CH489350A - Verfahren und Vorrichtung zum Verschweissen von thermoplastischen Werkstücken durch Schallenergie - Google Patents
Verfahren und Vorrichtung zum Verschweissen von thermoplastischen Werkstücken durch SchallenergieInfo
- Publication number
- CH489350A CH489350A CH844369A CH844369A CH489350A CH 489350 A CH489350 A CH 489350A CH 844369 A CH844369 A CH 844369A CH 844369 A CH844369 A CH 844369A CH 489350 A CH489350 A CH 489350A
- Authority
- CH
- Switzerland
- Prior art keywords
- acoustic energy
- welding thermoplastic
- thermoplastic workpieces
- workpieces
- welding
- Prior art date
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
- B29C66/80—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
- B29C66/8141—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81427—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
- B29C66/81429—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth comprising a single tooth
-
- 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
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
-
- 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
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
-
- 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
- B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
- B29C66/326—Shaping the burr, e.g. by the joining tool
-
- 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
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
-
- 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
- B29C66/739—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 material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—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 material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—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 material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
-
- 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
- B29C66/8141—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81431—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
-
- 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
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
-
- 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
- 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
- B29C66/814—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
- B29C66/8141—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81411—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
- B29C66/81421—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
- B29C66/81423—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US74231268A | 1968-07-03 | 1968-07-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH489350A true CH489350A (de) | 1970-04-30 |
Family
ID=24984311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH844369A CH489350A (de) | 1968-07-03 | 1969-06-03 | Verfahren und Vorrichtung zum Verschweissen von thermoplastischen Werkstücken durch Schallenergie |
Country Status (5)
Country | Link |
---|---|
US (1) | US3563822A (de) |
CH (1) | CH489350A (de) |
DE (1) | DE1929528C3 (de) |
FR (1) | FR2012214A1 (de) |
GB (1) | GB1264418A (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009002675A1 (de) * | 2009-04-27 | 2010-10-28 | Herrmann Ultraschalltechnik Gmbh & Co. Kg | Ultraschallsiegelvorrichtung und Verfahren zum Versiegeln von Materialbahnen |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3831459A (en) * | 1971-06-01 | 1974-08-27 | Caterpillar Tractor Co | Cluster gear assembly produced by friction welding |
US4647325A (en) * | 1984-07-12 | 1987-03-03 | Presto Products, Incorporated | Ultrasonic spot welding tip assembly and method for using the same |
US4572753A (en) * | 1984-07-12 | 1986-02-25 | The Coca-Cola Company | Method of ultrasonic welding and apparatus therefor |
US4690523A (en) * | 1985-07-03 | 1987-09-01 | Kenco Optics, Inc. | Monolithic reinforced eyeglass frame and friction welding method for manufacturing same |
US4726481A (en) * | 1986-08-01 | 1988-02-23 | Mckesson Corporation | Ultrasonically welded container and process |
US6340782B1 (en) * | 1989-10-04 | 2002-01-22 | Sca Hygiene Products Aktiebolag | Method of securing an elastic band and an article that includes such an elastic band |
FR2685887A1 (fr) * | 1992-01-03 | 1993-07-09 | Kaysersberg Packaging Sa | Procede de soudage par ultrasons et dispositif pour mettre en óoeuvre le procede. |
DE4206583C2 (de) * | 1992-03-03 | 1994-03-03 | Fraunhofer Ges Forschung | Verfahren und Vorrichtung zum Verbinden zweier themoplastischer Bauteile |
JPH08511709A (ja) * | 1993-06-25 | 1996-12-10 | ザ、プロクター、エンド、ギャンブル、カンパニー | 無孔破線を有する使い捨て訓練用パンツ |
DE19518936A1 (de) * | 1995-05-23 | 1995-12-21 | Christian Dr Ing Philipp | Verfahren zum Befestigen eines Teils an einer thermoplastischen Wand eines Erzeugnisses |
DE19531970A1 (de) * | 1995-08-30 | 1997-03-06 | Siemens Ag | Verfahren zur Herstellung einer Verbindung zwischen zumindest zwei elektrischen Leitern, von denen einer auf einem Trägersubstrat angeordnet ist |
JP4603122B2 (ja) * | 2000-02-23 | 2010-12-22 | 四国化工機株式会社 | 超音波シール装置 |
DE50207058D1 (de) * | 2001-04-21 | 2006-07-20 | Dynamit Nobel Kunststoff Gmbh | Sonotrode für eine Ultraschall-Schweissanlage |
WO2004067217A2 (en) * | 2003-01-30 | 2004-08-12 | Tac-Fast Systems Sa | Ultrasonic welding of resilient layers to plates |
CN1764586A (zh) * | 2003-05-15 | 2006-04-26 | 积水树脂株式会社 | 热可塑性树脂带的卷体的制造方法 |
FR2859409B1 (fr) * | 2003-09-08 | 2006-06-16 | Plastic Omnium Cie | Ensemble d'une piece d'aspect d'un vehicule automobile et d'une autre piece solidarisee a la piece d'aspect par fusion de matiere et procede d'assemblage de ces pieces |
DE102010016415A1 (de) * | 2010-04-09 | 2011-10-13 | Schunk Sonosystems Gmbh | Verfahren zum Verschweißen von flächigen Bauteilen |
EP3650705B1 (de) | 2015-12-28 | 2021-04-14 | Daikin Industries, Ltd. | Laufrad eines zentrifugalgebläses |
US11259694B2 (en) | 2019-01-31 | 2022-03-01 | Canon U.S.A., Inc. | Window assembly for endoscopic probe |
JPWO2021193828A1 (de) * | 2020-03-25 | 2021-09-30 | ||
CN114274518A (zh) * | 2021-12-17 | 2022-04-05 | 海鹰企业集团有限责任公司 | 一种利用磁致伸缩材料作为驱动源的超声波焊接探头 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2633894A (en) * | 1948-04-21 | 1953-04-07 | Raytheon Mfg Co | Plastic welding |
-
1968
- 1968-07-03 US US742312A patent/US3563822A/en not_active Expired - Lifetime
-
1969
- 1969-06-03 CH CH844369A patent/CH489350A/de not_active IP Right Cessation
- 1969-06-11 DE DE19691929528 patent/DE1929528C3/de not_active Expired
- 1969-06-24 GB GB1264418D patent/GB1264418A/en not_active Expired
- 1969-06-30 FR FR6922054A patent/FR2012214A1/fr not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009002675A1 (de) * | 2009-04-27 | 2010-10-28 | Herrmann Ultraschalltechnik Gmbh & Co. Kg | Ultraschallsiegelvorrichtung und Verfahren zum Versiegeln von Materialbahnen |
US8557071B2 (en) | 2009-04-27 | 2013-10-15 | Herrmann Ultraschalltechnik Gmbh & Co. Kg | Ultrasound welding device and method for welding material webs |
Also Published As
Publication number | Publication date |
---|---|
US3563822A (en) | 1971-02-16 |
DE1929528B2 (de) | 1970-07-16 |
DE1929528C3 (de) | 1971-03-11 |
DE1929528A1 (de) | 1970-02-05 |
FR2012214A1 (de) | 1970-03-13 |
GB1264418A (de) | 1972-02-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH489350A (de) | Verfahren und Vorrichtung zum Verschweissen von thermoplastischen Werkstücken durch Schallenergie | |
CH498719A (de) | Verfahren und Vorrichtung zum Verbinden von Schichtmaterialien | |
CH515748A (de) | Verfahren und Vorrichtung zum Sortieren von Gegenständen | |
DE1917389A1 (de) | Verfahren und Vorrichtung zum Erzeugen von Ausloeseimpulsen | |
CH507816A (de) | Verfahren und Vorrichtung zum Bearbeiten von Bogenlagen | |
CH502916A (de) | Verfahren und Vorrichtung zum Sammeln und Verpacken flacher Gegenstände | |
CH446818A (de) | Verfahren und Vorrichtung zum Verbinden zweier Platten an ihren Rändern | |
AT305577B (de) | Verfahren und Vorrichtung zum Herstellen von Bauelementen | |
CH463088A (de) | Verfahren und Vorrichtung zum Verbinden von Oberflächen von thermoplastischen Kunststoffen | |
AT312270B (de) | Verfahren und Vorrichtung zum Verschweißen von Hohlkörperteilen | |
AT273168B (de) | Verfahren und Vorrichtung zum Filtrieren | |
AT312916B (de) | Verfahren und Vorrichtung zum Herstellen von Folienspiegeln | |
DE1935572B2 (de) | Verfahren zum verbinden zweier streifen mit thermoplastischen oberflaechen mittels ultraschall und vorrichtung zum durch fuehren des verfahrens | |
CH492530A (de) | Verfahren und Vorrichtung zum Ausstanzen von Zuschnitten | |
AT306672B (de) | Verfahren und Vorrichtung zum Herstellen von geschichteten Bändern | |
CH445829A (de) | Verfahren und Vorrichtung zum Verschweissen oder Trennen von Kunststoffbahnen | |
CH462027A (de) | Verfahren und Vorrichtung zum Verpacken von Gegenständen | |
CH431037A (de) | Verfahren und Vorrichtung zum Trennschweissen von Kunststoff-Folien | |
AT295967B (de) | Verfahren und Vorrichtung zum Flämmen | |
CH494106A (de) | Verfahren und Vorrichtung zum Herstellen von Verbindungsnähten an thermoplastischen Folien | |
AT258090B (de) | Verfahren und Vorrichtung zum Herstellen einer Schweißverbindung | |
AT248200B (de) | Verfahren und Vorrichtung zum Schmieden scheibenförmiger Werkstücke | |
CH508502A (de) | Verfahren und Vorrichtung zum Waschen von Fahrzeugen | |
AT297650B (de) | Verfahren und Vorrichtung zum Perforieren von Vliesstoffen | |
CH492539A (de) | Verfahren und Vorrichtung zum Verschweissen von Kunststoffolien |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |