Manufacturing container or tube from paper; or other manufacturi – Container making – Pliable container
Patent
1987-11-02
1989-11-28
Laroche, Eugene R.
Manufacturing container or tube from paper; or other manufacturi
Container making
Pliable container
493204, 493926, 383 9, B31B 164
Patent
active
048834505
ABSTRACT:
The present invention is a method of continuously making thermoplastic film bags having one-side-free for separation from an opposite side. The method includes providing a continuous tube of thermoplastic film for formation of the bag, such tube having a continuous surface which forms opposing sides of the bags. The tube is directed to a bag forming means which continuously flattens the tube into at least the opposing sides of the bag. The tube must intermittently be partially severed on one of the opposing sides at intervals corresponding to single bag lengths, such severance being made at a location for providing detachable separation of the one wall from the opposing wall. Next a sealed seam is formed across the tube at intervals which provide bottoms to each of the bags, and the bags are then collected in a stack where they are substantially aligned followed by fusing the stack of substantially aligned bags adjacent the severance in the one side for separating the bags from stack one side at a time.
REFERENCES:
patent: 4464157 (1984-08-01), Benoit
patent: 4476979 (1984-10-01), Reimann
patent: 4493419 (1985-01-01), Prader
patent: 4554192 (1985-11-01), Benoit
patent: 4588392 (1986-05-01), Maddock
patent: 4597749 (1986-07-01), O'Brien
patent: 4604084 (1986-08-01), Pistner
patent: 4744200 (1988-05-01), Benoit, Jr. et al.
LaRoche Eugene R.
McKillop Alexander J.
Mobil Oil Corp.
Pascal Robert J.
Speciale Charles J.
LandOfFree
Process for making single side free plastic bag does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for making single side free plastic bag, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making single side free plastic bag will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-579683