IL100126A - Method and apparatus for making drip irrigation devices - Google Patents

Method and apparatus for making drip irrigation devices

Info

Publication number
IL100126A
IL100126A IL10012691A IL10012691A IL100126A IL 100126 A IL100126 A IL 100126A IL 10012691 A IL10012691 A IL 10012691A IL 10012691 A IL10012691 A IL 10012691A IL 100126 A IL100126 A IL 100126A
Authority
IL
Israel
Prior art keywords
dripper
tube
extruded tube
unit
location
Prior art date
Application number
IL10012691A
Other languages
English (en)
Other versions
IL100126A0 (en
Original Assignee
Hydromatic Ltd
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
Priority to IL10012691A priority Critical patent/IL100126A/en
Application filed by Hydromatic Ltd filed Critical Hydromatic Ltd
Publication of IL100126A0 publication Critical patent/IL100126A0/xx
Priority to US07/971,037 priority patent/US5282916A/en
Priority to JP4327511A priority patent/JPH06209993A/ja
Priority to ZA928858A priority patent/ZA928858B/xx
Priority to AU28459/92A priority patent/AU656822B2/en
Priority to ES92630100T priority patent/ES2120997T3/es
Priority to DE69226507T priority patent/DE69226507D1/de
Priority to EP92630100A priority patent/EP0549515B1/fr
Priority to TR92/1129A priority patent/TR26590A/xx
Priority to CN92113458A priority patent/CN1031247C/zh
Priority to MX9206716A priority patent/MX9206716A/es
Publication of IL100126A publication Critical patent/IL100126A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61Joining from or joining on the inside
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/154Coating solid articles, i.e. non-hollow articles
    • B29C48/155Partial coating thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/157Coating linked inserts, e.g. chains
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/32Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/022Particular heating or welding methods not otherwise provided for
    • B29C65/028Particular heating or welding methods not otherwise provided for making use of inherent heat, i.e. the heat for the joining comes from the moulding process of one of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5324Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
    • B29C66/53241Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being tubular and said substantially annular single elements being of finite length relative to the infinite length of said tubular articles
    • B29C66/53242Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being tubular and said substantially annular single elements being of finite length relative to the infinite length of said tubular articles said single elements being spouts, e.g. joining spouts to tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00Tubular articles
    • B29L2023/22Tubes or pipes, i.e. rigid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/70Agricultural usage or equipment
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17Surface bonding means and/or assemblymeans with work feeding or handling means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • External Artificial Organs (AREA)
IL10012691A 1991-11-22 1991-11-22 Method and apparatus for making drip irrigation devices IL100126A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
IL10012691A IL100126A (en) 1991-11-22 1991-11-22 Method and apparatus for making drip irrigation devices
US07/971,037 US5282916A (en) 1991-11-22 1992-11-03 Method and apparatus for making drip irrigation devices
JP4327511A JPH06209993A (ja) 1991-11-22 1992-11-13 ドリップ灌注装置を作る方法及び装置
ZA928858A ZA928858B (en) 1991-11-22 1992-11-17 Method and apparatus for making drip irrigation devices.
AU28459/92A AU656822B2 (en) 1991-11-22 1992-11-18 Method and apparatus for making drip irrigation devices
ES92630100T ES2120997T3 (es) 1991-11-22 1992-11-19 Metodo y dispositivo para fabricar aparatos de irrigacion por goteo.
EP92630100A EP0549515B1 (fr) 1991-11-22 1992-11-19 Procédé et dispositif pour la fabrication d'éléments d'irrigation par égouttement
DE69226507T DE69226507D1 (de) 1991-11-22 1992-11-19 Verfahren und Vorrichtung zur Herstellung eines Tropfbewässerungsrohres
TR92/1129A TR26590A (tr) 1991-11-22 1992-11-20 Damlamali sulama tertibatlarini yapmak icin usul ve cihaz
CN92113458A CN1031247C (zh) 1991-11-22 1992-11-21 制造滴灌设备的方法和装置
MX9206716A MX9206716A (es) 1991-11-22 1992-11-23 Metodo y aparato para fabricar dispositivos de irrigacion por goteo.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IL10012691A IL100126A (en) 1991-11-22 1991-11-22 Method and apparatus for making drip irrigation devices

Publications (2)

Publication Number Publication Date
IL100126A0 IL100126A0 (en) 1992-08-18
IL100126A true IL100126A (en) 1994-11-28

Family

ID=11063085

Family Applications (1)

Application Number Title Priority Date Filing Date
IL10012691A IL100126A (en) 1991-11-22 1991-11-22 Method and apparatus for making drip irrigation devices

Country Status (11)

Country Link
US (1) US5282916A (fr)
EP (1) EP0549515B1 (fr)
JP (1) JPH06209993A (fr)
CN (1) CN1031247C (fr)
AU (1) AU656822B2 (fr)
DE (1) DE69226507D1 (fr)
ES (1) ES2120997T3 (fr)
IL (1) IL100126A (fr)
MX (1) MX9206716A (fr)
TR (1) TR26590A (fr)
ZA (1) ZA928858B (fr)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5676897A (en) * 1990-10-03 1997-10-14 Dermitzakis; Emmanuil Dripline duct with internally located emiters and manufacture process
GR1001008B (el) * 1990-10-03 1993-03-31 Emmanouil Dermitzakis Σταλακτοφόρος σωλήνας με εσωτερικά επικολλημένους σταλάκτες και μέ?οδος κατασκευής του.
FR2727890B1 (fr) * 1994-12-07 1997-01-24 Kertscher Sa E Procede de fabrication de tuyaux d'irrigation goutte-a-goutte
US6120634A (en) 1997-02-26 2000-09-19 Micro Irrigation Technologies, Inc. Method and apparatus for forming agricultural drip tape
US6179949B1 (en) * 1997-04-18 2001-01-30 Swisscab S.A. Method for manufacturing a drip irrigation tube and dripper unit therein
GR980100147A (el) 1998-04-27 1999-12-31 *�65tF fs@ K@*66 0� f9 6* θ θs@ 5@s s * f@ 5 @tf0@Ν υ # f@*0θs@st 9 tfuθυθ @s#9f0
IL124704A (en) * 1998-06-01 2002-04-21 Cohen Amir Method and apparatus for making dripper lines
ES2212175T3 (es) 1998-07-08 2004-07-16 Apswisstech S.A. Procedimiento de fabricacion de una tuberia de goteo y linea de fabricacion para su realizacion.
US6620278B1 (en) 2000-04-18 2003-09-16 Nelson Irrigation Corporation Drip tape manufacturing process
EP1208741A1 (fr) * 2000-11-27 2002-05-29 Thomas Electronique S.A. Ligne de fabrication d'un tuyau d'iirigation goutte-à-goutte et procédé pour la mise en oeuvre de cette ligne de fabrication
US7887664B1 (en) 2003-05-05 2011-02-15 The Toro Company Continuous molded emitter
US20060043219A1 (en) * 2004-09-02 2006-03-02 Moshe Raanan Drip irrigation pipe
WO2006105364A2 (fr) * 2005-03-31 2006-10-05 Rain Bird Corporation Emetteur d'egouttement
WO2007089839A2 (fr) * 2006-01-30 2007-08-09 The Toro Company Emetteur moule en continu
US7648085B2 (en) * 2006-02-22 2010-01-19 Rain Bird Corporation Drip emitter
KR100749640B1 (ko) 2006-04-12 2007-08-14 주식회사 서원양행 농업용 호스 제조장치
KR100748604B1 (ko) * 2007-02-14 2007-08-10 소재용 용수도관의 천공방법 및 그 방법에 의해서 형성된 분출공을갖는 용수도관
US20080199646A1 (en) * 2007-02-15 2008-08-21 Medtronic Vascular, Inc. Inline Particle Deposition Extrusion
US8628032B2 (en) 2008-12-31 2014-01-14 Rain Bird Corporation Low flow irrigation emitter
US8511586B2 (en) 2011-04-20 2013-08-20 Deere & Company Disc shaped regulated drip irrigation emitter
EP2714367A4 (fr) * 2011-06-02 2014-11-26 Active Exp Technologies Ltd Système et procédé d'alimentation à grande vitesse de goutteurs vers un tuyau d'irrigation en cours de fabrication
KR101170605B1 (ko) 2011-10-17 2012-08-02 전영태 점적 호스 제조 장치 및 방법
KR101153429B1 (ko) 2011-10-17 2012-06-07 전영태 점적 호스 제조 장치 및 방법
US20130248622A1 (en) 2012-03-26 2013-09-26 Jae Yung Kim Drip line and emitter and methods relating to same
US9877440B2 (en) 2012-03-26 2018-01-30 Rain Bird Corporation Elastomeric emitter and methods relating to same
US10440903B2 (en) 2012-03-26 2019-10-15 Rain Bird Corporation Drip line emitter and methods relating to same
US9485923B2 (en) 2012-03-26 2016-11-08 Rain Bird Corporation Elastomeric emitter and methods relating to same
US9894851B2 (en) 2012-06-18 2018-02-20 Maillefer Sa Method and system for manufacturing an irrigation pipe
US9872444B2 (en) 2013-03-15 2018-01-23 Rain Bird Corporation Drip emitter
US10285342B2 (en) 2013-08-12 2019-05-14 Rain Bird Corporation Elastomeric emitter and methods relating to same
USD811179S1 (en) 2013-08-12 2018-02-27 Rain Bird Corporation Emitter part
US10631473B2 (en) 2013-08-12 2020-04-28 Rain Bird Corporation Elastomeric emitter and methods relating to same
US9883640B2 (en) 2013-10-22 2018-02-06 Rain Bird Corporation Methods and apparatus for transporting elastomeric emitters and/or manufacturing drip lines
US10330559B2 (en) 2014-09-11 2019-06-25 Rain Bird Corporation Methods and apparatus for checking emitter bonds in an irrigation drip line
US10375904B2 (en) 2016-07-18 2019-08-13 Rain Bird Corporation Emitter locating system and related methods
US11051466B2 (en) 2017-01-27 2021-07-06 Rain Bird Corporation Pressure compensation members, emitters, drip line and methods relating to same
US10626998B2 (en) 2017-05-15 2020-04-21 Rain Bird Corporation Drip emitter with check valve
USD883048S1 (en) 2017-12-12 2020-05-05 Rain Bird Corporation Emitter part
US11985924B2 (en) 2018-06-11 2024-05-21 Rain Bird Corporation Emitter outlet, emitter, drip line and methods relating to same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905749A (en) * 1972-08-31 1975-09-16 Maruhachi Kasei Kogyo Kk Apparatus for preparing a synthetic floating pipe
US4191518A (en) * 1975-09-22 1980-03-04 Sumitomo Chemical Company, Limited Equipment for producing special pipes
IL86549A (en) * 1988-05-30 1991-04-15 Hydro Plan Eng Ltd Process and installation for producing a drip irrigation conduit
GR1001008B (el) * 1990-10-03 1993-03-31 Emmanouil Dermitzakis Σταλακτοφόρος σωλήνας με εσωτερικά επικολλημένους σταλάκτες και μέ?οδος κατασκευής του.
IL95972A (en) * 1990-10-12 1993-03-15 Naan Irrigation Systems Method and apparatus for producing pipes for drip irrigation

Also Published As

Publication number Publication date
EP0549515A1 (fr) 1993-06-30
AU656822B2 (en) 1995-02-16
EP0549515B1 (fr) 1998-08-05
US5282916A (en) 1994-02-01
DE69226507D1 (de) 1998-09-10
AU2845992A (en) 1993-05-27
ES2120997T3 (es) 1998-11-16
JPH06209993A (ja) 1994-08-02
ZA928858B (en) 1993-05-13
CN1074173A (zh) 1993-07-14
IL100126A0 (en) 1992-08-18
TR26590A (tr) 1995-03-15
CN1031247C (zh) 1996-03-13
MX9206716A (es) 1993-05-01

Similar Documents

Publication Publication Date Title
US5282916A (en) Method and apparatus for making drip irrigation devices
US4778642A (en) Sealant bead profile control
CA1234084A (fr) Methode et dispositif pour la production d'emballages en forme de sacs a renfort de capsulage et leur ensachage
US4750877A (en) Injection molding of a thin-walled elongated tubular product such as a catheter
US4392897A (en) Manufacturing process for channel seal
US4940500A (en) Filter medium forming system and process
US5123984A (en) Method and apparatus for forming ports in drip irrigation hose
EP2061702B1 (fr) Installation d'étiquetage
EP0344605A2 (fr) Procédé et installation de fabrication d'une conduite d'irrigation au goutte-à-goutte
EP0237746A2 (fr) Appareil de distribution d'adhésif
EP1006778B1 (fr) Procede et dispositif de fabrication d'un conduit d'irrigation au goutte a goutte
IL124071A (en) Method for manufacturing a drip irrigation tube and dripper unit used therein
WO1999062691A1 (fr) Procede et appareil pour former des canalisations a goutteurs
US4851067A (en) Method for producing a weather strip for an automobile
DE3532839A1 (de) Verfahren zum anbringen von trinkhalmen an verpackungsbehaeltern, sowie vorrichtung zur durchfuehrung des verfahrens
JPH02116539A (ja) 液体充填容器の製造方法及び装置
EP1516712B1 (fr) Procédé et dispositif d'extrusion-soufflage, et procédé pour la préparation d'une feuille adhésive sensible à la pression
DE10324749A1 (de) Verfahren und Vorrichtung zum Herstellen von Verpackungsbehältern
WO2020201225A2 (fr) Transport d'une feuille tubulaire, installation pour feuilles soufflées et procédé de production d'une feuille
CN101456248B (zh) 与挤出工具有关的装置和方法
US5570977A (en) Fluid conveyor for articles
US3439798A (en) Multipack carrier
US4146418A (en) Process for labelling deep-drawn cups
EP2269792B1 (fr) Dispositif de séparation et de transport d'une partie dosée de matière dans une installation pour le façonnage d'articles par moulage par compression
EP1563914A1 (fr) Procédé et dispositif pour réaliser un marquage tactile

Legal Events

Date Code Title Description
CO Opposition cancelled (oppos. filed against grant of patent)

Free format text: OPPOSITION CANCELLED ON 28.08.95

MM9K Patent not in force due to non-payment of renewal fees