Patent ID: 11896921
Assignee: nan
Field: Chemical engineering (Chemistry)
Classification: CPC B  D | IPC B  D

Claim 12:
13. A filter medium for filtering particulate matter from a liquid, the filter medium comprising:
a nonwoven sliver formed into a predetemined shape, wherein the nonwoven sliver comprises:
first synthetic staple fibers having a first denier;
second synthetic staple fibers having a second denier; and
third synthetic staple fibers having a third denier;, wherein the filter medium is configured to filter particulate matter from a liquid, and wherein the first denier ranges from about 1 denier to about 10 denier, the second denier ranges from about 10 denier to about 20 denier, and the third denier ranges from about 20 denier to about 50 denier;
wherein the filter medium comprises a core and an outer wrap;, wherein:
the nonwoven sliver is a first nonwoven sliver comprising synthetic staple fibers having a first density,
the filter medium further comprises a second nonwoven sliver comprising synthetic staple fibers having a second density,
the core comprises the first nonwoven sliver, and
the outer wrap comprises the second nonwoven sliver.