METHOD AND APPARATUS FOR MAKING A WAVE TOP BAG

A method and apparatus for making rolls of wave cut bags, and a roll of bags is disclosed. A film is weakened along a generally straight line in a generally cross machine direction. The film is also weakened a wave shape, and the wave shape weakenings are alternated with the straight line weakenings...

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Hauptverfasser: SCHMOLL, BRADLEY J, JOHNSON, PAUL A, SAUDER, CHARLES H
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Sprache:eng ; fre
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creator SCHMOLL, BRADLEY J
JOHNSON, PAUL A
SAUDER, CHARLES H
description A method and apparatus for making rolls of wave cut bags, and a roll of bags is disclosed. A film is weakened along a generally straight line in a generally cross machine direction. The film is also weakened a wave shape, and the wave shape weakenings are alternated with the straight line weakenings. The film is folded in a cross machine direction, and the straight line weakenings are separated to form bottoms of adjacent bags. The bottoms of adjacent bags are preferably overlapped, although they need not be. The wave shaped weakenings are preferably separated (although they need not be) to form wave shaped tops of a adjacent bags. If separated, the wave shaped tops have a longer portion and a shorter portion, and the longer portion is between, in the machine direction, the longer and shorter portion of the adjacent wave shaped top. Une méthode et un appareillage servant à fabriquer des rouleaux de sac à ligne de découpe ondulée et un rouleau de sacs sont révélés. Une pellicule est affaiblie le long dune ligne généralement droite dans une direction généralement perpendiculaire à la machine. La pellicule est également affaiblie selon une forme ondulée et les affaiblissements selon la forme ondulée sont alternés avec les affaiblissements de la ligne droite. La pellicule est pliée dans une direction perpendiculaire à la machine et les affaiblissements de ligne droite sont séparés pour former les fonds des sacs adjacents. Les fonds des sacs adjacents sont préférablement chevauchés, bien que ce ne soit pas nécessaire. Les affaiblissements en forme ondulée sont préférablement séparés (bien que ce ne soit pas nécessaire) pour former les hauts en forme ondulée des sacs adjacents. Sils sont séparés, les hauts en forme ondulée ont une portion plus longue et une portion plus courte, et, dans la direction machine, la portion plus longue est entre la portion plus longue et la portion plus courte du haut en forme ondulée adjacent.
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A film is weakened along a generally straight line in a generally cross machine direction. The film is also weakened a wave shape, and the wave shape weakenings are alternated with the straight line weakenings. The film is folded in a cross machine direction, and the straight line weakenings are separated to form bottoms of adjacent bags. The bottoms of adjacent bags are preferably overlapped, although they need not be. The wave shaped weakenings are preferably separated (although they need not be) to form wave shaped tops of a adjacent bags. If separated, the wave shaped tops have a longer portion and a shorter portion, and the longer portion is between, in the machine direction, the longer and shorter portion of the adjacent wave shaped top. Une méthode et un appareillage servant à fabriquer des rouleaux de sac à ligne de découpe ondulée et un rouleau de sacs sont révélés. Une pellicule est affaiblie le long dune ligne généralement droite dans une direction généralement perpendiculaire à la machine. La pellicule est également affaiblie selon une forme ondulée et les affaiblissements selon la forme ondulée sont alternés avec les affaiblissements de la ligne droite. La pellicule est pliée dans une direction perpendiculaire à la machine et les affaiblissements de ligne droite sont séparés pour former les fonds des sacs adjacents. Les fonds des sacs adjacents sont préférablement chevauchés, bien que ce ne soit pas nécessaire. Les affaiblissements en forme ondulée sont préférablement séparés (bien que ce ne soit pas nécessaire) pour former les hauts en forme ondulée des sacs adjacents. Sils sont séparés, les hauts en forme ondulée ont une portion plus longue et une portion plus courte, et, dans la direction machine, la portion plus longue est entre la portion plus longue et la portion plus courte du haut en forme ondulée adjacent.</description><language>eng ; fre</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 ; MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNERANALOGOUS TO PAPER ; MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN AMANNER ANALOGOUS TO PAPER ; PACKAGES ; PACKAGING ELEMENTS ; PACKING ; PERFORMING OPERATIONS ; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE ; 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 ; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUSTO PAPER</subject><creationdate>2017</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&amp;date=20170808&amp;DB=EPODOC&amp;CC=CA&amp;NR=2680700C$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20170808&amp;DB=EPODOC&amp;CC=CA&amp;NR=2680700C$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SCHMOLL, BRADLEY J</creatorcontrib><creatorcontrib>JOHNSON, PAUL A</creatorcontrib><creatorcontrib>SAUDER, CHARLES H</creatorcontrib><title>METHOD AND APPARATUS FOR MAKING A WAVE TOP BAG</title><description>A method and apparatus for making rolls of wave cut bags, and a roll of bags is disclosed. A film is weakened along a generally straight line in a generally cross machine direction. The film is also weakened a wave shape, and the wave shape weakenings are alternated with the straight line weakenings. The film is folded in a cross machine direction, and the straight line weakenings are separated to form bottoms of adjacent bags. The bottoms of adjacent bags are preferably overlapped, although they need not be. The wave shaped weakenings are preferably separated (although they need not be) to form wave shaped tops of a adjacent bags. If separated, the wave shaped tops have a longer portion and a shorter portion, and the longer portion is between, in the machine direction, the longer and shorter portion of the adjacent wave shaped top. Une méthode et un appareillage servant à fabriquer des rouleaux de sac à ligne de découpe ondulée et un rouleau de sacs sont révélés. 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A film is weakened along a generally straight line in a generally cross machine direction. The film is also weakened a wave shape, and the wave shape weakenings are alternated with the straight line weakenings. The film is folded in a cross machine direction, and the straight line weakenings are separated to form bottoms of adjacent bags. The bottoms of adjacent bags are preferably overlapped, although they need not be. The wave shaped weakenings are preferably separated (although they need not be) to form wave shaped tops of a adjacent bags. If separated, the wave shaped tops have a longer portion and a shorter portion, and the longer portion is between, in the machine direction, the longer and shorter portion of the adjacent wave shaped top. Une méthode et un appareillage servant à fabriquer des rouleaux de sac à ligne de découpe ondulée et un rouleau de sacs sont révélés. Une pellicule est affaiblie le long dune ligne généralement droite dans une direction généralement perpendiculaire à la machine. La pellicule est également affaiblie selon une forme ondulée et les affaiblissements selon la forme ondulée sont alternés avec les affaiblissements de la ligne droite. La pellicule est pliée dans une direction perpendiculaire à la machine et les affaiblissements de ligne droite sont séparés pour former les fonds des sacs adjacents. Les fonds des sacs adjacents sont préférablement chevauchés, bien que ce ne soit pas nécessaire. Les affaiblissements en forme ondulée sont préférablement séparés (bien que ce ne soit pas nécessaire) pour former les hauts en forme ondulée des sacs adjacents. Sils sont séparés, les hauts en forme ondulée ont une portion plus longue et une portion plus courte, et, dans la direction machine, la portion plus longue est entre la portion plus longue et la portion plus courte du haut en forme ondulée adjacent.</abstract><oa>free_for_read</oa></addata></record>
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language eng ; fre
recordid cdi_epo_espacenet_CA2680700C
source esp@cenet
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
MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNERANALOGOUS TO PAPER
MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN AMANNER ANALOGOUS TO PAPER
PACKAGES
PACKAGING ELEMENTS
PACKING
PERFORMING OPERATIONS
PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE
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
WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUSTO PAPER
title METHOD AND APPARATUS FOR MAKING A WAVE TOP BAG
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