B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
156/2.14
B65B 53/02 (2006.01) B65B 9/13 (2006.01)
Patent
CA 1220408
ABSTRACT OF INVENTION. Stretch wrapping apparatus comprising a puckering device and an expandible rectangular frame demountably supported on the puckering device. Belts on the puckering device are provided to feed a length of plastic film tube onto pillars on the expandible frame to form a puckered band as a sub-base supporting the belts is raised relative to the pillars. A drive housed in the puckering device disengagably connected to jacking means on the puckering frame is provided to expand the frame and stretch the band to a size such that the expanded frame and the puckered band thereon can pass freely over the article to be wrapped.
425625
Karpisek Ladislav Stephan
Ridout & Maybee Llp
LandOfFree
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