[go: up one dir, main page]

EP0562498A1 - Pompe pour matières épaisses munie de cylindres refoulants, en particulier pompe à béton bi-cylindre - Google Patents

Pompe pour matières épaisses munie de cylindres refoulants, en particulier pompe à béton bi-cylindre Download PDF

Info

Publication number
EP0562498A1
EP0562498A1 EP93104594A EP93104594A EP0562498A1 EP 0562498 A1 EP0562498 A1 EP 0562498A1 EP 93104594 A EP93104594 A EP 93104594A EP 93104594 A EP93104594 A EP 93104594A EP 0562498 A1 EP0562498 A1 EP 0562498A1
Authority
EP
European Patent Office
Prior art keywords
control slide
thick
thick matter
flow openings
delivery
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
EP93104594A
Other languages
German (de)
English (en)
Other versions
EP0562498B1 (fr
Inventor
Friedrich Dipl.-Ing. Schwing
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.)
Friedrich Wilhelm Schwing GmbH
Original Assignee
Friedrich Wilhelm Schwing 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6454845&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0562498(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Friedrich Wilhelm Schwing GmbH filed Critical Friedrich Wilhelm Schwing GmbH
Publication of EP0562498A1 publication Critical patent/EP0562498A1/fr
Application granted granted Critical
Publication of EP0562498B1 publication Critical patent/EP0562498B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/02—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having two cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0019—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers
    • F04B7/0026—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers and having an oscillating movement
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps
    • Y10S417/90—Slurry pumps, e.g. concrete

Definitions

  • the invention relates to a thick matter pump with delivery cylinders, in particular a two-cylinder concrete pump according to the preamble of claim 1.
  • the thick matter pumps according to the invention suck the thick matter from a prefilling container and then press the sucked thick matter through the control slide into the delivery line.
  • the invention preferably relates to two-cylinder concrete pumps in which the delivery cylinders alternate with one another in such a way that each delivery stroke of one cylinder corresponds to an intake stroke of the other cylinder and the delivery and intake games of both cylinders overlap each other .
  • the invention does not rule out that the new thick matter pump has, in addition to the delivery cylinders, one or more so-called compensating cylinders which cooperate with the aforementioned delivery cylinders in a predetermined rhythm in order to bridge the delivery breaks.
  • Such thick matter pumps presuppose that the inlet opening of the control slide on the wall of the prefilling container assigned to it seals the thick matter flow openings of the cylinders present in each case, in order to pressurize the thick matter in direct the delivery line; in this phase, on the other hand, the control slide must open the thick material flow opening of the feed cylinder to the prefilling container, which is to be filled with thick material from the prefilling container by suction for the following conveying stroke. In two-cylinder thick matter pumps, this results in a reciprocating movement of the control slide between two end positions, in which the inlet opening moves along an arc of a segment of a circle on the wall of the prefilling container, at which the thick matter flows from the thick matter flow openings into the delivery line.
  • Two-cylinder thick matter pumps are known in which the delivery cylinder openings are identical to the thick matter flow openings and therefore open directly on the described wall of the prefilling container.
  • the thick material flow openings are therefore circular.
  • the inlet opening of the control slide is also circular and corresponds not only with regard to this cross-sectional shape, but also with regard to its area to the same thick matter flow openings. Due to the design-related distance between the delivery cylinders, a web is formed on the wall of the prefilling container between these openings, on which the inlet opening of the control slide seals during its circular segment-shaped path between the thick material flow openings. This web has the smallest possible width. This results from the requirement for a small center distance between the feed cylinders. This arises from the practical need for narrow-build thick matter pumps, which, among other things, serve as concrete pumps between the parallel main beams of a truck chassis are to be installed.
  • this known structure has other advantages.
  • the narrower the web the smaller the pivoting angle of the control spool.
  • the swivel path to be measured here is then short. This results in short switching times and comparatively little wear on the moving and fixed parts.
  • a disadvantage is that the inlet opening of the control slide on the narrow web is not completely covered and sealed. As a result, there is an open connection between the inlet opening of the control slide and the prefill container during the movement of the control slide into its end positions. This causes a short circuit between the delivery line and the prefilling container, which leads to an uneven delivery of the thick matter through the delivery line and to a deterioration in the volumetric efficiency of the pump.
  • two-cylinder pressure pumps are known, from which the invention is based.
  • the feed cylinder openings open onto the wall of the prefilling container, so that the thick matter flow openings are circular, the inlet opening of the control slide also having the circular outline and the same area as the thick matter flow openings below them.
  • the control slide has slide plates on both sides of its inlet opening, which increase the area with which the control slide moves on the prefilling container wall. After reaching the At the end of a pump stroke, the control spool is switched from one end position to the other.
  • the aforementioned slide plates close the openings of both delivery cylinders, while on the other hand the inlet opening of the control slide seals on the surface between the outlet openings of the delivery cylinders. This prevents short circuits.
  • the thick material flows through spacer tubes in which they are deformed, it is possible that the thick material flow openings on the wall of the prefilling container deviate from the circular shape given by the feed cylinder. Since, according to the invention, these deviations consist in a shortening of the inside diameter of the thick material flow openings formed by the spacer tubes on the web, the web is narrowed, even with an essentially positive overlap, the Diameter reduction of the spool inlet opening is adapted to the web. This results in a shorter swivel movement with a shorter switching time. Therefore, the invention has the advantage that, with a substantially positive overlap, besides reducing wear and shortening the switching times, it also enables the center distance of the delivery cylinders to be reduced, which, among other things, reduces the installation problems of mobile thick matter pumps.
  • Another embodiment of the invention which is the subject of claim 4, dispenses with parabolic cross-sectional shapes in favor of contours of the cross-section composed of essentially rectilinear and rounded segments. This results in continuous outline shapes, which have an advantageous effect on the seal.
  • the positive coverage is determined from the cross-sectional shape of the openings and the width of the web if no additional measures are taken on the control slide. This is the subject of claim 5. While it has generally been assumed until now that the open short circuit due to the positive overlap is only avoided if the web ensures a complete support of the seal of the inlet opening by its dimensioning, at least for concrete, that applies this is not necessary for practical reasons. In fact, an open short circuit is avoided even if residual gaps remain between the sealing surface of the inlet opening and the web edges, provided, however, that these residual gaps are not larger than what was stated in claim 6, for example. In this way it is possible to further reduce the swivel angle and the switching time without having to put up with unpleasant short circuits.
  • Fig. 1 it is a two-cylinder piston pump for conveying concrete.
  • the two delivery cylinders 1, 2 have a piston 3 on a piston rod 4 as a displacer.
  • the cylinder 2 conveys the thick material previously sucked from a prefilling container 6 into the delivery line 7 through its outlet opening 22 according to the arrows indicated.
  • the piston (not shown) in the cylinder 1 moves in the opposite direction and thereby sucks the concrete out of the prefilling container 6 at.
  • a control slide 11 determines the respective direction of the thick matter flow.
  • the control slide 11 is permanently connected with its outlet opening 8 to the pump-side end 9 on the delivery line 7 and is seated in a tubular rotary connection 10 (FIG. 4).
  • the control slide is a generally S-shaped curved swivel tube 11 and has an inlet opening 12.
  • the inlet opening 12 is surrounded by a seal 14 which seals on the rear wall 15 of the prefilling container.
  • the thick material flow openings 16, 17 open, through which the thick material enters the suction cylinder 1 and exits the conveying cylinder 2, depending on the conveyance play.
  • the thick material flow openings 16 and 17 and the inlet opening 12 of the control slide 11 have the same contours and surface areas. This ensures an undisturbed flow of the thick matter.
  • the central axes 18, 19 of the feed cylinders lie on a partial arc 20 around the pivot center 21 of the control slide 11, which is the center of the control slide outlet opening 8.
  • the distance between the delivery cylinder center axes 18 and 19 corresponds to the arc angle ⁇ .
  • the thick material flow openings 16 and 17 are connected to the feed cylinder openings 22, 23 assigned to them by a spacer tube 24, 25 each.
  • the control slide 11 can, as shown in the example of the spacer tube 25 in the lower illustration in FIG. 1, be aligned in one of its end positions with one of the thick material flow openings 16, 17 such that the inlet opening 12 of the control slide 11 with the relevant thick material flow opening 16 or 17 covered. The oscillating movement required for this takes place via the arc angle ⁇ .
  • the respective thick material flow is deflected by the shape of the spacer tubes 24, 25 diverging from the delivery cylinders 1, 2, so that there is a shift of points 18 and 19 to points 30 and 31.
  • the clear diameter is reduced so much that there is flattening 32, 33 of the outline 331, 321 of the thick material flow openings 16, 17 lying on the web. This reduction in diameter also lies on the web at the control slide inlet opening 12. As a result, the web edges essentially fall together with the flattenings 32, 33 and the respective flattenings of the control slide inlet opening 12.
  • control slide inlet opening is shown in dash-dot lines at 35. It corresponds to an oval cross-section, the longer cross-sectional axis 36 of which lies on a radius R around the pivot center 21. The shorter axis intersects the pitch circle 20 as a secant and is therefore also on the web.
  • the size of the area of the web 29 between the thick material flow openings 16 and 17 of the spacer pipe sections 24, 25 with the cross section thereof is the same as the thick material flow openings 16 and 17.
  • the length of the distance tube sections 24, 25 is dimensioned such that an optimization of the deformation resistance of the thick material from the circular cross-sectional shape 27, 28 of the feed cylinders 1, 2 occurs in the outline shape 331, 321 of the thick material flow openings 16, 17.
  • the area size of the thick material flow openings 16, 17 essentially corresponds to the area size of the feed cylinders 1, 2, which is not a requirement, however.
  • the outline shape of the openings 16, 17 or 12 is selected using the example of the opening 12 according to the dashed line 37.
  • the reduction in diameter on the web in turn leads to a reduction in the diameter, in the exemplary embodiment to a flattening of the outline, which is shown at 32 and 33.
  • These flattenings are essentially in the direction of a radius r around the pivot center 21.
  • the two flattenings 32, 33 are essentially connected by arches 38, 39 curved according to radii.
  • the size of the land area is reduced in such a way that in the central position of the control slide 11 there are gaps 40, 41 on the flattened areas, which produce a residual negative overlap.
  • gaps also occur in the embodiment according to FIG. 2, which is also labeled 40 and 41 there.
  • These gaps are, however, chosen so that their maximum size is of the order of half the average grain size of the thick matter.
  • control slide has widenings in the form of control slide plates 43, 44 on both sides of the opening. This makes it possible that in the drawn end position of the control slide 11, the plate 43 only opens the thick material flow opening 16 of the spacer tube 25 on the feed cylinder 2 when the inlet opening 12 covers the flow opening 17 of the spacer tube 24 on the feed cylinder 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP93104594A 1992-03-24 1993-03-20 Pompe pour matières épaisses munie de cylindres refoulants, en particulier pompe à béton bi-cylindre Revoked EP0562498B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4209471A DE4209471A1 (de) 1992-03-24 1992-03-24 Dickstoffpumpe für Förderzylindern, insbesondere Zweizylinderbetonpumpe
DE4209471 1992-03-24

Publications (2)

Publication Number Publication Date
EP0562498A1 true EP0562498A1 (fr) 1993-09-29
EP0562498B1 EP0562498B1 (fr) 1996-01-03

Family

ID=6454845

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93104594A Revoked EP0562498B1 (fr) 1992-03-24 1993-03-20 Pompe pour matières épaisses munie de cylindres refoulants, en particulier pompe à béton bi-cylindre

Country Status (11)

Country Link
US (1) US5380174A (fr)
EP (1) EP0562498B1 (fr)
JP (1) JPH0642453A (fr)
KR (1) KR100298499B1 (fr)
CN (1) CN1033289C (fr)
AT (1) ATE132580T1 (fr)
BR (1) BR9301287A (fr)
CA (1) CA2092397A1 (fr)
DE (2) DE4209471A1 (fr)
ES (1) ES2089617T3 (fr)
GR (1) GR3019136T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7407022B2 (en) 2004-07-27 2008-08-05 Clarke Uk, Ltd. Apparatus for pumping drill cuttings and dual cylinder positive displacement pump for moving drill cuttings and method of use

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19724504A1 (de) * 1997-06-11 1998-12-17 Schwing Gmbh F Zweizylinderdickstoffpumpe
US6857861B2 (en) 2002-05-15 2005-02-22 Kennametal Inc. Ring for concrete pump
DE102004009363B4 (de) * 2004-02-26 2008-01-24 Schwing Gmbh Kolben-Dickstoffpumpe
DE102004015416A1 (de) * 2004-03-26 2005-10-13 Putzmeister Ag Vorrichtung und Verfahren zur Steuerung einer Dickstoffpumpe
WO2007111689A2 (fr) * 2005-11-08 2007-10-04 Good Earth Tools, Inc. Bagues d'etancheite pour pompes a boue abrasive
CN100392247C (zh) * 2006-04-25 2008-06-04 甄继 可实现连续出料的混凝土泵送方法及混凝土泵送装置
CN101782054A (zh) * 2010-03-10 2010-07-21 北京中矿环保科技股份有限公司 一种膏体输送泵
US8827657B1 (en) * 2014-01-15 2014-09-09 Francis Wayne Priddy Concrete pump system and method
US9765768B2 (en) * 2014-01-15 2017-09-19 Francis Wayne Priddy Concrete pump system and method
CN103821688B (zh) * 2014-01-20 2016-04-06 三一汽车制造有限公司 一种泵送机构、泵送控制方法及混凝土泵送设备
US10001114B1 (en) * 2017-03-28 2018-06-19 Jessop Initiatives LLC Continuous flow pumping system
CA3103068C (fr) 2018-06-26 2024-06-25 Zhejiang Vimgreen Pharmaceuticals, Ltd Derives de triazolotriazine en tant qu'antagonistes du recepteur a2a
CN110409833B (zh) * 2019-07-16 2021-04-02 江西鑫通机械制造有限公司 一种湿喷机的控制方法
CN117533791B (zh) * 2024-01-10 2024-04-30 中斯峰然建设有限公司 一种低能耗道路施工物料输送装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2282545A1 (fr) * 1974-08-21 1976-03-19 Sterling Winthrop Group Ltd Pompe de distribution a mouvement alternatif pour distributeurs de savon
EP0016410A1 (fr) * 1979-03-14 1980-10-01 Friedrich Wilh. Schwing GmbH Pompe pour matières visqueuses, notamment pompe à béton
EP0024343A1 (fr) * 1979-08-16 1981-03-04 Friedrich Wilh. Schwing GmbH Pompe pour la distribution de matières visqueuses, notamment pour béton

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1214842A (en) * 1967-10-11 1970-12-02 Winget Ltd Reciprocating concrete pump
US3920357A (en) * 1974-03-13 1975-11-18 Case Co J I Pumping apparatus
AR206931A1 (es) * 1974-08-24 1976-08-31 Schwing Gmbh F Bomba a pistones con cilindros multiples para el transporte de hormigon
DE2632816C2 (de) * 1976-07-21 1982-07-29 Friedrich Wilh. Schwing Gmbh, 4690 Herne Abdichtvorrichtung für eine Doppelzylinderpumpe, insbesondere für die Förderung von Beton
GB1585794A (en) * 1977-07-05 1981-03-11 Relf D Reciprocating pumps
US4343598A (en) * 1980-03-14 1982-08-10 Friedrich Wilh. Schwing Gmbh Viscous material pump, particularly for concrete
DE3304985A1 (de) * 1983-02-12 1984-08-23 Rudolf Ing. Riker (grad.), 8940 Memmingen Pumpeneinheit fuer schwerfliessende stoffe, etwa beton
DE3419832A1 (de) * 1984-05-26 1985-11-28 Karl Dipl.-Ing. 7000 Stuttgart Schlecht Rohrweiche einer dickstoff, insbesondere beton foerdernden doppelkolbenpumpe
DE4120466A1 (de) * 1990-07-03 1992-01-09 Putzmeister Maschf Materialaufgabebehaelter fuer zweizylinder-dickstoffpumpen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2282545A1 (fr) * 1974-08-21 1976-03-19 Sterling Winthrop Group Ltd Pompe de distribution a mouvement alternatif pour distributeurs de savon
EP0016410A1 (fr) * 1979-03-14 1980-10-01 Friedrich Wilh. Schwing GmbH Pompe pour matières visqueuses, notamment pompe à béton
EP0024343A1 (fr) * 1979-08-16 1981-03-04 Friedrich Wilh. Schwing GmbH Pompe pour la distribution de matières visqueuses, notamment pour béton

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7407022B2 (en) 2004-07-27 2008-08-05 Clarke Uk, Ltd. Apparatus for pumping drill cuttings and dual cylinder positive displacement pump for moving drill cuttings and method of use

Also Published As

Publication number Publication date
DE4209471A1 (de) 1993-09-30
US5380174A (en) 1995-01-10
KR100298499B1 (ko) 2002-02-19
DE59301283D1 (de) 1996-02-15
JPH0642453A (ja) 1994-02-15
ES2089617T3 (es) 1996-10-01
CN1033289C (zh) 1996-11-13
CN1089691A (zh) 1994-07-20
ATE132580T1 (de) 1996-01-15
GR3019136T3 (en) 1996-05-31
EP0562498B1 (fr) 1996-01-03
KR930020016A (ko) 1993-10-19
BR9301287A (pt) 1993-09-28
CA2092397A1 (fr) 1993-09-25

Similar Documents

Publication Publication Date Title
EP0562498B1 (fr) Pompe pour matières épaisses munie de cylindres refoulants, en particulier pompe à béton bi-cylindre
EP1303700B1 (fr) Pompe a liquides epais
EP0808422B1 (fr) Procede et dispositif de transfert de beton ou d'autres liquides epais
EP0561262B1 (fr) Pompe pour matière épaisse ayant des cylindres, en particulier pompe à béton à deux cylindres
EP0861375B1 (fr) Procede et dispositif pour commander une pompe a liquides epais a deux cylindres
DE3007116A1 (de) Strassenmarkiermaschine mit verdraengerpumpen zur foerderung des markiermaterials
DE3042328C2 (de) Kolbenpumpe
DE3233854A1 (de) Pendelkolbenpumpe
DE19735091A1 (de) Zweizylinder-Dickstoffpumpe
EP0402390A1 (fr) Agencement de commande de pompes a double cylindre pour liquides epais.
DE69929923T2 (de) Axialkolbenpumpe und verbesserter Ventilplattenentwurf
DE3102506C2 (de) Kolbenpumpe mit geregelter Förderleistung
DE2634318A1 (de) Pumpe, vorzugsweise zum dosieren und kalibrieren
EP0016410B1 (fr) Pompe pour matières visqueuses, notamment pompe à béton
DE3219882A1 (de) Betonpumpe
EP0925450B1 (fr) Pompes a liquides epais
DE69303153T2 (de) Dickstoffpumpe mit einem Drehschieberarmatur
DE3045885C2 (de) Rohrverteiler für eine Hubkolbenpumpe
DE4224525C2 (de) Betonpumpe
DE1805972A1 (de) Betonpumpe
EP0485862B1 (fr) Pompe pour matière épaisse ayant un couple de cylindres aspirant et refoulant alternativement
DE4232215C2 (de) Schieberanordnung bei einer Betonpumpe
DE3118937C2 (de) Rohrverteiler für eine Hubkolbenpumpe
DD201929A5 (de) Vorrichtung zur foerderung von breiigen massen
DE4102682C2 (de) Dickstoffpumpe mit paarweise abwechselnd fördernden und ansaugenden Förderzylindern

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): AT BE DE ES FR GB GR IT

17P Request for examination filed

Effective date: 19940317

17Q First examination report despatched

Effective date: 19940410

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SCHWING GMBH

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE ES FR GB GR IT

REF Corresponds to:

Ref document number: 132580

Country of ref document: AT

Date of ref document: 19960115

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19960106

REF Corresponds to:

Ref document number: 59301283

Country of ref document: DE

Date of ref document: 19960215

ET Fr: translation filed
ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: BA2A

Ref document number: 2089617

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3019136

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SCHWING GMBH

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2089617

Country of ref document: ES

Kind code of ref document: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2089617

Country of ref document: ES

Kind code of ref document: T3

26 Opposition filed

Opponent name: PUTZMEISTER-WERK MASCHINENFABRIK GMBH

Effective date: 19961003

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: PUTZMEISTER AKTIENGESELLSCHAFT

Effective date: 19961003

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

Ref country code: GR

Payment date: 19980331

Year of fee payment: 6

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

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990331

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

Ref country code: GB

Payment date: 20010312

Year of fee payment: 9

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

Ref country code: FR

Payment date: 20010319

Year of fee payment: 9

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

Ref country code: BE

Payment date: 20010323

Year of fee payment: 9

Ref country code: AT

Payment date: 20010323

Year of fee payment: 9

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

Ref country code: ES

Payment date: 20010326

Year of fee payment: 9

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

Ref country code: DE

Payment date: 20010530

Year of fee payment: 9

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020320

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020320

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020321

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

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020331

BERE Be: lapsed

Owner name: *SCHWING G.M.B.H.

Effective date: 20020331

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

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021001

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

Effective date: 20020320

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

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021129

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030410

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

Effective date: 20050320

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

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

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 20050710