Patent ID: 6464819
Filing Date: 2002-10-15
Classification: B65H,Y10T

Abstract:
A method of sealing a piece of folded material incoming along a substantially horizontal traveling path from an upstream direction toward a downstream direction, wherein the folded material has a leading edge, a lower side and an upper side, said method comprising the steps of:(a) providing a supply of tabbing material in a continuous length, wherein said tabbing material has a width, an adhesive side and an opposing non-adhesive side; (b) advancing the supply of tabbing material to release a section of the tabbing material from above the traveling path into the traveling path with the adhesive side facing the leading edge of the folded material, wherein the released section of the tabbing material has a leading end and a trailing end such that the leading end extends below the traveling path and the trailing end is positioned above the traveling path, and wherein the released section of the tabbing material is placed substantially in a vertical orientation with the width of the tabbing material being substantially parallel to the leading edge of the folded material; (c) moving the folded material further downstream so as to cause the leading edge of the folded material to contact the released section of the tabbing material; (d) separating the released section of the tabbing material from the supply at the trailing end with a cutting device with a V-shaped edge having a pointed end located adjacent to the traveling path substantially at a midpoint of the width of the tabbing material in order to allow the released section of the tabbing material to move along with the leading edge of the folded material downstream; and (e) pressing the released section of the tabbing material from the non-adhesive side onto the leading edge of the folded material so as to secure the released section of the tabbing material on the folded material.