Flexible bags – Lifting or suspending element – Single element
Patent
1991-10-31
1992-11-10
Marcus, Stephen
Flexible bags
Lifting or suspending element
Single element
383 17, 383 20, 383 24, B65D 3314
Patent
active
051618532
ABSTRACT:
A flexible bulk container including a bag portion comprised of a top wall, an encircling side panel and a bottom wall. The top wall has a filling spout therethrough for access to the bag interior. The flexible bag is cube-shaped having four corners. At each corner a loop member extends above the top wall. The loop member is comprised of a straight section and a loop section. The straight section extending below the top wall is sewn to the side wall adjacent to each corner. Pockets are similarly sewn to an area adjacent each corner and cover the straight portion of the loop members. Semi-rigid tubular members with open ends enclose the straight portion of the loop members and extend downward into the pockets and upward above the top wall. The loop portions of the loop members extend above the top open end of the tubular members. A continuous elongated hoop passes freely through each loop and is the means for a lifting mechanism to engage the flexible bag. The bag can be lifted using heavy machinery by engaging any section of the elongated hoop. No manual assistance to align the lifting mechanism with the bag is required other than the skills of the machine operator. Once engaged and lifted upwards, the hoop pulls through the loops and upward, collapsing the tubular and loop members toward each other. The bag stays in an upright orientation as the hoop moves toward the center of the bag regardless of where it is engaged along the lifting hoop.
REFERENCES:
patent: 3789897 (1974-02-01), Saito
patent: 4010784 (1977-03-01), Nattrass et al.
patent: 4499599 (1985-02-01), Polett et al.
patent: 4573204 (1986-02-01), Polett
Lehrer Norman E.
Marcus Stephen
Pascua Jes F.
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