Plastic bag chain
AssigneeSignode Corporation
InventorPeter Lems
Life of this patent
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AssigneeSignode Corporation
InventorPeter Lems
Estimating the term…
A serially interconnected chain of reclosable, zipper-lock plastic bags is arranged for facilitated handling in an automatic bag filling machine. The bag chain may be formed with single or plural connecting spot links between side edges of adjacent bags to maintain alignment of the bags in the chain as the chain is unwound from storage and threaded along a lateral transport path running through the filling machine. The connecting links are adapted to be broken during the loading operation so that separate, loaded bags may be discharged from the machine for packaging. Each bag is formed with raised ridge surface means running laterally thereacross adapted to be slidably received in a suitable guide track means of the filling machine to provide vertical support for the bags as the chain is being drawn between various work stations in the filling machine.
In combination a chain of laterally interconnected bags and a machine for filling them, each bag having bottom and side edges fully closed along the entire length thereof and a reclosable upper end mouth having interlocking fastener strip profiles running fully laterally across opposed inner facing surfaces of said mouth, said machine comprising drive means for pulling said chain disposed in and along a laterally extending linear track extending through the machine, with said track having a channel recess, means for filling said bags, and means for separating each filled bag from said chain, said bag chain comprising:
Dependencies are inferred from the claim text.