Reclosable shipping sack and method

Details Reclosable shipping sack and method Reclosable shipping sack and method

1979-08-06

1980-12-30

Norton, Donald F.

Envelopes, wrappers, and paperboard boxes

File folder or file envelope

Hanging type

150 3, 156 66, 156 93, 206618, B65D 3326

Patent

active

042418658

ABSTRACT:
A reclosable sack having a pouring mouth from which discrete pourable contents may be discharged, comprises a primary non-reclosable stitched closure fastener across and closing the mouth against unintentional discharge of the contents and includes means such as chain stitch and rip strip for facilitating digital opening of the primary closure fastener. A secondary, reclosable fastener, desirably of the zipper type, extends across the sack mouth outwardly from the primary closure fastener and is adapted for selectively opening and closing the sack mouth after opening of the primary closure fastener. A method of making the reclosable sack is also disclosed.

REFERENCES:
patent: 1920321 (1933-08-01), Rosmait
patent: 1930659 (1933-10-01), Purdy
patent: 1951599 (1934-03-01), Dever
patent: 2978769 (1961-04-01), Harrah
patent: 3030003 (1962-04-01), Schanzle
patent: 3619395 (1971-11-01), Shendzic
patent: 3685562 (1972-08-01), Ausnit

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