US Patent 7789926 Axial flow filter element

In a filter housing (100) for at least one axial flow filter element (70) capable of receiving axial flow between its end faces and having at least one continuous sealing collar on its outer circumference which can be pressed against a sealing flange (17) on the housing, a plurality of filter elements (70) can be inserted side by side into cutouts (19) of a common clamping frame element (30). Each of the sealing collars rests on the clamping frame element (30) which is plane parallel to the at least one sealing flange (17) and displaceable toward the sealing flange (17) by a clamping device (50).