Reclosable plastic bag construction made from a one piece extrus

Details Reclosable plastic bag construction made from a one piece extrus Reclosable plastic bag construction made from a one piece extrus

1977-07-07

1981-08-25

Moy, Joseph Man-Fu

Purses, wallets, and protective covers

Protective cover made of flaccid material

For a racquet

229 55, 229 62, B65D 3302

Patent

active

042853761

ABSTRACT:
A reclosable bag made from a thin web plastic extrusion has a bag or pouch portion at the top of which an integral return bent gusset provides upwardly projecting multi-ply flanges by which separable resilient zipper-type fastener profiles comprising integral parts of the plastic extrusion are adapted to be pulled apart by pulling the flanges away from one another. The downwardly projecting portion of the gusset initially may provide an unbroken hermetic seal for the bag or pouch. Where preferred the gusset may be of sufficient length relative to the location of the separable resilient fastener to provide an infolded pouring funnel spout after the tip of the spout has been opened and the spout withdrawn or projected from the top opening from the bag. On the other hand, the infolded gusset may serve simply as a hermetic sealing web adapted to be ruptured for discharge of contents from the bag. After opening of the bag, it is adapted to be reclosed by securing the resilient separable fastener profiles together.

REFERENCES:
patent: 2017838 (1935-10-01), Baker et al.
patent: 2340546 (1944-02-01), Meaker
patent: 2789609 (1957-04-01), Post
patent: 3119549 (1964-01-01), Schoen
patent: 3300120 (1967-01-01), McColgan
patent: 3473589 (1969-10-01), Gotz
patent: 3652006 (1972-03-01), Trewella
patent: 3746215 (1973-07-01), Ausnit et al.
patent: 3917160 (1975-11-01), Olerud
patent: 3945403 (1976-03-01), Nogochi

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