Thermoplastic bags having stress relief feature at handle connec

Details Thermoplastic bags having stress relief feature at handle connec Thermoplastic bags having stress relief feature at handle connec

1980-06-13

1982-04-27

Garbe, Stephen P.

Envelopes, wrappers, and paperboard boxes

Wrapper

Bottle

229 55, B65D 3306, B65D 3302

Patent

active

043266649

ABSTRACT:
A thermoplastic bag characterized by having handles formed on opposite ends of the bag mouth which is characterized by having structural features immediately adjacent the mouth of the bag to provide stress relief at those positions on the bag mouth where maximum stress is concentrated when such bags are being filled with product and eventually carried by the user. The stress redistribution feature is characterized by an area or areas, immediately adjacent the mouth portion of the bag and the base of the handle members, which are characterized by having a plurality of narrow pleats which are impressed into the bag structure by die members during formation of the individual bag.

REFERENCES:
patent: 2071362 (1937-02-01), Rowe
patent: 2095067 (1937-10-01), Kirk
patent: 2170945 (1939-08-01), Greene
patent: 2213290 (1940-09-01), Rowe
patent: 3966524 (1976-06-01), Lehmacher

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