Greif International Holding Bv

Johannes Mulder

Diederik Cornelis Egbert Hoorens Van Heijningen

Paulus Jozef Tamis

A steel drum () is manufactured from steel sheet and has a cylindrical shape with at least a bottom cover () in a sealed connection to the cylindrical shape. The steel drum includes a pattern of corrugations () on the circumferential surface of the cylindrical shape (). The pattern of corrugations () includes a plurality of corrugations () grouped in at least one cluster (), and the corrugations () have a substantially identical shape and size. Additionally, the invention relates to a method for manufacturing a steel drum () including: providing a steel sheet; creating a cylindrical shape from the steel sheet; creating a pattern of a plurality of corrugations () on the cylindrical shape such that the corrugations () are on the circumferential surface of the cylindrical shape () in at least one cluster (), and providing each of the corrugations () to have a substantially identical shape and size of corrugations () in at least one cluster (), and providing each of the corrugations () to have a substantially identical shape and size.

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Velsen-Noord, Netherlands

Johannes Mulder