Abstract: A folded filter medium for a filter element is provided with a cellulose substrate impregnated with a phenolic resin and furthermore provided with an ePTFE layer arranged on the cellulose substrate. A filter element with such a filter medium is provided. A filter assembly with a filter element having such a filter medium is also provided. A method for producing such a filter medium includes the steps of impregnating the cellulose substrate with the phenolic resin; applying the ePTFE layer onto the cellulose substrate impregnated with the phenolic resin; folding the cellulose substrate with the ePTFE layer applied thereon; and curing the phenolic resin.

Abstract: A percussion instrument, in particular electronic percussion instrument, includes at least one main attack element having at least one main attack surface and with a position detecting unit which is at least provided to detect an attack position of the main attack surface. The position detecting unit comprises at least two position detecting elements which are arranged decentrally with respect to the main attack surface, at least when the main attack surface is viewed perpendicularly.

Abstract: A percussion instrument, in particular electronic percussion instrument, includes at least one main attack element having at least one main attack surface and with a position detecting unit which is at least provided to detect an attack position of the main attack surface. The position detecting unit comprises at least two position detecting elements which are arranged decentrally with respect to the main attack surface, at least when the main attack surface is viewed perpendicularly.