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US 5,344,719 AGranted
Welding band
AssigneeWindmoeller & Hoelscher KG
InventorHorst Bauer
Life of this patent
Estimating the term…
Abstract
The invention relates to a welding band for welding synthetic resin film including a steel band, which is coated in its end parts with a thin copper layer. To attain the aim of improving the working life of such a welding band, the thin copper layer is covered with an even thinner metallic layer, preferably of nickel.
Claims3
A welding band for welding synthetic resin film, said welding band comprising:
- a steel band having end parts coated with a copper layer, said copper layer being coated with a metallic protective layer consisting of nickel having a thickness less than a thickness of said copper layer.
Dependencies are inferred from the claim text.