Extrusion blow molding method and article made thereby
A process for extrusion blow molding an article, and an extrusion blow-molded article, in which a solid radially outwardly extending flange (26) is blown into the tubular side wall (24) of the article. A circumferentially extending groove is formed in the inner surface of the mold that molds the tub...
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| creator | MARTIN, MICHAEL KENT CASE, MANSON DREW |
| description | A process for extrusion blow molding an article, and an extrusion blow-molded article, in which a solid radially outwardly extending flange (26) is blown into the tubular side wall (24) of the article. A circumferentially extending groove is formed in the inner surface of the mold that molds the tubular side wall of the article. A parison (58) of molten thermoplastic material is extruded and the parison is inflated by blowing to blow the parison against the walls of a mold (60). During inflation, the groove is filled by the molten thermoplastic material. The material that filled the groove forms a solid radially outwardly extending flange (26) molded to the tubular side wall (24) of the article. A portion (70) of the article extending above the flange is severed in a single cutting step to form an article having an outward flange at its top end. |
| format | Patent |
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A circumferentially extending groove is formed in the inner surface of the mold that molds the tubular side wall of the article. A parison (58) of molten thermoplastic material is extruded and the parison is inflated by blowing to blow the parison against the walls of a mold (60). During inflation, the groove is filled by the molten thermoplastic material. The material that filled the groove forms a solid radially outwardly extending flange (26) molded to the tubular side wall (24) of the article. A portion (70) of the article extending above the flange is severed in a single cutting step to form an article having an outward flange at its top end.</description><edition>7</edition><language>eng ; fre ; ger</language><subject>ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR ; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS ; CONVEYING ; HANDLING THIN OR FILAMENTARY MATERIAL ; PACKAGES ; PACKAGING ELEMENTS ; PACKING ; PERFORMING OPERATIONS ; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR ; SHAPING OR JOINING OF PLASTICS ; STORING ; TRANSPORTING ; WORKING OF PLASTICS ; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><creationdate>2004</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20040225&DB=EPODOC&CC=EP&NR=1391287A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20040225&DB=EPODOC&CC=EP&NR=1391287A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MARTIN, MICHAEL KENT</creatorcontrib><creatorcontrib>CASE, MANSON DREW</creatorcontrib><title>Extrusion blow molding method and article made thereby</title><description>A process for extrusion blow molding an article, and an extrusion blow-molded article, in which a solid radially outwardly extending flange (26) is blown into the tubular side wall (24) of the article. A circumferentially extending groove is formed in the inner surface of the mold that molds the tubular side wall of the article. A parison (58) of molten thermoplastic material is extruded and the parison is inflated by blowing to blow the parison against the walls of a mold (60). During inflation, the groove is filled by the molten thermoplastic material. The material that filled the groove forms a solid radially outwardly extending flange (26) molded to the tubular side wall (24) of the article. 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A circumferentially extending groove is formed in the inner surface of the mold that molds the tubular side wall of the article. A parison (58) of molten thermoplastic material is extruded and the parison is inflated by blowing to blow the parison against the walls of a mold (60). During inflation, the groove is filled by the molten thermoplastic material. The material that filled the groove forms a solid radially outwardly extending flange (26) molded to the tubular side wall (24) of the article. A portion (70) of the article extending above the flange is severed in a single cutting step to form an article having an outward flange at its top end.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
| title | Extrusion blow molding method and article made thereby |
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