Flexible collapsible container with a stiffening member

Details Flexible collapsible container with a stiffening member Flexible collapsible container with a stiffening member

1979-06-18

1981-07-14

Garbe, Stephen P.

Envelopes, wrappers, and paperboard boxes

Wrapper

Bottle

128214D, B65D 3302, B65D 3314

Patent

active

042781981

ABSTRACT:
Method and apparatus for forming novel flexible, collapsible containers from a pair of facing sheet sections, and a stiffener bar positioned between the sheet sections, is disclosed. The pair of facing sheet sections are passed along a process path through a sealing die, with a continuous length of the stiffener bar being positioned between the sheet sections and passed along with process path with the sheet sections. The sealing die forms seal lines between the facing sheet sections to define a group of collapsible containers, each carrying the stiffener bar in transverse relation thereto. Then, at least one of the sheet sections and the stiffener bar is cut through at positions adjacent the edges of the collapsible containers, to permit the separation of the formed collapsible containers, carrying separated stiffener bar sections, from each other.

REFERENCES:
patent: 2878849 (1959-03-01), Lingenfelter et al.
patent: 2971874 (1961-02-01), Canno
patent: 2983087 (1961-05-01), Schofield
patent: 3064652 (1962-11-01), Corcoran et al.
patent: 3096013 (1963-07-01), Kugler
patent: 3231901 (1966-02-01), Kennedy
patent: 3596824 (1971-08-01), Lehmacher
patent: 3724743 (1973-04-01), Tomlinson
patent: 3915212 (1975-10-01), Bujan et al.
patent: 4009287 (1977-02-01), Clarke

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