Package making – Methods – Conforming by stretching or shrinking of cover over contents
Patent
1995-12-15
1998-12-22
Johnson, Linda
Package making
Methods
Conforming by stretching or shrinking of cover over contents
53557, B65B 5302
Patent
active
058507230
ABSTRACT:
When packing articles, particularly sheet stacks, such as computer lists, for transportation and dispatch purposes in a film, thick stacks should be tightly enveloped with a shrink film envelope, so as to increase their transportation stability, whereas the envelope of thin stacks is to remain unshrunk, so as not to deform the stack. It is proposed that both types of articles be passed in the packing line through the shrinkage tunnel, but in the case of articles not to be shrunk by increasing the passage speed and/or decreasing the circulating air speed, the heat transfer conditions are reduced in such a way that no shrinkage occurs. It is also proposed to so control the welding dies or jaws of a longitudinal welding station as a function of the thickness of the articles that thinner packs are more tightly enveloped than thicker packs.
REFERENCES:
patent: 3591767 (1971-07-01), Mudie
patent: 3785276 (1974-01-01), Noor
patent: 4991376 (1991-02-01), Backman
patent: 5001884 (1991-03-01), Hanagata
patent: 5299410 (1994-04-01), Freeman
Johnson Linda
Kallfass Verpackungsmachinen GmbH & Co.
Nath Gary M.
LandOfFree
Method and apparatus for packing articles in shrink film does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for packing articles in shrink film, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for packing articles in shrink film will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2037694