Modified soft bag expanders

Details Modified soft bag expanders Modified soft bag expanders

1999-03-25

2000-08-15

Pascua, Jes F.

Flexible bags

Miscellaneous

383 33, A45C 700

Patent

active

061025704

ABSTRACT:
A soft bag expander comprising a bottom panel having at least two bottom fold lines along opposite sides thereof; a first inner side panel and a second inner side panel affixed to said bottom panel along a first fold line and second fold line and each inner side panel being rotatable about the fold line to extend upwards from the bottom panel; a top panel having at least two top panel fold lines along opposite sides thereof; a first outer side panel and a second outer side panel, each outer side panel being disposed on a respective inner side panel, a respective middle fold line transversing each outer side panel formed parallel to the bottom fold line, each outer side panel extending from a respective top panel fold line to a position below each respective fold line; a resilient member resiliently joining a respective one of the outer side panels to a respective inner side panel to bias the respective side panels from a closed position into an open position, the inner side panels being positioned adjacent to the bottom panel in the closed position and the inner side panel extending upwards from the bottom panel in the open position. Other forms of the invention use side panels affixed to both the bottom and top panels with a separate inner panel biased to the to the side panels. Yet another embodiment of the invention uses pairs of hooks and holes or slots to which the resilient member is strung. An additional embodiment of the invention contains break lines along the top panel making the expander particularly suited for expanding tapered or satchel type bags.

REFERENCES:
patent: 4993846 (1991-02-01), Diamond et al.
patent: 5179600 (1993-01-01), Bailey et al.
patent: 5322362 (1994-06-01), Smith
patent: 5499874 (1996-03-01), Tang

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