Patent ID: 6725628
Filing Date: 2004-04-27
Classification: B26F,B29C,B29L,B65B,Y10T

Abstract:
A process for the continuous production of beverage filter bags, the process comprising the steps of:providing a continuous sheet of filter paper; depositing individual beverage-substance portions in at least one row on said continuous sheet of filter paper; forming a sleeve of said continuous sheet of filter paper and providing a longitudinal seam for closing the sleeve; producing a pocket string of consecutive, contiguous pockets of said sleeve by providing transverse seams, each of said transverse seams including both, a trailing seam for a previous pocket of said pocket string in respect to the transverse seam and a leading seam for that pocket of said pocket string that is following said previous pocket thereby sealing individually each of said pockets so that the pockets are closed on all sides and each contains at least one portion of said beverage substance; producing perforations between said two seams of said transverse seam; guiding the pocket string to a continuous rotating wheel having recesses for individual pockets; seizing longitudinal sides of the pockets to be separated from said pocket string by grippers position on a side of the wheel; providing a relative movement between the grippers and the wheel whereby separating the pocket from the pocket string providing a hanging-strip supply string made of a carrier sheet material; connecting each of said pockets seperated from the pocket string to a hanging-strip supply string; and separating the hanging strip from the hanging-strip supply string.