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1. (WO2016050563) FILTER DEVICE

Pub. No.:    WO/2016/050563    International Application No.:    PCT/EP2015/071740
Publication Date: Fri Apr 08 01:59:59 CEST 2016 International Filing Date: Wed Sep 23 01:59:59 CEST 2015
IPC: B01D 27/00
B01D 27/08
Inventors: KOLLMANN, Andreas
PLAZL, Lovro
The invention relates to a filter device (1) comprising a filter housing (4) which is made of plastic, is provided with a filter housing pot (3) and a filter housing cover (2) that is welded to said pot (3), and has a longitudinal axis (5). The invention is characterized in that: - the filter housing cover (2) and the filter housing pot (3) both include a groove portion (6, 7), both of which jointly form a groove (8) for accepting overflowing welding material (9); - once the filter housing (4) has been welded together, the overflowing welding material (9) forms a form-locking connection along with the groove portions (6, 7), said form-locking connection being effective in the direction of the longitudinal axis (5). The result is a high-strength and pressure-stable joint.