B - Operations – Transporting – 31 – B
Patent
B - Operations, Transporting
31
B
93/13
B31B 1/36 (2006.01) B65H 45/08 (2006.01)
Patent
CA 1229758
ABSTRACT An improved former and method of forming superposed hems in superposed panels forming a continuous pliable and foldable web, especially thin plastifilm panels for forming plastic bags includes a first turning edge for turning at least an intermediate portion of the superposed panels from a first direction to a second direction, a second turning edge adjoining one side of the first turning edge for turning superposed free side edge portions of the web transverse to the intermediate portions and third and fourth turning edges spanning both the turned intermediate portions and turned side edge portions of the web for turning a separate one of the side edge portions against the turned intermediate portion thereby forming the hem.
490264
Boyd Dana M.
Bustin Frank
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
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