US Patent No: 5,930,983
Number of patents in Portfolio can not be more than 2000
Form, fill and seal packaging machine with bag squeezer and method
Stats
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Aug 3, 1999
Issued date -
Mar 4, 1997
filing date -
08/811,471
serial no -
In Force
status
Importance
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Abstract
A vertical form, fill and seal packing machine and method for making recloseable bags having a safety seal exterior to a recloseable seal. The machine produces durable, substantially air-tight bags at high speed and provides for the production of different size and make of bags and different amounts and types of product in the bags. The machine includes a film drive and pinch roll pair, a pair of film pull belts, and a pair of zipper drive rollers for pulling the plastic film and zipper strip through the machine. The production of different size bags is facilitated by having the film drive roll, pull belts, and zipper drive rollers simultaneously driven in bag length increments by a common drive source. Also, to accommodate the production of different size bags, the machine includes a programmable control system, an optical mark sensor, and an adjustable film path length. Further, the machine and method of the present invention ensures reliable seals along the edges of each product-filled bag by having the zipper drive rollers and a bag grabber mechanism stretch the bag material prior to squeezing the excess air out of the product-filled tube and then cross-sealing and severing the bag material. The machine includes a bag squeezer unit having opposing squeeze plates or pads for removing excess air and/or compacting the product to form a reduced size, recloseable bag.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,354,541 Profiled plastics bag closure strip and adhesive bonding method | 92 | 1980 | |
| 4,355,494 Reclosable bags, apparatus and method | 176 | 1980 | |
| 4,372,793 Method of joining flexible fastener strips to flexible web | 92 | 1981 | |
| 4,589,145 Packaging material and package | 103 | 1983 | |
| 4,617,683 Reclosable bag, material, and method of and means for making same | 199 | 1984 | |
| 4,709,533 Method and apparatus for making reclosable bags in a form, fill and seal machine | 132 | 1986 | |
| 4,840,012 Zippered film feed | 72 | 1987 | |
| 4,894,975 Method and apparatus for making reclosable bags with fastener strips in a form fill and seal machine | 164 | 1988 | |
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| 4,288,965 Form-fill-seal packaging method and apparatus | 66 | 1979 | |
| 4,391,079 Control system for cyclic machines | 28 | 1980 | |
| 4,391,081 Method of and apparatus for forming, filling and sealing packages | 42 | 1980 | |
| 4,532,753 Method of and apparatus for forming, filling and sealing packages | 54 | 1983 | |
| 4,546,596 Method of and apparatus for forming, filling and sealing packages | 39 | 1984 | |
| 4,860,522 Form, fill and seal registration system apparatus and method including variable length compensation and out of registration restoration | 15 | 1988 | |
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| 4,869,048 Stretcher for package forming | 43 | 1988 | |
| 5,417,035 Apparatus and method for manufacture flexible reclosable containers | 67 | 1988 | |
| 4,986,054 Fill tube spreader | 28 | 1989 | |
| 4,974,395 Zipper guide and spreader device for form, fill and seal machines | 50 | 1990 | |
| 5,014,497 Method and apparatus for smoothing of bag making material in form, fill and seal machines | 13 | 1990 | |
| 5,054,270 Bag support/spreader for vertical form, fill and seal machines | 18 | 1990 | |
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| 5,014,489 Film sheet feed for food tray film wrapping machine | 24 | 1990 | |
| 5,167,107 Pinch sealer drive mechanism | 24 | 1991 | |
| 5,400,565 Vertical form, fill and seal packaging machine for making recloseable product filled bags | 89 | 1993 | |
| 5,505,037 Vertical form, fill and seal machine for making recloseable bags | 106 | 1994 | |
| 5,746,043 Convertible form, fill and seal packaging machine and method | 41 | 1996 | |
| 5,768,852 Vertical form, fill and seal machine, components and method for making reclosable bags | 42 | 1996 | |
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| 4,727,707 Packaging film feeding apparatus and method | 26 | 1986 | |
| 4,751,808 Combined stripper and sealing apparatus for bag forming and method | 23 | 1987 | |
| 4,996,825 Combined blousing, stripping and sealing for bag forming and method | 12 | 1989 | |
| 5,062,253 Combined film feeding stripping and sealing for bag forming and method | 16 | 1990 | |
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| 4,768,327 Packaging machine with variable sealing jaw displacement apparatus | 24 | 1987 | |
| 4,800,707 Vertical form, fill & seal packaging machine with servo motor drive means | 20 | 1987 | |
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| 4,622,798 Sealing mechanism for a packing machine | 17 | 1985 | |
| 5,241,804 Vertical type forming, filling and closing machine for flexible package | 29 | 1992 | |
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| 4,633,654 Air extractor for bag making, filling and packaging machine | 16 | 1984 | |
| 4,754,593 Bag-making-and-filling packaging apparatus | 20 | 1987 | |
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| 5,259,172 Packaging machine and method | 12 | 1992 | |
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| 4,552,608 System for computer controlled labeling machine | 56 | 1983 | |
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| 4,945,714 Form, fill, seal and separate packaging machine for reclosable containers | 88 | 1989 | |
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| 4,549,386 Form-fill-seal wrapping apparatus | 31 | 1984 | |
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| 4,829,746 Apparatus for placing a web of film under tension | 14 | 1987 | |
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| 5,235,794 Bag making apparatus and method | 21 | 1992 | |
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| 4,691,499 Method of tensioning a web of packaging material | 22 | 1984 | |
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| 4,745,731 Apparatus and method for forming reclosable storage containers | 60 | 1987 | |
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| 4,534,159 Apparatus for forming, filling and sealing bags with fluid contents | 21 | 1982 | |
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| 4,999,974 Method of and apparatus for forming filling and sealing packages | 21 | 1990 | |
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| 4,757,668 Method and apparatus for form-fill-seal packaging of articles | 41 | 1987 | |
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| 5,279,098 Apparatus for and method of transverse sealing for a form-fill-seal packaging machine | 46 | 1993 | |
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| 5,247,779 Self voiding jaw for packaging machine | 18 | 1992 | |
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| 4,676,051 Method and apparatus for forming, filling and sealing bags made from a continuous plastic sheet | 28 | 1986 | |
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| 4,965,986 Apparatus for forming, filling and sealing bag-type packages | 17 | 1989 | |
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| 4,316,566 Apparatus for registration and control for a moving web | 55 | 1980 | |
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| 4,501,109 Packaging machine with improved web feeding system | 33 | 1982 | |
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| 5,127,208 Method and apparatus for forming a reclosable package | 127 | 1991 | |
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| 4,727,709 Steering, joining and guiding mechanism for zippered film | 49 | 1986 | |
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| 5,136,505 Electronic translator apparatus for translating words or phrases and auxiliary information related to the words or phrases | 15 | 1989 | |
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| 4,790,126 Fill and seal machine for reclosable bags | 79 | 1987 | |
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| 5,231,817 Pouch collapsing assembly for vertical form, fill and seal machine | 11 | 1992 | |
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| 4,874,257 Method of forming a closed filled bag, a bag construction and an apparatus for forming the bag | 65 | 1988 | |
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| 4,829,745 Tube spreader for removing wrinkles in tube stock | 31 | 1987 | |
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| 4,216,705 Apparatus for making carrier bags from two half-tubes running side-by-side | 24 | 1978 | |
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| 4,872,360 Moving cylinder actuator | 18 | 1988 | |