B - Operations – Transporting – 31 – B
Patent
B - Operations, Transporting
31
B
93/35
B31B 33/00 (2006.01) B31B 3/00 (2006.01) B31B 35/00 (2006.01)
Patent
CA 1109311
ABSTRACT A method and apparatus for the rapid and continuous formation of reinforced flat bottom bags from a substantially endless roll of gussetted tubing. The gussetted tubing or sleeve has opposed faces and sides gussetted inwardly be- tween the opposed faces. The bag is made by closing one end of the sleeve with a seam to seal the opposed faces together with the gussetted sides therebetween. A mandrel positioned within the sleeve is operated through the sleeve by means exterior to the sleeve. The mandrel is provided with wing- like members which open the gussetted sides when operated by the exterior means to flatten the gussetted sides against the opposed faces to form flaps of the gussetted sides that have folds lying in overlapping relationship with the opposed faces. Finally, preselected portions of the flaps in the overlapping sides and faces are secured together to form a flat bottom by pressing the preselected portions of the flaps and the overlaying sides and faces together at the preselect- ed portions and heat sealing to secure the same together.
328271
Hanson Violet M.
Strecker Edgar
Borden Ladner Gervais Llp
Hanson Violet M.
LandOfFree
Machine for manufacturing a square or flat bottom bag having... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Machine for manufacturing a square or flat bottom bag having..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Machine for manufacturing a square or flat bottom bag having... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-41652