Special receptacle or package – With pallet feature – Binder wrap for content
Reexamination Certificate
2001-01-10
2003-01-07
Bui, Luan K. (Department: 3728)
Special receptacle or package
With pallet feature
Binder wrap for content
C206S303000
Reexamination Certificate
active
06502700
ABSTRACT:
FIELD OF THE INVENTION
The invention relates to a spacer for coiled products, especially for coiled tube products, said spacer having an essentially flat, preferably disk-shaped body, and act as a pad interposed between stacked coils.
BACKGROUND OF THE INVENTION
It is known to use spacers between stacked coils of coiled products to protect the products, especially during their shipment or storage. The spacers provide for a pad between coils for shipment. The spacer is typically a circular disk-shaped product and made for example from cardboard such as corrugated fiberboard. This kind of spacers have been very useful for stacked coiled products, e.g. for stacked coiled copper tubes. Each coil is bound with at least one band to keep coil loops in order. Before uncoiling the product the band has to be cut and preferably removed. This is necessary when uncoiling the product with so called inner end payoff method (ID payoff). The copper tube coils can be quite heavy and this makes the removal of bands very difficult. When using the known spacers, the coil either have to be lifted or the bands with very sharp edges have to be pulled out from under the coils utilizing extreme force. Either method can cause damage to the product for example to the coil of very fragile, annealed thin wall copper tube. Pulling the band from under the coils can result in band dents in the lower layer of the level wound tube. Lifting the coil can cause portions of the tube to be flattened.
The object of the present invention is to realize a spacer for coiled products, by means of it the drawbacks of the prior art are avoided. Another object of the invention is to realize a spacer that is better suited for the inner end payoff method of level wound coil of tube. A further object of the invention is to provide a spacer suitable to a shipment of level wound coils and for the removal of the bands that contain the coil during shipment without damaging the coil or having to lift the coils. And finally a fourth object of the invention is to provide a spacer that will not catch on the tube while paying off.
SUMMARY OF THE INVENTION
The spacer according to the invention is characterized, among others, in that said spacer comprises at least one slot, extending in radial direction a distance from the outer edge of the center of the spacer. In accordance with one form of the invention said at least one slot is arranged substantially on an area of the spacer body where at least one binding band and like coil confining means and the spacer are abutting each other. The slot may be either open or closed along the outer diameter of the spacer.
In another form of the invention the spacer comprises at least two slots arranged preferably substantially diametrically on the spacer. In third form of the invention the spacer comprises at least four slots divided preferably evenly on the circumference of the spacer.
The slots in the spacer allow the operator to simply cut the bands and pull them out under the coil easily because the slots are located directly under the bands. This can be done without damaging the coiled product or having to lift the product coils. The form of the spacer is very useful and the spacer can be made in a single piece. In addition, the spacer according to the invention gives a very good protection to the coiled product.
REFERENCES:
patent: 4998619 (1991-03-01), Sowa et al.
patent: 5918745 (1999-07-01), Main
patent: 6119865 (2000-09-01), Kawada
patent: 6286684 (2001-09-01), Brooks et al.
Bui Luan K.
Outokumpu Oyj
Smith-Hill and Bedell
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