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US 10,646,803 B2Granted
Liquid filter arrangement and methods
AssigneeDonaldson Company, Inc.
InventorsEnrico Greco, Fabrizo Buratto, Mauro Cantoni, John Connelly, John Hacker
Life of this patent
Estimating the term…
Abstract
A liquid filter arrangement is provided, as well as methods of assembly and use. Advantageous features, relating to a preferred filter cartridge and a preferred slide arrangement, are provided.
Claims16
A filter cartridge for use as a serviceable filter cartridge with a liquid filter assembly;
- the filter cartridge comprising:
- (a) a region of filter media defining a central, open, volume,
- (i) the region of filter media having first and second ends;
- (b) a first end cap secured to the first end of the region of filter media;
- (i) the first end cap having an outermost periphery and a plurality of radial projections thereon;
- the radial projections being located at the outermost periphery of the first end cap;
- (c) an axial stem being a portion of the first end cap and defining a central liquid flow conduit therethrough, in liquid flow communication with the central, open, volume defined by the filter media;
- (i) the axial stem including a portion projecting away from the filter media;
- (ii) the axial stem including an outer, annular, seal arrangement thereon;
- and
- (iii) an end of the axial stem remote from the filter media comprising a plurality of spaced axial projections each having a free end that is narrower at the free end than at a region closer to the filter media, and a plurality of depressions between the axial projections;
- and
- (d) a second end cap secured to the second end of the region of filter media.
10 more elements
A filter cartridge for use as a serviceable filter cartridge with a liquid filter assembly;
- the filter cartridge comprising:
- (a) a region of filter media defining a central, open, volume,
- (i) the region of filter media having first and second ends;
- (b) a first end cap secured to the first end of the region of filter media;
- (c) the filter cartridge including an axial stem thereon projecting away from the filter media;
- (i) the axial stem having comprising a plurality projections spaced from one another by guide channels;
- (ii) each one of the plurality of projections having a non-blunt end defined by an apex and a pair of sides extending at an angle, around the apex, within the range of 110°-170°;
- and
- (d) a second end cap secured to the second end of the region of filter media.
6 more elements
Dependencies are inferred from the claim text.