Special receptacle or package – With pallet feature
Reexamination Certificate
1999-07-09
2001-10-30
Bui, Luan K. (Department: 3728)
Special receptacle or package
With pallet feature
C206S523000, C220S620000, C156S244110
Reexamination Certificate
active
06308830
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention pertains to a device for protecting a large-volume container during the storage and transport of liquid, slow-flowing, powdered, and granular contents, consisting of a pallet-like support body, which supports the container from underneath, and a jacket body, which is connected to the support body and which surrounds the sides of the container. The invention also pertains to a process for the production of the device.
2. Description of the Related Art
Large-volume containers, the capacities of which are usually in the range of 500-1,000 liters and which are made of plastic by the blow-molding method, are used for the transport and storage of liquid, slow-flowing, powdered, and granular materials. These containers have a closable opening at the top for filling and an opening at the bottom with a shut-off valve for emptying. So that a container of this type can be transported and stored easily and without damage, it is supported, usually by its rectangular base, on a pallet-like support body of wood, metal, or plastic. A jacket body, made of vertical and horizontal bars of metal, welded together, rests on top of the support and surrounds the sides of the container. A metal jacket body is disadvantageous and therefore undesirable in the chemical industry and also in the food product sector. A device consisting of a support body and a jacket body for protecting pallet containers of this type is considered disadvantageous because, first, it is very expensive to produce, and second, because there is always the danger that the jacket body can separate from the support body. The grid-like jacket body, furthermore, cannot completely exclude the risk of damage to the container.
SUMMARY OF THE INVENTION
The invention is therefore based on the task of creating a device for protecting a large-volume container for the transport and storage of liquid, slow-flowing, powdered, and granular materials, which can be produced easily and cheaply, which is almost completely resistant to chemical rusting, and which excludes the danger that the jacket body can separate from the support body. In addition, the device is also intended to have an attractive appearance and to offer better protection to the container.
To accomplish this task, it is proposed according to the invention that, for a device the of general type described above, the support body and jacket body be made as an integral unit of plastic with a three-layer wall, consisting of a compact outer layer, a compact inner layer, and an intermediate layer of foam.
A device designed in this way can be produced relatively quickly and cheaply. It gives the container held within it a very high degree of protection, and it also has a good visual appearance. The danger that the jacket body can separate from the support body is excluded. The weight of a device such as this is relatively low.
Additional features of the device according to the invention and of a process for its production will be come apparent from the following description of preferred embodiments.
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Bui Luan K.
Friedrich Kueffner
Greif Bros. Corporation
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