Manufacturing container or tube from paper; or other manufacturi – Container making – Pliable container
Patent
1989-03-16
1991-04-23
Schmidt, Frederick R.
Manufacturing container or tube from paper; or other manufacturi
Container making
Pliable container
493206, 493209, 53567, B31B 2374
Patent
active
050096320
ABSTRACT:
A transverse-welding station [(12)] is provided for joining the hose parts [(11a, 11b)] of foil hoses [(11)] that are welded to bag lengths [(BL)] by transverse welds [(21, 22)]. In this station, the hose parts are superimposed such that the joining weld is laid exactly on the superimposed transverse welds [(22) ] of the two hose parts. This results in a joining of the hose ends that does not use adhesive tape and observes the pitch determined by the length of the bags. The invention provides a joining that is practically imperceptible and does not at all impair the quality of the bags made. In particular, the occurrence of single bags that would have to be considered as waste is avoided. The method is applicable for cutting out imperfections from a foil hose, as well as for connecting the beginning of one hose roll to the end of the preceding hose roll.
REFERENCES:
patent: 2113636 (1938-04-01), Vogt
patent: 2635670 (1953-04-01), Winberg
patent: 3411419 (1968-11-01), Becker
patent: 3680445 (1972-08-01), Pearl
Karl H. Sengewald KG
Lavinder Jack
Schmidt Frederick R.
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