ES2034803T3 - Procedimiento para la union de tubos de plastico de un sistema de tubo doble y una union de tubos, obtenida por el procedimiento. - Google Patents

Procedimiento para la union de tubos de plastico de un sistema de tubo doble y una union de tubos, obtenida por el procedimiento.

Info

Publication number
ES2034803T3
ES2034803T3 ES199090112728T ES90112728T ES2034803T3 ES 2034803 T3 ES2034803 T3 ES 2034803T3 ES 199090112728 T ES199090112728 T ES 199090112728T ES 90112728 T ES90112728 T ES 90112728T ES 2034803 T3 ES2034803 T3 ES 2034803T3
Authority
ES
Spain
Prior art keywords
procedure
tubes
joint
double tube
tube system
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.)
Expired - Lifetime
Application number
ES199090112728T
Other languages
English (en)
Inventor
Jorg Wermelinger
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.)
Georg Fischer AG
Original Assignee
Georg Fischer AG
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 Georg Fischer AG filed Critical Georg Fischer AG
Application granted granted Critical
Publication of ES2034803T3 publication Critical patent/ES2034803T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General 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
    • B29C66/51—Joining 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
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52298—Joining tubular articles involving the use of a socket said socket being composed by several elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12441—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being a single wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
    • B29C66/12469—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being asymmetric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General 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
    • B29C66/51—Joining 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
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General 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
    • B29C66/51—Joining 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
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General 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
    • B29C66/63—Internally supporting the article during joining
    • B29C66/636—Internally supporting the article during joining using a support which remains in the joined object
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/725—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being hollow-walled or honeycombs
    • B29C66/7252—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being hollow-walled or honeycombs hollow-walled
    • B29C66/72523—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being hollow-walled or honeycombs hollow-walled multi-channelled or multi-tubular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • F16L39/005—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies for concentric pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2024/00—Articles with hollow walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
    • B29L2031/601—Multi-tubular articles, i.e. composed of a plurality of tubes
    • B29L2031/602—Multi-tubular articles, i.e. composed of a plurality of tubes composed of several elementary tubular elements
    • B29L2031/603—Multi-tubular articles, i.e. composed of a plurality of tubes composed of several elementary tubular elements one placed inside the other, e.g. dual wall tubes
    • B29L2031/605—Multi-tubular articles, i.e. composed of a plurality of tubes composed of several elementary tubular elements one placed inside the other, e.g. dual wall tubes concentrically

Abstract

LOS TUBOS INTERIORES (2A, 2B) DE UN SISTEMA DE TUBO DOBLE, ESTAN CONECTADOS FIRMEMENTE CON UN MANGUITO (3) POR SOLDADURAS O ADHESIVOS. PARA MANTENER LOS TUBOS INTERIORES (2A, 2B), MEDIANTE MORDAZAS TENSORAS 84A, 4B), AL ORGANIZARSE LA CONEXION DE MANGUITO, SE FORMAN LOS TUBOS EXTERIORES 1A, 1B) MAS CORTOS EN EL ESPESOR DE AMBAS MORDAZAS TENSORAS (4A, 4B). PARA SOBREPASAR ESTA BRECHA, SE INTRODUCE EN LA CONEXION DE LOS TUBOS EXTERIORES (1A, 1B) UN ARO INTERMEDIO (9, 9A) MEDIANTE UN MANGUITO DE SOLDADURA ELECTRICA (7).
ES199090112728T 1989-07-07 1990-07-04 Procedimiento para la union de tubos de plastico de un sistema de tubo doble y una union de tubos, obtenida por el procedimiento. Expired - Lifetime ES2034803T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2538/89A CH679240A5 (es) 1989-07-07 1989-07-07

Publications (1)

Publication Number Publication Date
ES2034803T3 true ES2034803T3 (es) 1993-04-01

Family

ID=4236048

Family Applications (1)

Application Number Title Priority Date Filing Date
ES199090112728T Expired - Lifetime ES2034803T3 (es) 1989-07-07 1990-07-04 Procedimiento para la union de tubos de plastico de un sistema de tubo doble y una union de tubos, obtenida por el procedimiento.

Country Status (9)

Country Link
US (1) US5087308A (es)
EP (1) EP0406818B1 (es)
JP (1) JPH0786396B2 (es)
AT (1) ATE79936T1 (es)
AU (1) AU625506B2 (es)
CA (1) CA2020414C (es)
CH (1) CH679240A5 (es)
DE (1) DE59000272D1 (es)
ES (1) ES2034803T3 (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5184850A (en) * 1989-07-07 1993-02-09 Georg Fischer Ag Method of connecting pipes of plastics material of a double pipe system and a pipe connection made by the method
US5481456A (en) * 1990-09-04 1996-01-02 Fuji Jukogyo Kabushiki Kaisha Electronic control system having master/slave CPUs for a motor vehicle
US5402831A (en) * 1991-08-01 1995-04-04 Asahi/America, Inc. Restraint coupling assembly for double containment pipe system
US5868170A (en) * 1993-04-09 1999-02-09 Simona Ag Axial interlock system for fluid containment system having inner and outer conduits
US5494318A (en) * 1993-04-29 1996-02-27 Butts; Nicholas E. Secondary containment system
US5503192A (en) * 1993-06-08 1996-04-02 Nibco Inc. Inductive welding of thermoplastic pipe
US5419593A (en) * 1993-10-22 1995-05-30 Conley Corporation Interlocking union for double containment pipe
US5368338A (en) * 1993-10-22 1994-11-29 Conley Corporation Interlocking union system for double containment pipe
US5624140A (en) * 1993-11-15 1997-04-29 Enfield Industrial Corporation Double containment pipe fitting
US5433484A (en) * 1993-11-15 1995-07-18 Enfield Industrial Corporation Double containment pipe and fitting joint
GB2318543A (en) * 1996-10-28 1998-04-29 Glynwed Pipe Systems Ltd Dual wall electrofusion coupler
US5778872A (en) * 1996-11-18 1998-07-14 Medlis, Inc. Artificial ventilation system and methods of controlling carbon dioxide rebreathing
US6026862A (en) * 1997-02-14 2000-02-22 Ameron International Corporation Double containment pipe sections
SE511673C2 (sv) 1998-03-11 1999-11-08 Kungsoers Plast Ab Svetsmuff för sammankopppling av dubbelrörsledningar av plast
US6900417B2 (en) * 2001-09-06 2005-05-31 Sealand Technology, Inc. Hose heater
JP2009228699A (ja) * 2008-03-19 2009-10-08 Sanoh Industrial Co Ltd 二重管継手
CN201544465U (zh) * 2009-09-27 2010-08-11 曾贵贤 对熔电熔接驳机
JP7055826B2 (ja) * 2020-02-07 2022-04-18 中西商事株式会社 二重管構造体、サポート及び二重管構造体の形成方法
EP4194735A1 (de) * 2021-12-07 2023-06-14 Georg Fischer Rohrleitungssysteme AG Doppelrohrsystem

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3344491A (en) * 1966-08-10 1967-10-03 Tulon P Frederick Conduit coupling clamp
SU573363A1 (ru) * 1975-08-08 1977-09-25 Всесоюзный научно-исследовательский институт по строительству магистральных трубопроводов Способ сварки труб из термопластов встык
DE3029686C2 (de) * 1980-08-06 1982-09-16 Thyssen AG vorm. August Thyssen-Hütte, 4100 Duisburg Vorrichtung zur Herstellung zylindrischer Hohlkörper
NO824291L (no) * 1981-12-29 1983-06-30 Dainichi Nippon Cables Ltd Adhesiv og fremgangsmaate for sammenfoeyning av polyolefin-gjenstander ved anvendelse derav
DK198584A (da) * 1984-04-17 1985-10-18 Danske Gasvaerkers Tjaere Komp Plastroermuffe til sammenfoejning af to plastroerender
FR2572491B1 (fr) * 1984-10-31 1987-07-03 Aerospatiale Systeme pour la mise en communication individuelle avec l'exterieur de deux enceintes contigues et prothese cardiaque pourvue d'un tel systeme
US4718698A (en) * 1985-11-08 1988-01-12 R. W. Lyall & Company, Inc. Apparatus and method of forming fusion welded butt joint between thermoplastic pipe sections
US4695335A (en) * 1985-11-08 1987-09-22 R. W. Lyall & Company, Inc. Method for developing a predetermined fusing temperature in thermoplastic items
CH673432A5 (es) * 1987-09-23 1990-03-15 Fischer Ag Georg
CH678221A5 (es) * 1987-11-11 1991-08-15 Fischer Ag Georg

Also Published As

Publication number Publication date
JPH0786396B2 (ja) 1995-09-20
ATE79936T1 (de) 1992-09-15
US5087308A (en) 1992-02-11
CA2020414C (en) 1996-03-19
CH679240A5 (es) 1992-01-15
JPH04131589A (ja) 1992-05-06
CA2020414A1 (en) 1991-01-08
EP0406818A1 (de) 1991-01-09
EP0406818B1 (de) 1992-08-26
AU5873290A (en) 1991-01-10
AU625506B2 (en) 1992-07-16
DE59000272D1 (de) 1992-10-01

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