| 主权项 |
1. A filter cartridge, for crankcase ventilation filtration, comprising:
(a) a media pack surrounding an open filter interior; (b) a central media support tube surrounded by the media pack; (c) first and second seal members; and, (d) first and second end pieces positioned with the media pack therebetween;
(i) the first end piece including a first axial projection thereon extending in a direction away from the second end piece;
(A) the first end piece including an outer perimeter and a central aperture;(B) the first axial projection including a base section with the first seal member thereon; and,(C) the first axial projection including a projection extending from adjacent the first seal member in a direction away from the base section;(ii) the second end piece having an outer perimeter and including a central aperture therethrough in communication with the open filter interior;(iii) the second end piece including a second seal support thereon projecting in a direction away from the first end piece; the second seal support on the second end piece supporting the second seal member; and,(iv) the first seal member being mounted on the first seal support for radially outwardly directed sealing engagement with a surrounding portion of an assembly in use;
(A) the first seal member having a different outer dimension from each of an outer perimeter and an inner perimeter of the media pack; and,(v) the second seal member being mounted on the second seal support in an orientation for radially outwardly directed sealing engagement with a surrounding portion of an assembly, in use;
(A) the second seal member having a different outer dimension from each of an outer perimeter and an inner perimeter of the media pack; and,(B) the second seal member having a different outer perimeter than the first seal member. |
