CA2008165A1 - Method of connecting plastic tubes using high frequency dielectric heating - Google Patents
Method of connecting plastic tubes using high frequency dielectric heatingInfo
- Publication number
- CA2008165A1 CA2008165A1 CA2008165A CA2008165A CA2008165A1 CA 2008165 A1 CA2008165 A1 CA 2008165A1 CA 2008165 A CA2008165 A CA 2008165A CA 2008165 A CA2008165 A CA 2008165A CA 2008165 A1 CA2008165 A1 CA 2008165A1
- Authority
- CA
- Canada
- Prior art keywords
- electrode
- high frequency
- plastic tubes
- connecting plastic
- dielectric heating
- 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
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
- B29C66/01—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
- B29C66/11—Joint 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
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- 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
- B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
-
- 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
- B29C66/11—Joint 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
- B29C66/114—Single butt joints
- B29C66/1142—Single butt to butt joints
-
- 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
-
- 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
- B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/731—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
- B29C66/7315—Mechanical properties
- B29C66/73151—Hardness
-
- 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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
-
- 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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/81262—Electrical and dielectric properties, e.g. electrical conductivity
- B29C66/81263—Dielectric properties
-
- 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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
- B29C66/8187—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the electrical insulating constructional aspects
- B29C66/81871—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the electrical insulating constructional aspects of the welding jaws
-
- 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
- B29C66/71—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 composition of the plastics material of the parts to be joined
-
- 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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/8122—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
-
- 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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/06—PVC, i.e. polyvinylchloride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
- B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/007—Hardness
Abstract
ABSTRACT OF THE DISCLOSURE
A method of connecting plastic tubes by high-frequency heating comprising preparing an electrode block having at least two electrode members each having annular bores aligned with each other, the electrode block including at least one insulator interposed between the electrode members, the insulator having a bore aligned with those of the electrode members, inserting an end portion of one tube into the one electrode member and an end portion of the other tube into another electrode member so that both tube ends keep contact with each other in the bore of the insulator, and applying a high frequency voltage between the electrode members.
A method of connecting plastic tubes by high-frequency heating comprising preparing an electrode block having at least two electrode members each having annular bores aligned with each other, the electrode block including at least one insulator interposed between the electrode members, the insulator having a bore aligned with those of the electrode members, inserting an end portion of one tube into the one electrode member and an end portion of the other tube into another electrode member so that both tube ends keep contact with each other in the bore of the insulator, and applying a high frequency voltage between the electrode members.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1282689A JP2554733B2 (en) | 1989-01-20 | 1989-01-20 | Resin tube joining method |
JP1-12826 | 1989-01-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2008165A1 true CA2008165A1 (en) | 1990-07-20 |
CA2008165C CA2008165C (en) | 1994-08-16 |
Family
ID=11816188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2008165 Expired - Fee Related CA2008165C (en) | 1989-01-20 | 1990-01-19 | Method of connecting plastic tubes using high frequency dielectric heating |
Country Status (5)
Country | Link |
---|---|
US (1) | US5093546A (en) |
EP (1) | EP0379380B1 (en) |
JP (1) | JP2554733B2 (en) |
CA (1) | CA2008165C (en) |
DE (1) | DE69023519T2 (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5213713A (en) * | 1991-03-21 | 1993-05-25 | The United States Of America As Represented By The Secretary Of The Navy | Process of shaping an electrorheological solid |
US5345070A (en) * | 1992-09-25 | 1994-09-06 | Cobe Laboratories, Inc. | Radio frequency tubing sealer |
US5792988A (en) * | 1996-01-15 | 1998-08-11 | The Whitaker Corporation | Radio frequency heat sealing of cable assemblies |
US5736719A (en) * | 1996-08-29 | 1998-04-07 | International Paper Company | Method and apparatus for heat sealing of packaging materials employing RF electric energy |
DE19718503A1 (en) * | 1997-05-02 | 1998-11-05 | Huels Chemische Werke Ag | Connection between tube and connection element made by means of HF welding |
US6048338A (en) * | 1997-10-15 | 2000-04-11 | Scimed Life Systems, Inc. | Catheter with spiral cut transition member |
US5891110A (en) * | 1997-10-15 | 1999-04-06 | Scimed Life Systems, Inc. | Over-the-wire catheter with improved trackability |
US6517515B1 (en) | 1998-03-04 | 2003-02-11 | Scimed Life Systems, Inc. | Catheter having variable size guide wire lumen |
US6113579A (en) * | 1998-03-04 | 2000-09-05 | Scimed Life Systems, Inc. | Catheter tip designs and methods for improved stent crossing |
US6264630B1 (en) | 1998-12-23 | 2001-07-24 | Scimed Life Systems, Inc. | Balloon catheter having an oscillating tip configuration |
US6623504B2 (en) | 2000-12-08 | 2003-09-23 | Scimed Life Systems, Inc. | Balloon catheter with radiopaque distal tip |
US7201763B2 (en) * | 2001-10-24 | 2007-04-10 | Boston Scientific Scimed, Inc. | Distal balloon waist material relief and method of manufacture |
EP1535340A1 (en) * | 2002-07-16 | 2005-06-01 | STMicroelectronics N.V. | Tfa image sensor with stability-optimized photodiode |
US7131553B2 (en) * | 2002-11-13 | 2006-11-07 | Sanders Stan A | Cellular reservoir flexible pressure vessel, apparatus and method for making same |
US7121423B2 (en) * | 2002-11-14 | 2006-10-17 | Sanders Stan A | Ovoid flexible pressure vessel, apparatus and method for making same |
US7744574B2 (en) * | 2004-12-16 | 2010-06-29 | Boston Scientific Scimed, Inc. | Catheter tip to reduce wire lock |
JP4696624B2 (en) * | 2005-03-23 | 2011-06-08 | 住友ベークライト株式会社 | High frequency dielectric heating electrode type |
US20090093794A1 (en) * | 2007-10-03 | 2009-04-09 | Tyco Healthcare Group Lp | Bolus tube assembly |
GB2533602B (en) | 2014-12-23 | 2020-11-11 | Jemella Ltd | Method and apparatus for manipulating the shape of hair |
JP6795189B2 (en) * | 2017-02-14 | 2020-12-02 | 精電舎電子工業株式会社 | High-frequency dielectric welding device for stepped tubes and high-frequency dielectric welding method for stepped tubes |
JP2020179556A (en) * | 2019-04-24 | 2020-11-05 | 前澤化成工業株式会社 | Structure and manufacturing method of same |
CN110370656B (en) * | 2019-07-17 | 2021-04-30 | 上海璞康医疗器械有限公司 | Device for welding micro-catheter by using heat-shrinkable tube |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE471426A (en) * | ||||
US2498383A (en) | 1945-10-31 | 1950-02-21 | Rca Corp | Electronic heating apparatus and method |
CH265794A (en) * | 1947-05-19 | 1949-12-31 | Lampes Sa | Method of local heating of a vitreous material. |
DE904334C (en) * | 1949-10-28 | 1954-02-18 | Lorenz C Ag | Device for connecting preferably cylindrical hollow bodies made of thermoplastic material by dielectric heating with simultaneous application of pressure |
CH337968A (en) * | 1955-08-20 | 1959-04-30 | Patelhold Patentverwertung | Device for dielectric heating of hose-like workpieces |
US3327086A (en) * | 1964-09-24 | 1967-06-20 | Cabot Corp | Radio frequency heating apparatus |
US3959058A (en) * | 1974-11-08 | 1976-05-25 | Plastronics, Inc. | Method and apparatus for butt-welding tubular plastic members to each other |
US4210479A (en) * | 1978-06-14 | 1980-07-01 | Baxter Travenol Laboratories, Inc. | Method for bonding a plastic tubing to a metal needle and the needle assembly formed thereby |
JPS5942920A (en) * | 1982-09-03 | 1984-03-09 | Kyoraku Co Ltd | Welding method of plastic members |
JPS5942921A (en) * | 1982-09-03 | 1984-03-09 | Kyoraku Co Ltd | Bonding method of tubular members made of synthetic resin |
SE436255B (en) * | 1983-01-04 | 1984-11-26 | Fiab System Ab | PROCEDURE FOR SUSPENSION OF PREFERRED RUBRICULAR BODIES END TO END AND A PROCEDURE FOR IMPLEMENTATION OF THE PROCEDURE |
JPS59178214A (en) * | 1983-03-30 | 1984-10-09 | Kyoraku Co Ltd | Welding method of plastic member |
JPS601495A (en) * | 1983-06-15 | 1985-01-07 | キヨ−ラク株式会社 | Method of joining synthetic resin tubular member |
JPS59232820A (en) * | 1983-06-15 | 1984-12-27 | Kyoraku Co Ltd | Welding method of plastic member |
JP2519497B2 (en) * | 1986-10-10 | 1996-07-31 | バクスター、インターナショナル、インコーポレイテッド | High-frequency sealing method for objects |
US4954678A (en) * | 1988-06-06 | 1990-09-04 | Engineering & Research Associates, Inc. | Annular RF sealer and method |
JPH0261381A (en) * | 1988-08-24 | 1990-03-01 | Hitachi Ltd | Oldham's coupling of scroll compressor |
-
1989
- 1989-01-20 JP JP1282689A patent/JP2554733B2/en not_active Expired - Fee Related
-
1990
- 1990-01-19 CA CA 2008165 patent/CA2008165C/en not_active Expired - Fee Related
- 1990-01-19 EP EP19900300564 patent/EP0379380B1/en not_active Expired - Lifetime
- 1990-01-19 US US07/468,476 patent/US5093546A/en not_active Expired - Lifetime
- 1990-01-19 DE DE1990623519 patent/DE69023519T2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0379380B1 (en) | 1995-11-15 |
CA2008165C (en) | 1994-08-16 |
US5093546A (en) | 1992-03-03 |
EP0379380A3 (en) | 1992-04-01 |
JPH02192929A (en) | 1990-07-30 |
DE69023519D1 (en) | 1995-12-21 |
EP0379380A2 (en) | 1990-07-25 |
DE69023519T2 (en) | 1996-05-15 |
JP2554733B2 (en) | 1996-11-13 |
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