B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
B65H 45/09 (2006.01) B31B 19/14 (2006.01) B31B 23/00 (2006.01) B65B 25/16 (2006.01) B65B 43/04 (2006.01) B65B 43/36 (2006.01) B65H 45/30 (2006.01)
Patent
CA 2240947
A folding device for folding sheet material over itself about a longitudinal fold line to define upper and lower flaps comprises a support and a generally planar first folding element mounted on the support behind which the sheet material passes. The first folding element presents a first folding edge extending generally normal to the longitudinal axis of the sheet material over which a first portion of the sheet material is folded and a second folding edge extending at an angle to the first folding edge over which a second portion of the sheet material is folded. The first and second folding edges meet at a corner. A generally planar second folding element, also mounted on the support, is spaced from the first folding device and presents a third folding edge forming generally a right angle with the second folding edge over which the first portion of the sheet material is folded and over which the second portion of the sheet material passes. A machine for making and positioning bags formed from a band of hot-melt plastic folded over itself about a longitudinal fold line and defining upper and lower flaps is also disclosed.
Frigo Luigi
Gudmundsson Stefan
Frigo Luigi
Gudmundsson Stefan
Sim & Mcburney
LandOfFree
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