Manufacturing container or tube from paper; or other manufacturi – Container making – Pliable container
Utility Patent
1998-09-15
2001-01-02
Johnson, Brian L. (Department: 3618)
Manufacturing container or tube from paper; or other manufacturi
Container making
Pliable container
C493S194000, C493S200000, C493S208000, C493S231000, C493S341000, C493S360000, C493S403000, C493S446000, C053S118000, C242S258000
Utility Patent
active
06168558
ABSTRACT:
TECHNICAL FIELD
The invention relates to a method and a device for producing plastic bags from a flattened flexible hose. The invention also relates to a roll of plastic bags.
PRIOR ART
It is common practice to produce plastic bags from flexible plastic hoses. The hose is flattened and formed into bags that are connected top to bottom by a perforation. Each bag normally extends over the complete width of the hose. A line of perforated but connected bag are then normally winded to form a roll of bags, and the roll is then disposed in a paper box or dispenser.
When a bag is to be removed from the roll and used it is necessary to locate the position of the perforated section and then tear off the bag. Different types of boxes and dispensers have been suggested but many consumers still find it difficult or troublesome to tear of the bag in an appropriate way. In prior art there are also rolls off plastic bags that are loosely collected in an overlapping position. However, rolls of this structure are less stable than rolls of bags that are connected by perforated sections.
SUMMARY OF THE INVENTION
An object of the invention is to improve the production of bags, preferably plastic bags. According to an embodiment of the invention it is possible to produce a roll of bags from which bags can be withdrawn in a simplified way.
Further advantages and features of the invention are shown in the description below and in the accompanying drawings and dependent claims.
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patent: 4041849 (1977-08-01), Tsukasaki
patent: 4818328 (1989-04-01), Hara
patent: 4892512 (1990-01-01), Branson
patent: 5205808 (1993-04-01), Gebhardt
patent: 5254071 (1993-10-01), Laroche
patent: 5619840 (1997-04-01), Nyman et al.
patent: 5827162 (1998-10-01), Rubin et al.
Brooks & Kushman P.C.
FAS Converting Machinery AB
Johnson Brian L.
Luby Matthew
LandOfFree
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