Triple wall fold construction and forming process and mechanism

Details Triple wall fold construction and forming process and mechanism Triple wall fold construction and forming process and mechanism

1990-02-07

1993-11-30

Ryan, Patrick J.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With bending, folding, winding, or wrapping means

156510, 156250, 156257, 156259, 156268, 156269, 156271, 83105, 83425, 83875, B31F 100

Patent

active

052661482

ABSTRACT:
An improved triple wall corrugated paper board fold construction is formed by joining a single face web with a nonadhered band of the medium to a contiguous liner of another one of the single face webs, slitting and removing a portion of the nonadhered band along a narrow bending area, and removing the slit strip to leave a bending groove formed with one or more score lines in the material underlying the groove, as the board continuously moves along a path of travel.

REFERENCES:
patent: 2759523 (1956-08-01), Goldstein et al.
patent: 3122976 (1964-03-01), Anderson
patent: 3290205 (1966-12-01), Goldstein et al.
patent: 3616077 (1971-10-01), Jessee
patent: 4091697 (1978-05-01), Cailey
patent: 4342349 (1982-08-01), Lipman
patent: 4401004 (1983-08-01), Glans et al.
patent: 4539064 (1985-09-01), Andruchiw et al.
patent: 4656910 (1987-04-01), Peterson
Tri-Wall Data Sheet entitled "Tri-Wall VLC (Variable Layer Container)".
Tri-Wall Data Sheet entitled "Tri-Wall Notchfold".
Tri-Wall Data Sheet for Tri-Wall Pak containers for extra long and inter-plant product applications.

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