Flexible bags – Free-standing
Patent
1987-08-17
1989-12-12
Moy, Joseph Man-Fu
Flexible bags
Free-standing
383 38, 53409, 53479, B65D 550
Patent
active
048863734
ABSTRACT:
A self-supporting, stand-up, peripherally sealed, flexible, dispensing pouch has a construction which comprises (a) a circumferential, flexible wall that defines a compartment which contains fluidic material; (b) an inverted portion of the flexible wall that extends into the compartment; and (c) a self-supporting rim formed by the confluence of the flexible wall with the inverted portion. The self-supporting, stand-up, dispensing pouch is prepared from a lay-flat, dispensing pouch that is partially filled with fluidic material and wherein the remaining space in the pouch has a reduced vapor pressure, by displacing a substantial portion of the fluidic material contained in a first portion of the pouch to the remaining second portion of the pouch and while maintaining the fluidic material in the pouch second portion, inverting the pouch wall overlying the second portion into the pouch first portion to form an inverted portion, whereby the confluence of the pouch wall with the inverted portion forms a self-supporting rim for up-right support of the pouch.
REFERENCES:
patent: 2718105 (1955-09-01), Ferguson et al.
patent: 3437258 (1969-04-01), Kugler
patent: 4361235 (1982-11-01), Gautier
patent: 4394955 (1983-07-01), Raines et al.
patent: 4718738 (1988-01-01), Bell
Diamond Donald
Man-Fu Moy Joseph
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