterized in that the projection (6) tapers in the direction of advance. 5. Ramme nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß zwischen dem Ansatz (6) und dem Vortriebsrohr (2) ein oder mehrere Verbindungs­stücke (7) angeordnet sind.5. ram according to one or more of claims 1 to 4, characterized in that one or more connecting pieces (7) are arranged between the neck (6) and the jacking tube (2). 6. Ramme nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß zwischen deren Schlagspit­ze (4) und dem Vortriebsrohr (2) ein Stützring (5) angeordnet ist.6. A ram according to one or more of claims 1 to 5, characterized in that a support ring (5) is arranged between the striking tip (4) and the jacking tube (2).
EP19880118805 1987-12-07 1988-11-11 Tube-driving device Expired - Lifetime EP0319730B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3741373 1987-12-07
DE19873741373 DE3741373C1 (en) 1987-12-07 1987-12-07 Pipe ram

Publications (2)

Publication Number Publication Date
EP0319730A1 true EP0319730A1 (en) 1989-06-14
EP0319730B1 EP0319730B1 (en) 1991-04-10

Family

ID=6342013

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880118805 Expired - Lifetime EP0319730B1 (en) 1987-12-07 1988-11-11 Tube-driving device

Country Status (3)

Country Link
EP (1) EP0319730B1 (en)
JP (1) JPH01207595A (en)
DE (1) DE3741373C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202023101652U1 (en) 2023-03-31 2023-05-22 Erol Ludwig Device for creating foundation or pile holes and vehicle with this device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3905648A1 (en) * 1989-02-24 1990-08-30 Brochier Fa Hans Pipe ram
DE4103196C2 (en) * 1991-02-02 1994-06-09 Tracto Technik Drill
US8684104B1 (en) 2007-04-13 2014-04-01 Andrew J. Fisk, III Detachable pipe ramming head with efficient lubrication dispersal

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL3247C (en) * 1900-01-01
NL7907082A (en) * 1979-09-24 1981-03-26 Willem Frederik Heins Tubular pile-driving system - uses compressed air or hydraulic hammer inside pile
FR2502662A1 (en) * 1981-03-28 1982-10-01 Schmidt Paul TUBE THRESHING END

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6360397A (en) * 1986-08-28 1988-03-16 極東開発工業株式会社 Earth-moving device for burying piping
JPS6378999A (en) * 1986-09-22 1988-04-09 松坂貿易株式会社 Impact propulsion construction method and device for steel pipe
DE8707158U1 (en) * 1987-05-19 1987-07-30 Tracto-Technik Paul Schmidt Maschinenfabrik Gmbh, 5940 Lennestadt, De

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL3247C (en) * 1900-01-01
NL7907082A (en) * 1979-09-24 1981-03-26 Willem Frederik Heins Tubular pile-driving system - uses compressed air or hydraulic hammer inside pile
FR2502662A1 (en) * 1981-03-28 1982-10-01 Schmidt Paul TUBE THRESHING END

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202023101652U1 (en) 2023-03-31 2023-05-22 Erol Ludwig Device for creating foundation or pile holes and vehicle with this device

Also Published As

Publication number Publication date
JPH01207595A (en) 1989-08-21
DE3741373C1 (en) 1989-04-27
EP0319730B1 (en) 1991-04-10

Similar Documents

Publication Publication Date Title
ES8701415A1 (en) Double grip, relative motion tube puller.
DE19539412C2 (en) Reversible pneumatic sticking tool and method for its operation
DE2800743A1 (en) DEVICE FOR PULLING OUT LONG OBJECTS FROM A REFERENCE BODY
EP0319730B1 (en) Tube-driving device
EP0356666B1 (en) Boring ram for laying service lines without excavation
DE3603238C2 (en)
DE102009040475B3 (en) Method for trenchless introducing pipe into soil, involves applying longitudinal forces after introducing pipe, and directing longitudinal forces opposite to forces exerted for introducing pipe to compensate conditional extension of pipe
DE4308547C1 (en) Trenchless pipe laying system with hydraulic/pneumatic drive - has pipe sections joined by profiled sleeve and with ram on rear section and flushing head on front of pipeline
DE1573442A1 (en) Press for hydraulic testing of pipes
DE3925504C2 (en) Device for pulling out a tube embedded in solid material
US5238072A (en) Pipe rammer
DE10117963C2 (en) Device for inserting a pull rope into empty pipes
DE949555C (en) Push-in device on drawbars
DE3026861A1 (en) Pneumatic or hydraulic pile driver and extractor appliance - has coaxial holes in hammer plunger and striker head
EP0693331B1 (en) Device for coupling a conduit-pipe to a tube
DE2747174A1 (en) COMPRESSED AIR STRIKING
DE10323626A1 (en) Tool for extracting and destroying brittle underground pipe has a pulling element to remove the pipe by preset amounts and with two servo grips to hold and crush the exposed sections
DE1211046B (en) Device for the pre-assembly of cutting rings for pipe connections
DE563117C (en) Pipe bumper
EP0936029B1 (en) Device for placing blind rivet nuts
DE602120C (en) Method and device for loosening a multi-part, tapered ram damper in the transverse direction
DE44416C (en) Cold drawing machine for the production of tubes
DE1573442C (en) Press for hydraulic testing of pipes
DE2240967A1 (en) METHOD AND DEVICE FOR CREATING ADAPS OR TUNNELS FROM PREFABRICATED CONCRETE PIPES
DE3911469A1 (en) Drilling installation

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE CH FR GB IT LI NL

17P Request for examination filed

Effective date: 19890728

17Q First examination report despatched

Effective date: 19900601

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH FR GB IT LI NL

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO ROMA S.P.A.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19931028

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19931116

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19931130

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19931206

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19931220

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19941111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19941130

Ref country code: CH

Effective date: 19941130

Ref country code: BE

Effective date: 19941130

BERE Be: lapsed

Owner name: SCHMIDT PAUL

Effective date: 19941130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19950601

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19941111

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19950731

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051111