Preconditioned paperboard containers and method and...

B - Operations – Transporting – 31 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B31B 1/74 (2006.01) B31F 1/36 (2006.01)

Patent

CA 2248278

Containers and a method for forming such containers having larger brims with reduced brim curl defects is disclosed including providing a plurality of container blanks for forming containers, forming a plurality of container shells from the plurality of blanks, accumulating the plurality of container shells at an accumulation station. subjecting at least an upper periphery of the shells to a humid atmosphere to precondition the shells with the atmosphere preferably including steam, successively removing the shells from the accumulator and subsequently forming a brim curl about an upper periphery of the shell with the shells being subject to the humid atmosphere for a predetermined time period sufficient to form defect-free brim curls by extending the forming strain limits of the paperboard material. This method being carried out by using an accumulator for accumulating the container shells for further processing. Alternatively, the container blanks can be retained in a hopper leaving the portion of the container blank to be formed into the brim of the container exposed.

Cette invention concerne des contenants en carton à bord supérieur roulé plus volumineux et présentant moins d'irrégularités ou défauts ainsi que la méthode de fabrication desdits contenants. Cette méthode comprend l'alimentation en flans d'une machine à façonner, le façonnage des flans en forme de contenant, l'accumulation des contenants façonnés à un poste d'accumulation, mise sous atmosphère humide, préférablement sous forme de vapeur, de la partie supérieure au moins des contenants pour les préconditionner, reprise un à un des contenants accumulés et roulage du bord supérieur de chaque contenant sous atmosphère humide maintenue durant un temps suffisant pour augmenter la déformabilité du carton et obtenir des bords roulés exempts de défauts. Cette méthode fait appel à un accumulateur de contenants en attente de traitement ultérieur. Les flans peuvent aussi est retenus dans une trémie avec la partie à rouler du flanc exposée.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Preconditioned paperboard containers and method and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preconditioned paperboard containers and method and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preconditioned paperboard containers and method and... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2007280

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.