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US 4,362,199 AGranted
Flexible containers
AssigneeMiller Weblift Limited
InventorCharles S. Futerman
Life of this patent
Estimating the term…
Abstract
An improved flexible container structure is disclosed in which there is woven in selected areas of a base fabric formed of body yarns threads of reinforcing yarns extending in the intended load-bearing direction. Preferably, the tension of the reinforcing yarns during weaving is greater than the tension of the body yarns in the load-bearing direction.
Claims17
A flexible bag for transporting material, comprising
- (a) a body of textile fabric material including warp and weft threads, said body including bottom and side wall portions, said side wall portions having upper edges, selected parts of said side wall portions containing reinforcing warp threads which are formed of a synthetic plastic material and are interwoven with weft threads, thereby to provide reinforced areas, all of said reinforcing threads having a higher tensile strength than the warp threads in an area other than said reinforced areas;
- and
- (b) open-ended loop lifting means having free ends, said free ends being attached to said reinforced areas at locations which are spaced upwardly from said bag bottom portion and are adjacent the upper side wall edges, respectively, thereby to produce a bag having a greater load bearing capacity when lifted by said lifting means.
Dependencies are inferred from the claim text.