Package making – With cover-adjunct application or formation – Adjunct comprising provision to secure cover
Patent
1994-11-10
1996-08-13
Sipos, John
Package making
With cover-adjunct application or formation
Adjunct comprising provision to secure cover
53250, 53253, 53168, B65B 5104
Patent
active
055444660
ABSTRACT:
A method for loading and closing containers, such as bags, with flexible open ends employs a chute with an inflatable bladder at the open end, and an elastic closure device. A flexible open end of the container is placed around the end of the chute and the inflatable bladder. The elastic closure device is placed around the open end of the container. The bladder is inflated to secure the container to the chute. Material is delivered into the container through the chute. When a specified quantity of material is loaded into the container, the bladder is deflated causing the container to slide off the chute. When the container slides off the chute, the elastic closure device contracts and closes the flexible open end of container by constricting the size of the flexible open end of the container such that material will not fall out during shipment. Multiple chutes may be supported on a moveable support structure and operated to provide a semi-automatic container loading and closing apparatus and method. The chutes may have a circular cross-sectional shape, or, alternatively, may have a rectangular cross-sectional shape, and in particular, a square cross-sectional shape. An alternate closure device adapted to a container adjacent the open end, provides a spring closure assembly, which includes opposed wire springs, for causing the container open end to form a rectangular, including a square, container opening when opened. A container incorporating a spring closure assembly is particularly suited for use with a chute having a rectangular cross-sectional shape.
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Kim Gene L.
Sipos John
United Parcel Service of America Inc.
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