Hydac Filtertechnik Gmbh

Jurgen Lang

Harald Mees

Gerd Altmeyer

A method produces a connection interface in a tubular filter element for filtering liquids, including a filter mat (). The opposite ends () of the filter mat are interconnected in a connection position by a planar weld seam () provided with an embossed strip in the region of the free ends () of the filter mat. A region is provided between the embossed weld seam () and the beginning of the transition towards the tubular filter mats, in which a smooth weld seam () is applied without embossing in a flat strip along the ends () of the filter mat. This arrangement enables the ends of the filter mat to be welded together in a strong and long-lasting manner. The embossed weld seam is simultaneously unloaded of any stress by the smooth weld seam.

Growing community of inventors

Sulzbach, Germany

Jurgen Lang