Package making – Apparatus for contraction of cover by stretching or shrinking
Patent
1991-03-25
1992-01-21
Sipos, John
Package making
Apparatus for contraction of cover by stretching or shrinking
53587, 533894, 226 91, B65B 1104, B65B 4116
Patent
active
050818244
ABSTRACT:
A carriage for unwinding packaging film and incorporation in a packaging machine, comprising a stand carrying a supporting shaft for a film reel and a roller device carried by the stand and comprising two main rollers including upstream and downstream rollers with parallel axes of rotation and set transversely apart but near to one another to define therebetween a passage for the packaging film having an entry orifice and an exit orifice, the two main rollers being simultaneously rotatable about their respective axes in opposite directions by drive means. Two film guide rollers including an upstream and a downstream guide roller are respectively associated with the upstream and downstream main rollers and have axes of rotation parallel to one another and to the axes of rotation of the main rollers. Selectively controlled means carried by the stand are operative to displace the upstream and downstream guide rollers respectively around the upstream and downstream main rollers from temporary initial end positions respectively adjacent the entry and exit orifices of the two main rollers to final end operational positions respectively near the exit and entry orifices of the main rollers to bend the film around and lay it against the two main rollers.
REFERENCES:
patent: 2700544 (1955-01-01), Chambon
patent: 3674942 (1972-07-01), Sugaya
patent: 4109445 (1978-08-01), Shulman
patent: 4119445 (1978-10-01), Bosch et al.
patent: 4204377 (1980-05-01), Lancaster et al.
patent: 4235062 (1980-11-01), Lancaster
patent: 4255918 (1981-03-01), Lancaster et al.
patent: 4317322 (1982-03-01), Lancaster
patent: 4587796 (1986-05-01), Haloila
patent: 4718219 (1988-01-01), Schmitz
patent: 4790125 (1988-12-01), Merritt
Morantz Jack
Thimon Jacques
Newtec International (Societe Anonyme)
Sipos John
LandOfFree
Film unwinding carriage for a packaging machine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Film unwinding carriage for a packaging machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Film unwinding carriage for a packaging machine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-109161