EP0655205A2 - Presse à fluide sous-pression en particulier presse hydraulique à oeillets pour perforer des bandes et fixer des oeillets renforcés autour du trou - Google Patents

Presse à fluide sous-pression en particulier presse hydraulique à oeillets pour perforer des bandes et fixer des oeillets renforcés autour du trou Download PDF

Info

Publication number: EP0655205A2
Authority: EP; European Patent Office
Prior art keywords: piston; pressure medium; pressure; line; flanging
Prior art date: 1993-11-10
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

EP94112951A

Other languages

German (de)

English (en)

Other versions

EP0655205A3 (fr

EP0655205B1 (fr

Inventor

Karl-Josef Kochs

Hubertus Thelen

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.)

William Prym GmbH and Co KG

Original Assignee

William Prym GmbH and Co KG

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.)

1993-11-10

Filing date

1994-08-19

Publication date

1995-05-31

1994-08-19 Application filed by William Prym GmbH and Co KG filed Critical William Prym GmbH and Co KG

1995-05-31 Publication of EP0655205A2 publication Critical patent/EP0655205A2/fr

1996-05-01 Publication of EP0655205A3 publication Critical patent/EP0655205A3/fr

1998-10-21 Application granted granted Critical

1998-10-21 Publication of EP0655205B1 publication Critical patent/EP0655205B1/fr

2014-08-19 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Images

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/08—Means for actuating the cutting member to effect the cut
- B26D5/12—Fluid-pressure means
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
- A41H37/00—Machines, appliances or methods for setting fastener-elements on garments
- A41H37/02—Setting hooks or eyes

Definitions

the invention is directed to a press of the type specified in the preamble of claim 1.
a press has two nested pistons which punch a hole in the web in a coordinated manner by means of a pressure medium control and then for fastening a flange which reinforces the hole produced at the edge Serve eyelet. These two operations are divided between the two pistons, which is why the outer piston, which is used for the flanging work on the eyelet, can be referred to as “flared piston”, while the other, inner piston carries out the punching work for the hole and therefore functions as a "cutting piston".
the known hydraulic eyelet press of this type (EP-OS 0 320 578) was satisfied with only a single pressure medium line, but a mechanical pressure medium control that was prone to failure had to be arranged in the axial region of the pistons.
This consisted of a profiled control rod arranged in a stationary manner in the cylinder housing, which had to protrude from the pressure chamber of the cylinder housing through a breakthrough in the flared piston having a defined hollow profile into the inner cylinder there.
the cutting piston working in the inner cylinder also required axial and radial bores for a specific pressure medium control. Inaccurate production or adjustment could easily lead to malfunctions.
the invention has for its object to develop a reliable, space-saving press of the type mentioned in the preamble of claim 1, which is characterized by a particularly fast operation. This is achieved according to the invention by the measures specified in the characterizing part of claim 1, which have special advantages. Because a first pressure medium line acts only on the end space located above the piston head of the flared piston, while a second line starting from the n rod space serves to discharge the pressure medium, a quick working stroke can be achieved. Through the time-limited activation of a pressure relief valve in the second pressure medium line, which acts as a return line, the punching of holes in the web can be carried out very effectively before the working stroke is then continued. By reversing the two pressure medium lines, a return stroke of both pistons can then be carried out again very quickly using the same pressure medium control.
the press according to the invention comprises a cylinder housing 10 with two nested pistons 20, 30, which have a different function to perform.
the outer piston 20, which is directly axially guided in the cylinder housing 10, is provided with a flanging tool 21 which interacts with a flanging counter tool 22 in order to carry out a flanging work on an eyelet 40 best seen in FIGS. 5 and 6.
This piston 20 will therefore be referred to in the following for short as "flared piston".
the flaring piston 20 has in its interior an inner cylinder 23 in which the other inner piston 30 mentioned is guided, but with a piston rod 34 protrudes from a cylinder cover 24 which closes the inner cylinder 23 at the bottom.
This piston 30 has the task of punching out a hole 44 to be described in more detail in a path 41, which is why this piston 30 will hereinafter be referred to as "cutting piston” for short.
the lower end of the piston rod 34 abuts a cutting tool 31, which interacts with a cutting counter tool 32 located on the opposite side of the path 41.
the cutting tool 31 is z. B. on the apparent from Fig. 1 a flange 35, held by the crimping tool 21, which in turn is attached to the cylinder cover 24.
the cylinder cover 24 is connected to the crimping piston 20 via a stopper part and closes the inner cylinder 23 from.
the cutting counter tool 32 is connected to the flanging counter tool 22 and belongs to a foot 12 of the press.
the cylinder housing 10 with the two pistons 20, 30 accommodated therein is located in a head 11 of the press.
This press head 11 is firmly connected to the press foot 12 and is part of this hydraulic eyelet press to be used as a hand-held device.
the web 41 to be processed with this press is placed in the initial position shown in FIG. 1 a between the press head 11 and the press foot 12 in such a way that the point 45 of the web 41 to be provided with the eyelet 40 is in alignment with the tools 21 on both sides, 31 on the one hand and 22, 32 on the other.
the eyelet 40 to be set preferably consists of two parts, namely an eyelet part 42 gripped by the flanging tool 31 and a disk part 43 opposed to it on the flanging counter tool 22. Both parts of the eyelet 40 have the task of 6 reinforcing the edge region 46 of the hole 44 cut in the web 41.
the crimping piston 20 has a piston head 25 which is guided in a sealed manner in the cylinder housing 10 and which divides the interior of the cylinder housing 10 into two separate pressure subspaces 15, 16. This initially includes an end space 15 located in front of the end region of the piston head 25, into which a first pressure medium line 13 opens. Below the piston head 25, namely in the rod area of the flanging piston 20, there is a rod chamber 16 which is connected to a second pressure medium line 14, best seen in FIG. 1 b. This rod space 16 is always connected via channels 17 to the inner cylinder 23 in the flaring piston 20, where the cutting piston 30 already described is located.
the cutting piston 30 is also provided with a head region 33 which is guided in a sealed manner in the inner cylinder of the flanging piston 20.
the press according to the invention also includes a special pressure medium control 50, of which a preferred embodiment is shown schematically in the circuit diagram of FIG. 7. Only some of the above-described components are shown therein, which are illustrated by corresponding reference numerals.
This pressure medium control 50 comprises a control block 51, preferably made of aluminum, which is highlighted by dashed lines and which is connected in terms of construction to the hand-operated eyelet press and in which the above-described pressure medium lines 13, 14 are continued as integrated channels up to a control element 53.
the control element 53 can be reversed between two positions and is referred to below for short as the “main control element”.
two lines 18, 19 continue as integrated channels and are finally, outside the control block 51, led as hoses to a pressure medium tank 52.
hydraulic oil is preferably used as the pressure medium.
One line 18 functions as a pressure medium supply line for the press and leads via an oil filter 37 to two supply line branches 18 '18' 'in which, as the pressure medium source, two pumps 38', 38 '' differing from one another are located.
One pump 38 ' is a high pressure pump with a delivery pressure of e.g. B. 90 bar and a relatively large flow of about 3.3 ccm.
the other pump 38 '' is a low pressure pump with a delivery pressure of e.g. B. 200 bar, but a small capacity of about 1 ccm.
Both pumps 38 ', 38' ' are operated by a common, preferably electric motor 39.
the two branches 18 ′, 18 ′′ have check valves 48 and are brought together again in the main control element 53 to form a common supply line 18.
the motor 39 is connected to the control block 51 together with the two pumps 38 ′, 38 ′′.
the other pressure medium line 19, which serves to discharge the pressure medium into the tank 52, also ends before the main control element 53.
a check valve 48 is also provided in this derivation 19 within the channel integrated in the control block 51.
the control members 53, 54 can be in the positions shown in the circuit diagram in FIG. 7. 7 shows the "resting position" of the main control element 53, determined by a return spring, where its control section 53 'ensures a crosswise connection of the lines on both sides, so the line 19 is connected to the first pressure medium line 13.
the flared piston 20 is, according to FIG. 1 a, in the upper reversal point of its lifting movement.
the pressure medium supply line 18 is connected to the second pressure medium line 14 via the main control element 53.
the derivation 19 is therefore connected to the rod chamber 16 located below the piston head 25 in the cylinder housing 10. This passage position is initially secured by the return springs provided in the secondary control member 54. In the exit point of the press, the pressure medium source 38 ', 38' 'can initially be stopped and only become effective when the press is triggered.
the working stroke of the flaring piston 20 begins, which is illustrated in the working diagram of FIG. 4 by the ascending branch 60 of the curve.
the abscissa there is a time scale that begins with the triggering of the press, while the ordinate, starting from the starting position in FIG. 1 a, describes the stroke path carried out by the flanging piston 20.
the flanging piston 20 moves downward together with the cutting piston 30 within the first time segment 61 shown in FIG. 4.
the volume in the rod chamber 16 of the cylinder housing 10 is reduced by the piston head 25 moving downward.
the pressure medium displaced there can, however, be returned to the tank 52 via the second pressure medium line 14 and, because the main control element 53 is switched to its “'working position' ', via the line 19.
This first time period 61 is run very quickly because of the double pressure medium source 38 ', 38' ', for which, according to FIG. B. 0.41 sec. Are sufficient.
both tools 21, 31 move downwards together via the two pistons 20, 30 until the intermediate position shown in FIGS.
the second time period 62 which then follows from FIG. 4, lasts only 0.06 sec in the exemplary embodiment shown and is used for hole cutting.
the secondary control element 54 is also reversed into its switching position, which is different from that in FIG. 7. This can e.g. B. done by a time-limited control that is effective during this period 62.
the result is that the secondary control element 54 is switched with its second control section 54 ′′ into the second pressure medium line 14 and thus causes a “blocking position” with respect to the further discharge of the pressure medium from the rod space 16 of the cylinder housing 10. This is because in this control section 54 ′′ In the sense of the pressure medium discharge, check valve 49, which acts as a blockage.
the secondary control member 54 After performing the punching work in the web district 47 according to FIG. 2 a, the secondary control member 54 is switched back to its previous "pass position", which is also done by the time-limited control. Then the first control section 54 ′ is again connected to the second pressure medium line 14. The same conditions then exist as existed previously in the first period 61 of FIG. 4. This manifests itself, according to FIG. 4, in a further rapid working stroke 29 of the flanging piston 20, as can be seen from the further increase in curve 60. 3 a and 3 b show the conditions which result at the end of this third time segment 63.
the flanging piston 20 can complete the further course of its working stroke 29 according to FIG. 3 a.
the above-described time limit for activating the pressure limiting valve 55 during the cutting process in the second time segment 62 of FIG. 4 can be derived in a particularly advantageous manner from the path of the flanging piston 20.
a trigger member 26 which is movable with the flanging piston 20 and to which a stationary switch 28 is assigned, is used.
the switch 28 is responsive to the passage of the trigger member 26 and activates the pressure relief valve 55 described above.
the response time of the switch 28, which determines the aforementioned time limit is determined by the length of the response path 65 of the switch 28 and the speed with which the trigger member 26 moves past. In the present case it is about an electrical switch 28, e.g. B.
the electrical switch 28 is effective by means of electrical control means (not shown in detail) only during the downward working stroke 29 of the flanging piston 20, but not when the special return stroke to be described in the sense of the arrow 59 shown in FIG the response path 65 already illustrated in FIG. 2 b is moved past.
the trigger member consists of a switching cam 26, which belongs to a switching rod 27 according to FIG. 2 b.
the switching rod 27 sits, as can be seen from FIG. 2 a, on the cylinder cover 24, which is firmly connected to the flare piston 20.
the shift rod 27 is aligned in the stroke movement direction 29 of the flaring piston and received in a longitudinally displaceable manner in an axial guide 57.
This axial guide 57 is also integrated in the cylinder housing 10 and thus also functions as a twist protection for the flanging piston 20 and thus the flanging tool 21 holding the eyelet part 42.
the switching cam 26 begins to move into the area of the magnetic switch 28.
the magnetic switch 28 is positioned in a fixed position in the cylinder housing 10. Its above-described response time results from the predetermined overall height 65 of this magnetic switch 28. In the sectional view of FIG. 2 a, the magnetic switch 28 is invisible, but its position is illustrated there by dashed lines.
the transition between the second and third time periods 62, 63 in the action diagram of FIG. 4 has been reached when the switching cam 26 emerges from the area of the magnetic switch 28 again below as the work stroke 29 continues.
the downward stroke 59 takes place through the already described components of the pressure medium control 50 according to the invention, as can be seen from the circuit diagram in FIG. 7. It is e.g. B. via a further time control, the main control element 53 is reset to the “rest position” shown in FIG. 7, where the already described first control section 53 ′ is again effective. In the meantime, however, the secondary control member 54 remains in its “passage position” for the pressure medium, which can be seen in FIG. 7 and has already been reached in the third time period 63 of FIG.
the front space 15 shown in FIG. 3 a is then connected to the return line 19 to the tank 52 via the first line 13, which then acts as a pressure medium discharge.
the above-described reversal of the main control element 53 for the fourth time period 64 takes place in a special way, namely by means of a pressure switch 66 illustrated in the circuit diagram in FIG. 7.
B. can be between 50 and 200 bar.
the pressure switch 66 responds to the pressure occurring in the end space 15 of the cylinder housing 10, which is illustrated in FIG. 7 by a connecting line 67 connected to the first pressure medium line 13.
the set limit pressure in the pressure switch 66 reliably signals that the crimping piston 20 has carried out the crimping work already described in connection with FIG. 3 a and gives it via an active electrical line 68 of FIG. 7 from an electrical reversal signal to the main control element 53.
the flanging piston 20 also takes the cutting piston 30 and its cutting tool 31 with it again via its flanging tool 21, until finally the starting position according to Fig. 1 a is reached.
the press has then completed its work cycle.
the motor 39 which drives the pumps 38 ', 38''is switched off automatically.
two further pressure limiting valves 71, 72 can be arranged in the control circuit of the supply and discharge lines 18, 19 for trouble-free operation. Both valves 71, 72 are adjustable to their limit pressure.
the limit pressure can be in the pressure relief valve 71, which is connected in a bypass line 69 between the pressure medium supply line 18 and the pressure medium discharge line 19, for. B. can be set between 100 and 200 bar.
the other pressure relief valve 72 is connected in a connecting line 70 between the pressure medium discharge line 19 on the one hand and the line branch 18 'having the low pressure pump 38' and can e.g. B. can be set to 90 bar.
the pressure medium tank 52 is provided with a filler neck 74 having a filter 73.

Landscapes

Engineering & Computer Science (AREA)
Life Sciences & Earth Sciences (AREA)
Forests & Forestry (AREA)
Mechanical Engineering (AREA)
Textile Engineering (AREA)
Press Drives And Press Lines (AREA)
Control Of Presses (AREA)
Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Treatment Of Fiber Materials (AREA)
Valve Housings (AREA)
Gear-Shifting Mechanisms (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Earth Drilling (AREA)

EP94112951A 1993-11-10 1994-08-19 Presse à fluide sous-pression en particulier presse hydraulique à oeillets pour perforer des bandes et fixer des oeillets Expired - Lifetime EP0655205B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE4338288A DE4338288A1 (de)	1993-11-10	1993-11-10	Druckmittelbetriebene Presse, insbesondere hydraulische Ösenpresse, zum Lochen von Bahnen und Setzen vondas Loch randseitig verstärkenden Ösen
DE4338288		1993-11-10

Publications (3)

Publication Number	Publication Date
EP0655205A2 true EP0655205A2 (fr)	1995-05-31
EP0655205A3 EP0655205A3 (fr)	1996-05-01
EP0655205B1 EP0655205B1 (fr)	1998-10-21

Family

ID=6502195

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP94112951A Expired - Lifetime EP0655205B1 (fr)	1993-11-10	1994-08-19	Presse à fluide sous-pression en particulier presse hydraulique à oeillets pour perforer des bandes et fixer des oeillets

Country Status (5)

Country	Link
EP (1)	EP0655205B1 (fr)
AT (1)	ATE172362T1 (fr)
DE (2)	DE4338288A1 (fr)
DK (1)	DK0655205T3 (fr)
ES (1)	ES2122111T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19751960C1 (de) *	1997-11-24	1999-01-07	Helmut Frey	Vorrichtung zum Entfernen von Ösen
CN104742179A (zh) *	2015-02-02	2015-07-01	上海理工大学	截断机用液压推进机构
CN113084916A (zh) *	2021-04-02	2021-07-09	盐城市格瑞特机械有限公司	一种液压摆臂式下料机

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19822210A1 (de) *	1998-05-18	1999-11-25	Kraemer & Grebe Kg	Lochstanze
CN102151748B (zh) *	2011-03-02	2012-11-07	浙江博雷重型机床制造有限公司	一种数控冲孔机床
ES1093205Y (es) *	2013-10-08	2014-02-11	Jopevi S L (100 0%)	Mecanismo neumático para la colocación de arandelas y ojetes
EP3510883B1 (fr) *	2018-01-12	2020-07-08	Franz Miederhoff oHG	Dispositif d'introduction d' illets dans une bâche textile ou plastique
CN110497498A (zh) *	2019-08-30	2019-11-26	王小改	一种巢框气眼安装装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3803698A (en) *	1972-07-11	1974-04-16	Textron Inc	Control system for assembling apparatus
DE3742418A1 (de) *	1987-12-15	1989-07-06	Johannes Than	Vorrichtung zum einstanzen von oesen in textil-, kunststoffplane oder dgl.
JPH0275433A (ja) *	1988-09-13	1990-03-15	Mitsubishi Heavy Ind Ltd	閉塞鍛造用復動ダイセット
JPH0616957B2 (ja) *	1989-10-05	1994-03-09	フガク工機株式会社	圧縮成形機におけるラムの昇降機構

1993
- 1993-11-10 DE DE4338288A patent/DE4338288A1/de not_active Withdrawn
1994
- 1994-08-19 ES ES94112951T patent/ES2122111T3/es not_active Expired - Lifetime
- 1994-08-19 EP EP94112951A patent/EP0655205B1/fr not_active Expired - Lifetime
- 1994-08-19 DE DE59407122T patent/DE59407122D1/de not_active Expired - Fee Related
- 1994-08-19 AT AT94112951T patent/ATE172362T1/de not_active IP Right Cessation
- 1994-08-19 DK DK94112951T patent/DK0655205T3/da active

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19751960C1 (de) *	1997-11-24	1999-01-07	Helmut Frey	Vorrichtung zum Entfernen von Ösen
WO1999026506A1 (fr)	1997-11-24	1999-06-03	Helmut Frey	Dispositif pour enlever des oeillets
US6450931B1 (en) *	1997-11-24	2002-09-17	Helmut Frey	Device for removing eyelets
CN104742179A (zh) *	2015-02-02	2015-07-01	上海理工大学	截断机用液压推进机构
CN113084916A (zh) *	2021-04-02	2021-07-09	盐城市格瑞特机械有限公司	一种液压摆臂式下料机

Also Published As

Publication number	Publication date
DE4338288A1 (de)	1995-05-11
EP0655205A3 (fr)	1996-05-01
DE59407122D1 (de)	1998-11-26
EP0655205B1 (fr)	1998-10-21
ES2122111T3 (es)	1998-12-16
ATE172362T1 (de)	1998-11-15
DK0655205T3 (da)	1999-06-28

Publication	Publication Date	Title
DE10031073B4 (de)	2016-11-24	Verfahren zum Vernieten
DE19525431C2 (de)	2000-02-03	Presse zum Stanzen von Löchern in ein Werkstück
DE1920184B2 (de)	1978-09-07	Vorrichtung zum gleichzeitigen und gleichmäßigen Bewegen mehrerer, durch Druckmittel betriebener Arbeitszylinder
EP3416783B1 (fr)	2020-02-12	Dispositif et procédé de conversion d'une force mécanique pour l'entraînement d'un dispositif de compression de raccords à compression
EP0655205A2 (fr)	1995-05-31	Presse à fluide sous-pression en particulier presse hydraulique à oeillets pour perforer des bandes et fixer des oeillets renforcés autour du trou
EP2229537B1 (fr)	2013-07-24	Dispositif d'entraînement hydraulique à deux chambres de pression, et procédé permettant de faire fonctionner un dispositif d'entraînement hydraulique à deux chambres de pression
DE202004000215U1 (de)	2004-04-01	Handgeführtes Preßgerät
DE4022159C2 (de)	1994-02-03	Vorrichtung zum Erzeugen eines Stufenfluiddruckes
DE3935498C2 (fr)	1991-09-05
DE1577246C3 (de)	1974-03-21	Sicherungseinrichtung für Arbeitsmaschinen
DE19652079C2 (de)	1999-02-25	Fluidbetriebenes Schlagwerk
DE29610911U1 (de)	1996-08-29	Mehrstufige fluidbetätigte Arbeitszylinderanordnung
EP0778110A2 (fr)	1997-06-11	Procédé pour la modification du mode de fonctionnement d'un mécanisme de percussion actionné par un fluide et mécanisme de percussion pour la mise en oeuvre du procédé
DE2804185A1 (de)	1978-08-10	Stossdaempfvorrichtung
EP0482141B1 (fr)	1994-01-05	Etancon hydraulique de mine, en acier
DE2909685A1 (de)	1980-09-25	Hydraulischer kraftverstaerker
DE2419190C3 (de)	1978-04-20	Pneumatisch-hydraulisches Blindnietgerät
DE102011001955B4 (de)	2020-01-23	Presswerkzeug mit einem Zusatzwerkzeug und Verfahren zur Betätigung eines Zusatzwerkzeugs eines Presswerkzeugs
DE69318935T2 (de)	1998-12-10	Hydraulisch angetriebener Bohrhammer
EP1523626B1 (fr)	2006-02-01	Cylindre hydraulique
DE2935439C2 (de)	1982-04-22	Antriebseinrichtung für Werkzeugschlitten von Draht- und Bandbiegeautomaten
DE1211071B (de)	1966-02-17	Hydraulischer Antrieb, insbesondere fuer Lochkartenstanzer
EP0232768A1 (fr)	1987-08-19	Pompe hydraulique manuelle pour le sertissage de cosses sur câbles, ou pour d'autres outils hydrauliques
EP0520255A1 (fr)	1992-12-30	Outil de travail hydraulique
DE2103016C3 (de)	1975-11-06	Druckluftschlagwerkzeug

Legal Events

Date	Code	Title	Description
1995-04-13	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
1995-05-31	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): AT BE CH DE DK ES FR GB IT LI LU NL PT SE
1996-03-15	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1996-05-01	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FR GB IT LI LU NL PT SE
1996-07-10	17P	Request for examination filed	Effective date: 19960517
1997-07-23	17Q	First examination report despatched	Effective date: 19970606
1998-02-06	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1998-03-31	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1998-04-01	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1998-04-01	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1998-06-23	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1998-09-04	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1998-10-21	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB IT LI LU NL PT SE
1998-10-21	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19981021
1998-10-21	REF	Corresponds to:	Ref document number: 172362 Country of ref document: AT Date of ref document: 19981115 Kind code of ref document: T
1998-10-30	REG	Reference to a national code	Ref country code: CH Ref legal event code: EP
1998-11-18	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 19981022
1998-11-26	REF	Corresponds to:	Ref document number: 59407122 Country of ref document: DE Date of ref document: 19981126
1998-12-16	REG	Reference to a national code	Ref country code: ES Ref legal event code: FG2A Ref document number: 2122111 Country of ref document: ES Kind code of ref document: T3
1999-01-29	REG	Reference to a national code	Ref country code: PT Ref legal event code: SC4A Free format text: AVAILABILITY OF NATIONAL TRANSLATION Effective date: 19981022
1999-02-12	ET	Fr: translation filed
1999-06-28	REG	Reference to a national code	Ref country code: DK Ref legal event code: T3
1999-08-19	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990819
1999-08-27	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1999-08-27	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1999-08-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990831 Ref country code: DK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990831 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990831
1999-10-13	26N	No opposition filed
2000-04-14	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
2000-05-01	REG	Reference to a national code	Ref country code: DK Ref legal event code: EBP
2000-05-02	EUG	Se: european patent has lapsed	Ref document number: 94112951.2
2002-01-01	REG	Reference to a national code	Ref country code: GB Ref legal event code: IF02
2003-06-25	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: PT Payment date: 20030625 Year of fee payment: 10
2003-06-27	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 20030627 Year of fee payment: 10
2003-06-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 20030630 Year of fee payment: 10
2003-07-01	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: AT Payment date: 20030701 Year of fee payment: 10
2003-07-04	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20030704 Year of fee payment: 10
2003-07-22	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 20030722 Year of fee payment: 10
2003-08-28	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: BE Payment date: 20030828 Year of fee payment: 10
2003-08-29	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: ES Payment date: 20030829 Year of fee payment: 10
2004-08-19	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: 20040819 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040819
2004-08-20	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: 20040820
2004-08-31	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: 20040831
2005-02-21	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: PT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050221
2005-02-28	BERE	Be: lapsed	Owner name: WILLIAM PRYM G.M.B.H. & CO. K.G. Effective date*: 20040831
2005-03-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050301 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050301
2005-04-13	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20040819
2005-04-29	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: 20050429
2005-04-29	REG	Reference to a national code	Ref country code: PT Ref legal event code: MM4A Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 20050221
2005-05-02	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee	Effective date: 20050301
2005-06-03	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
2005-08-19	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: 20050819
2005-11-16	REG	Reference to a national code	Ref country code: ES Ref legal event code: FD2A Effective date: 20040820
2007-12-31	BERE	Be: lapsed	Owner name: WILLIAM PRYM G.M.B.H. & CO. K.G. Effective date*: 20040831