Patent ID: 11857901
Assignee: CUMMINS FILTRATION IP, INC.
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 18:
19. A method of assembling a filter assembly comprising:
positioning an expansion membrane assembly at least partially in a housing such that the expansion membrane assembly extends along a housing inner surface, a housing top surface, and a housing outer surface of the housing, the expansion membrane assembly outwardly expandable within the housing towards the housing inner surface and a gap is defined between a portion of an outer surface of the expansion membrane assembly and a portion of the housing inner surface;
positioning a filter element for filtering a fluid at least partially within the expansion membrane assembly and at least partially within the housing such that the expansion membrane assembly fluidly separates and is positioned between the housing and the filter element, wherein the gap is defined between a portion of an outer surface of the expansion membrane assembly and a portion of the housing inner surface with the filter element radially spaced apart from an inner surface of the expansion membrane assembly, wherein
positioning the expansion membrane assembly at least partially within the housing causes a lip of the expansion membrane assembly to extend along the housing outer surface,
positioning the filter element at least partially within the expansion membrane assembly and at least partially within the housing positions a membrane body of the expansion membrane assembly between the housing inner surface and the filter element, and
positioning the expansion membrane assembly at least partially within the housing causes a bottom seal to be formed between a bottom surface of an extension of the membrane body and the housing top surface; and

attaching the housing to a filter head such that the filter head extends along the housing outer surface and along an inner surface of the membrane body, thereby causing an inner seal to be formed between the filter head and the inner surface of the membrane body.