Invention Grant
- Patent Title: Filter cartridge
- Patent Title (中): 滤芯
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Application No.: US11851033Application Date: 2007-09-06
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Publication No.: US07935255B2Publication Date: 2011-05-03
- Inventor: Zemin Jiang
- Applicant: Zemin Jiang
- Applicant Address: US MN Minneapolis
- Assignee: Cummins Filtration IP, Inc.
- Current Assignee: Cummins Filtration IP, Inc.
- Current Assignee Address: US MN Minneapolis
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Agent J. Bruce Schelkopf
- Main IPC: C02F9/00
- IPC: C02F9/00 ; B01D27/00

Abstract:
A filter cartridge configured as a filter-in-filter design with an inner filter and an outer filter. The filter cartridge has features, for example an overhanging lip, to engage with a lid of a filter housing in which the cartridge is installed such that the lid is connected to the cartridge. As a result, the cartridge can be connected to the lid to facilitate installation and removal of the cartridge. Alternatively, the same features that allow connection with the lid permit a user to manually grasp the cartridge during installation and removal so that the cartridge can be used without a lid having attachment features. The filter cartridge is also designed to enable use of a longer inner filter within the outer filter. A longer inner filter increases the amount of filter media available for filtering the fluid.
Public/Granted literature
- US20090065427A1 FILTER CARTRIDGE Public/Granted day:2009-03-12
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