Envelopes – wrappers – and paperboard boxes – Paperboard box – Box material includes a coating or a nonpaperboard...
Patent
1982-09-30
1985-07-02
Price, William
Envelopes, wrappers, and paperboard boxes
Paperboard box
Box material includes a coating or a nonpaperboard...
220462, 229 17R, 229 37R, 229DIG4, B65D 540
Patent
active
045263140
ABSTRACT:
A packaging for filling materials which are capable of flow, comprises side and end walls of coated paper, cardboard or the like, which are joined by means of at least one sealing seam. Bending lines (7) are provided in the coated paper, cardboard or the like. So that the bending lines in such packaging remain undamaged in spite of a thin overall coating of plastics material on the paper web, even when processed in a manufacturing machine, it is provided that disposed in the region of at least some bending lines (7) is at least one plastics reinforcing strip (15) which engages thereover, such that the welding and contact surface (29) between the reinforcing strip (15) and the coated cardboard (61, 62) terminates from all sides at a spacing from the bending lines (7).
REFERENCES:
patent: 2168186 (1939-08-01), Adamson
patent: 2558918 (1951-07-01), Zinn, Jr.
patent: 2661141 (1953-12-01), Zinn, Jr.
patent: 3421678 (1969-01-01), Thompson et al.
patent: 3727825 (1973-04-01), Troth
patent: 4197962 (1980-04-01), Edwards
Elkins Gary E.
Price William
Tetra Pak Developpement S.A.
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